Comprehensive Belgian Investment Tax Guide
Belgian Tax Obligations for Investors
A detailed reference guide covering the Taks op Beursverrichtingen (TOB), capital gains taxation under the 2026 reform and dividend withholding tax obligations for Belgian tax residents investing in domestic and foreign securities.
Section 1: Taks op Beursverrichtingen (TOB)
Stock Exchange Transaction Tax
1.1 Legal Framework and Scope
The Taks op Beursverrichtingen (TOB), established under the Code of Miscellaneous Duties and Taxes (Wetboek diverse rechten en taksen), constitutes a transaction tax levied on the purchase and sale of securities by Belgian tax residents. The tax applies regardless of whether the transaction is executed through a Belgian or foreign intermediary. This obligation extends to Belgian residents who trade through international brokers such as Interactive Brokers, DEGIRO or Trade Republic.
The taxable event occurs at the moment of settlement of the transaction. The tax base comprises the total consideration paid or received, including any transaction fees charged by the broker but excluding the TOB itself.
It is essential to note that TOB applies to both the purchase and the sale of most securities. A common misconception is that the tax only applies upon disposal. In practice, an investor executing a round trip transaction (buy followed by sell) will incur TOB twice: once on acquisition and once on disposal.
1.2 Applicable Rates and Annual Caps
The TOB rate varies according to the classification of the security. The legislature has established different rates to reflect the nature and risk profile of various instrument types. Each rate category is subject to an annual cap per transaction, limiting the maximum tax payable on large trades.
| Security Classification | Rate | Application | Maximum Cap |
|---|---|---|---|
| Shares (Belgian and foreign equities) | 0.35% | Buy and Sell | €1,600 |
| ETFs (non-Belgian registered, Irish/Luxembourg domiciled) | 0.12% | Buy and Sell | €1,300 |
| Belgian registered accumulating funds | 1.32% | Buy and Sell | €4,000 |
| REITs, GVV/SIR, Real Estate Certificates | 0.12% | Buy and Sell | €1,300 |
| Belgian Government Bonds (OLO) | 0.12% | Buy and Sell | €1,300 |
| Corporate and Foreign Bonds (secondary market) | 0.12% | Sell only | €1,300 |
Classification Considerations
The distinction between Belgian registered and non-Belgian registered funds is critical. Most retail investors purchasing ETFs through international brokers acquire Irish or Luxembourg domiciled funds (identifiable by ISIN codes beginning with IE or LU), which attract the 0.12% rate. Belgian registered accumulating funds, typically offered by Belgian banks, are subject to the significantly higher 1.32% rate.
Cryptocurrency and digital assets are not subject to TOB as they do not constitute securities within the meaning of the applicable legislation. However, Exchange Traded Products (ETPs) that track cryptocurrency prices and are structured as debt instruments may be subject to TOB depending on their legal classification.
1.3 Calculation Methodology and Worked Examples
Example A: Standard ETF Transaction
Purchase of iShares Core MSCI World UCITS ETF (IE00B4L5Y983). The tax base includes broker fees.
Example B: Large Stock Transaction with Cap
Sale of Apple Inc. shares (US0378331005)
The cap applies per transaction. Multiple transactions in the same period each benefit from the cap independently.
Example C: Monthly Trading Activity Summary
An investor executes the following transactions during January 2026:
| Date | Security | Type | Value | Rate | TOB |
|---|---|---|---|---|---|
| 03/01 | VWCE (IE00BK5BQT80) | Buy | €10,000 | 0.12% | €12.00 |
| 08/01 | Microsoft (US5949181045) | Buy | €15,000 | 0.35% | €52.50 |
| 15/01 | Tesla (US88160R1014) | Sell | €8,500 | 0.35% | €29.75 |
| 22/01 | Aedifica (BE0003851681) | Buy | €5,000 | 0.12% | €6.00 |
| Total TOB for January 2026 | €100.25 | ||||
This amount must be declared and paid by the last business day of March 2026 using form TD-OB 01 via MyMinfin.
1.4 Declaration Requirements and Payment Procedures
Belgian residents trading through foreign brokers that do not withhold TOB at source bear personal responsibility for declaration and payment. The declaration must be filed monthly using form TD-OB 01, available through the MyMinfin portal. Belgian Tax Calculator automatically generates the completed TD-OB 01 form based on your imported transactions, ready for submission to the tax authorities. This functionality is free to use for all users. Additionally, Belgian Tax Calculator sends automatic email reminders before each deadline. Users can configure up to three reminder notifications to ensure they never miss a payment.
The deadline for filing and payment is the last business day of the second month following the month in which the transactions were executed. This means transactions executed in January must be declared and paid by the last business day of March; transactions in February by the last business day of April, and so forth. If the last day of the month falls on a weekend or Belgian public holiday, the deadline shifts to the preceding business day.
| Transaction Month | Declaration Deadline | Example for 2026 |
|---|---|---|
| January 2026 | Last business day of March 2026 | Tuesday, 31 March 2026 |
| February 2026 | Last business day of April 2026 | Thursday, 30 April 2026 |
| March 2026 | Last business day of May 2026 | Friday, 29 May 2026 |
| April 2026 | Last business day of June 2026 | Tuesday, 30 June 2026 |
| December 2026 | Last business day of February 2027 | Friday, 26 February 2027 |
Both the declaration and payment must be completed by the deadline. It is not sufficient to file the declaration on time if payment is made late. Late payment incurs interest charges and potential penalties. Belgian Tax Calculator sends reminder notifications before each deadline to ensure timely compliance.
Calculate Monthly TOB
Aggregate all taxable transactions for the calendar month. Apply the correct rate to each transaction based on security classification and sum the results.
Submit Declaration
Complete form TD-OB 01 via MyMinfin. The form requires transaction details including ISIN codes, transaction dates, values and applicable rates for each trade.
Execute Payment
Transfer the calculated amount to the FPS Finance collection account using the structured communication provided upon submission.
Payment Account Details
Beneficiary
FPS Finance Collection Centre
IBAN
BE39 6792 0022 9319
BIC/SWIFT
PCHQBEBB
The structured communication (gestructureerde mededeling) follows the format +++NNN/NNNN/NNNNN+++ and is generated upon submission of the TD-OB 01 form. Using an incorrect or missing communication may result in processing delays.
Late Filing Penalties and Interest
Late Filing Penalty
€50 per week
Maximum €2,600 per calendar year per declaration. The penalty accrues weekly from the first day following the deadline.
Late Payment Interest (2026)
4.50% per annum
Civil law interest rate established annually by Royal Decree. Interest is calculated from the day following the payment deadline.
The €50 per week penalty may be waived if the taxpayer proactively contacts the tax authorities to regularise the late filing. Voluntary disclosure and cooperation are viewed favorably by the administration. It is advisable to contact FOD Financien promptly upon discovering a missed deadline rather than waiting for enforcement action.
Late TOB payments cannot be made using the standard TD-OB 01 form and structured payment reference. Once a deadline has passed, the tax authority will issue a separate payment form with a new reference number. This form must be used to settle the outstanding amount together with any applicable interest. Do not attempt to pay late amounts via the normal procedure as this may result in payment allocation errors.
1.5 Broker Withholding Obligations
Belgian financial institutions are required to withhold and remit TOB on behalf of their clients. Foreign brokers may offer voluntary withholding services as a convenience feature. The following table summarises the withholding practices of commonly used brokers:
| Broker | Withholding Status | Notes |
|---|---|---|
| Bolero (KBC) | Automatic | Belgian institution, mandatory withholding |
| Keytrade Bank | Automatic | Belgian institution, mandatory withholding |
| BNP Paribas Fortis | Automatic | Belgian institution, mandatory withholding |
| DEGIRO | Optional | Must be enabled in account settings; charges €2.50 per declaration |
| Interactive Brokers | Not available | Investor must self declare via MyMinfin |
| Trade Republic | Not available | Investor must self declare via MyMinfin |
| Saxo Bank | Automatic | Automatic withholding and declaration for Belgian residents |
Start Using BelgianTaxCalculator.be for Free
Automatically calculate your TOB liability, generate TD-OB 01 forms ready for submission, and receive deadline reminders. No credit card required.
Create Free AccountSection 2: Capital Gains Tax (Meerwaardebelasting)
Effective from 1 January 2026
2.1 Legislative Background and Scope
The Belgian capital gains tax regime underwent fundamental reform effective 1 January 2026, introducing systematic taxation of investment profits for the first time. Prior to this date, capital gains realised by private individuals managing their personal patrimony were generally exempt from taxation under the principle of "bonus pater familias" (prudent investor management).
The new regime establishes two distinct tax rates: a standard rate of 10% applicable to gains realised through normal investment management and an elevated rate of 33% for gains classified as speculative. The characterisation of a transaction as speculative depends on factors including holding period, trading frequency, use of leverage and the nature of the instruments involved.
The tax applies to realised gains on the disposal of movable assets including shares, bonds, ETFs, investment funds and cryptocurrency. Unrealised appreciation is not subject to taxation until the asset is disposed of. The regime applies to Belgian tax residents regardless of where the securities are held or traded.
When a Belgian tax resident emigrates from Belgium, all unrealised capital gains become immediately taxable as if the assets were disposed of on the date of departure. This exit tax ensures that gains accrued during Belgian tax residency cannot escape taxation by relocating abroad before selling the assets. The deemed disposal value is the fair market value on the date of emigration.
2.2 Tax Rates, Exemptions and Classification
Annual Exemption
€10,000
Per taxpayer per calendar year. Married couples filing jointly benefit from a combined exemption of €20,000.
Standard Rate
10%
Applicable to gains exceeding the exemption threshold from normal investment management.
Speculative Rate
33%
Applicable to gains from speculative activities. No exemption applies.
Speculative Classification Criteria
The tax authorities will assess multiple factors when determining whether gains are speculative. No single factor is determinative; the assessment considers the totality of circumstances:
Factors Indicating Speculation:
- • Holding periods measured in days or weeks
- • High transaction frequency relative to portfolio size
- • Use of margin, leverage or borrowed funds
- • Trading in derivatives, options or CFDs
- • Day trading or intraday position closing
- • Disproportionate time devoted to trading
Factors Indicating Normal Management:
- • Holding periods measured in years
- • Low portfolio turnover
- • No use of leverage or margin
- • Investment in established equities and ETFs
- • Diversified portfolio construction
- • Income from other professional activities
BelgianTaxCalculator.be allows users to configure their own speculative classification thresholds based on holding period (number of days) and transaction amount. The system automatically applies these thresholds to all trades. Additionally, individual trades can be manually edited if a different classification is required for specific transactions.
Assets Subject to Capital Gains Tax
Taxable Assets:
- • Listed equities (domestic and foreign)
- • Exchange Traded Funds (ETFs)
- • Bonds (corporate and government)
- • Investment funds (distributing and accumulating)
- • Cryptocurrency and digital assets
- • Derivatives at settlement
- • Structured products
Exempt or Special Treatment:
- • Primary residence (separate regime)
- • Pension savings plans (pillars 2 and 3)
- • Life insurance products (separate regime)
- • Employee stock options (employment income)
- • Gains below annual €10,000 exemption
Understanding the €10,000 Annual Exemption
The €10,000 annual exemption constitutes the cornerstone of the Belgian capital gains tax regime for private investors. This exemption operates as a threshold below which no capital gains tax is payable on gains classified as arising from normal asset management. The exemption applies per taxpayer per calendar year, meaning married couples filing jointly benefit from a combined €20,000 exemption.
Critically, the exemption is applied after netting gains against losses within the same calendar year. This sequencing has significant implications for tax planning: losses reduce the net gain figure before the exemption is applied, potentially resulting in the exemption absorbing lower value gains and providing less absolute tax benefit. However, given that unused exemption cannot be carried forward, realising gains up to the exemption threshold each year may be advantageous.
The exemption applies exclusively to gains taxed at the standard 10% rate. Gains classified as speculative (33% rate) do not benefit from any exemption. This creates a critical distinction: speculative gains are taxed from the first euro, while normal management gains benefit from the €10,000 buffer.
Capital Gains Tax Calculation Methodology
The Belgian Tax Calculator applies the following systematic methodology to calculate your capital gains tax liability. Each step must be performed in sequence as the results of earlier steps feed into later calculations.
Step 1: Identify All Disposal Events
Aggregate all sales, redemptions and disposal events during the calendar year. For each disposal, record the proceeds received, the asset identifier (ISIN or ticker), the quantity disposed and the disposal date. Exclude transfers between your own accounts (these are not disposal events) and corporate actions such as stock splits (which adjust cost basis but do not trigger gains).
Example: You sold 100 shares of BE0003739530 (UCB SA) for €142.50 per share on 15 March 2026, receiving proceeds of €14,250.00.
Step 2: Determine Cost Basis for Each Disposal
For each disposal, calculate the allowable cost basis using the appropriate method. For holdings acquired entirely before 1 January 2026, use the weighted average cost. For holdings acquired entirely after 1 January 2026, apply FIFO (First In First Out). For mixed holdings (acquired both before and after the cutoff), the pre-2026 portion uses weighted average while the post-2026 portion uses FIFO. The pre-2026 weighted average pool is depleted first under the transitional rules.
Example: Your 100 UCB shares were acquired: 60 shares in October 2024 at €95.00 (pre-2026, weighted average pool = €95.00), 40 shares in February 2026 at €115.00 (post-2026, FIFO). Selling 100 shares depletes all 60 pre-2026 shares at €95.00 average cost plus 40 post-2026 shares at €115.00 FIFO cost. Total cost basis: (60 x €95.00) + (40 x €115.00) = €5,700 + €4,600 = €10,300.
Step 3: Calculate Gain or Loss per Disposal
For each disposal, subtract the cost basis from the proceeds. The result is either a gain (positive) or loss (negative). Currency conversion, where applicable, uses the ECB reference rate on the settlement date of each transaction.
Example: Proceeds €14,250.00 minus cost basis €10,300.00 = gain of €3,950.00 on the UCB disposal.
Step 4: Classify Each Gain or Loss
Categorise each gain or loss as arising from either normal asset management (10% rate, exemption eligible) or speculative activity (33% rate, no exemption). The classification considers holding period, transaction frequency, use of leverage, instrument type and trading patterns. Create separate subtotals for normal gains, normal losses, speculative gains and speculative losses.
Example: The UCB gain of €3,945.00 is classified as normal management (held for 17 months, no leverage, established equity).
Step 5: Net Gains Against Losses Within Each Category
Losses may only offset gains within the same category. Normal losses can only offset normal gains, and speculative losses can only offset speculative gains. Cross-category offsetting is not permitted: you cannot use normal management losses to reduce speculative gains, nor speculative losses to reduce normal gains. If losses exceed gains within a category, the excess is lost and cannot be carried forward.
Example: Total normal gains €28,500, normal losses €6,200. Net normal gain: €22,300.
Step 6: Attribute Gains Based on Household Composition
For married couples or legal cohabitants filing jointly, gains must be attributed between partners based on portfolio ownership. Portfolios owned individually are attributed 100% to that partner. Joint portfolios are split according to the ownership ratio (typically 50/50). Each partner's attributed gains are then subject to their individual exemption. BelgianTaxCalculator.be automatically calculates attribution based on the household settings and portfolio ownership you configure.
Example: A married couple has €30,000 net normal gains. Partner A owns portfolios with €20,000 gains, Partner B owns portfolios with €10,000 gains. Each partner applies their own €10,000 exemption separately.
Step 7: Apply the €10,000 Exemption
The €10,000 exemption is applied per taxpayer to net normal gains after loss offsetting and attribution. Single taxpayers receive one €10,000 exemption. Married couples or legal cohabitants each receive their own €10,000 exemption (combined €20,000), applied to their individually attributed gains. If net normal gains are €10,000 or less per person, no normal tax is payable. The exemption cannot reduce speculative gains and cannot create a negative taxable amount.
Example: Partner A: €20,000 gains minus €10,000 exemption = €10,000 taxable. Partner B: €10,000 gains minus €10,000 exemption = €0 taxable.
Step 8: Calculate Tax Liability
Apply the appropriate rate to each category of taxable gains. Normal gains (after exemption) are taxed at 10%. Speculative gains are taxed at 33%. Sum the results to determine total capital gains tax liability for the year.
Example: €12,300 x 10% = €1,230 normal tax. Plus €4,500 speculative gains x 33% = €1,485 speculative tax. Total CGT liability: €2,715.
2.2b Comprehensive Calculation Examples
The following detailed examples illustrate how the capital gains tax calculation methodology applies in practice across different portfolio scenarios. These examples demonstrate the interaction between cost basis methods, loss offsetting and the annual exemption.
Example 1: Single Asset Disposal Within Exemption
An investor sells their entire position in a Belgian equity, realising a gain below the annual exemption threshold.
Transaction Details
Asset
Solvay SA (BE0003470755)
Acquisition
March 2024: 80 shares @ €92.50
Disposal
April 2026: 80 shares @ €108.00
Holding Period
25 months (normal management)
Result: The gain of €1,240.00 falls entirely within the €10,000 annual exemption. No capital gains tax is payable. The remaining exemption of €8,760.00 may be used for other gains realised during 2026.
Example 2: Multiple Assets Exceeding Exemption
An investor realises gains across multiple positions during the year, with total gains exceeding the exemption threshold.
Annual Transaction Summary
| Asset | Proceeds | Cost Basis | Gain/Loss |
|---|---|---|---|
| iShares Core MSCI World (IE00B4L5Y983) | €45,200 | €38,400 | +€6,800 |
| ASML Holding (NL0010273215) | €28,750 | €19,200 | +€9,550 |
| KBC Group (BE0003565737) | €12,400 | €10,800 | +€1,600 |
| Ageas SA (BE0974264930) | €8,200 | €7,150 | +€1,050 |
Result: Total gains of €19,000 exceed the €10,000 exemption by €9,000. Tax at 10% on the excess results in €900 payable. Effective tax rate on total gains: 4.74%.
Example 3: Loss Offsetting and Exemption Interaction
This example demonstrates how losses reduce the net gain before the exemption is applied, and the implications for tax planning.
Gains Realised
Losses Realised
Tax Planning Observation
If the investor had not realised the €8,000 in losses this year, the calculation would be: €25,700 gains - €10,000 exemption = €15,700 taxable x 10% = €1,570 tax. By realising losses, the investor saved €800 in taxes (€1,570 - €770). However, the losses are now consumed and cannot be used in future years. If gains next year are lower, those losses might have been more valuable then. Tax loss harvesting requires consideration of expected future gains.
Example 4: Combined Standard and Speculative Gains
An investor has both long term holdings (normal management) and short term trading positions (speculative). This example shows how the two categories are taxed separately.
Normal Management (10% rate)
ETF portfolio held 3+ years: +€14,200
Belgian equities held 18 months: +€6,800
Subtotal: €21,000
Speculative (33% rate)
Options trading profits: +€3,500
CFD positions (leveraged): +€2,200
Subtotal: €5,700
Standard Rate Calculation:
Speculative Rate Calculation:
Total Tax Summary:
Effective tax rates: Standard portion 5.24% (€1,100 / €21,000), Speculative portion 33% (€1,881 / €5,700), Blended 11.16% (€2,981 / €26,700).
Example 5: Cutoff Value Election (31/12/2025)
An investor holds a position acquired well before 2026 that has significantly appreciated. For pre-2026 holdings, investors can elect to use the market value on 31/12/2025 as their cost basis instead of the original purchase price. This example compares the tax outcomes under both cost basis election options.
Position Details
Asset
Lotus Bakeries (BE0003604155)
Original acquisition (2019)
25 shares @ €2,400 = €60,000
Value on 31 Dec 2025
25 shares @ €9,200 = €230,000
Sale in June 2026
25 shares @ €9,800 = €245,000
Option A: Original Cost Basis
Option B: Dec 2025 Valuation
Tax saving from December 2025 election: €17,000. By electing the December 2025 market value as cost basis, the €170,000 of appreciation that occurred before the new tax regime is excluded from taxation. Only the €15,000 gain since 1 January 2026 is subject to capital gains tax. This election is irrevocable once made.
2.3 Cost Basis Calculation Methods
The determination of cost basis (aanschaffingswaarde) is critical for calculating taxable gains. The applicable method depends on when the securities were acquired:
Pre-2026 Acquisitions: Weighted Average
For securities acquired before 1 January 2026, the cost basis is determined using the weighted average method (gewogen gemiddelde). This averages all acquisition costs weighted by the number of shares purchased at each price.
Example:
January 2024: 50 shares @ €80 = €4,000
June 2024: 30 shares @ €100 = €3,000
December 2025: 20 shares @ €120 = €2,400
Weighted average: €9,400 / 100 = €94 per share
Post-2026 Acquisitions: FIFO
For securities acquired from 1 January 2026 onwards, the First In First Out (FIFO) method is mandatory. When shares are sold, the cost basis of the earliest acquired shares is used first.
Example:
February 2026: 40 shares @ €90
May 2026: 60 shares @ €110
Sale in August 2026: 50 shares @ €130
Cost basis: 40 x €90 + 10 x €110 = €4,700
December 2025 Valuation Snapshot
For positions held on 31 December 2025, investors may elect to use either the weighted average cost basis or the market value as at 31 December 2025 as their starting cost basis. This election, once made, is irrevocable. The option exists to prevent taxation of gains that accrued before the new regime took effect.
Consider electing the December 2025 market value if your positions have significantly appreciated since acquisition. Conversely, if positions have declined in value, retaining the original cost basis may be advantageous for recognising losses.
BelgianTaxCalculator.be automatically analyses each position and selects the optimal cost basis (original purchase price vs. 31/12/2025 market value) to minimise your total tax liability.
2.4 Loss Offset Rules and Limitations
The Belgian capital gains tax regime permits the offset of realised losses against realised gains within the same calendar year. This provides an opportunity for tax loss harvesting: strategically realising losses to reduce taxable gains. However, the regime imposes significant limitations that distinguish it from more generous systems in other jurisdictions.
Permitted Loss Offset
- • Losses may offset gains within the same calendar year
- • The offset occurs before application of the €10,000 exemption
- • Normal losses can only offset normal gains
- • Speculative losses can only offset speculative gains
Prohibited Loss Treatment
- • No carry forward of losses to future tax years
- • No carry back of losses to prior tax years
- • Losses exceeding gains in a year are permanently lost
- • No refund for losses without offsetting gains
Tax Loss Harvesting Example
Without Loss Harvesting:
Realised gain on Position A: €25,000
Unrealised loss on Position B: (€8,000)
Exemption: (€10,000)
Taxable gain: €15,000
Tax payable (10%): €1,500
With Loss Harvesting:
Realised gain on Position A: €25,000
Realised loss on Position B: (€8,000)
Net gain: €17,000
Exemption: (€10,000)
Taxable gain: €7,000
Tax payable (10%): €700
Tax saving through loss harvesting: €800. Note that after selling Position B at a loss, the wash sale rules may apply if substantially identical securities are repurchased within a short timeframe.
No Loss Carryforward: Understanding the Belgian Rule
One of the most significant limitations of the Belgian capital gains tax regime is the prohibition on loss carryforward. Unlike many other European jurisdictions and the United States, Belgium does not allow investors to carry forward capital losses from one tax year to offset gains in future tax years. Similarly, there is no provision for carrying losses back to prior tax years. This means that any realised losses that exceed realised gains within a calendar year are permanently lost for tax purposes.
The rationale for this restriction stems from the Belgian tax philosophy that treats capital gains taxation as an annual assessment. Each tax year is considered independently, and losses are viewed as consumption of the €10,000 exemption rather than a deferrable tax attribute. This approach simplifies administration but can create significant tax inefficiency for investors with volatile portfolios.
The prohibition applies separately to each category of gains. Normal losses that exceed normal gains are lost, and speculative losses that exceed speculative gains are similarly lost. Cross-category carryforward is also prohibited: excess normal losses cannot be carried forward to offset future normal gains, and the same applies to speculative losses.
Multi-Year Example: Impact of No Carryforward
Consider an investor with the following three year trading history. This example demonstrates how the absence of loss carryforward creates a significant tax inefficiency compared to jurisdictions that permit it.
| Year | Gains | Losses | Net | Exemption | Taxable | Tax @ 10% |
|---|---|---|---|---|---|---|
| 2026 | €5,000 | -€35,000 | -€30,000 | €0 | €0 | €0 |
| 2027 | €25,000 | €0 | €25,000 | -€10,000 | €15,000 | €1,500 |
| 2028 | €20,000 | €0 | €20,000 | -€10,000 | €10,000 | €1,000 |
| Total | €50,000 | -€35,000 | €15,000 | -€20,000 | €25,000 | €2,500 |
Belgian System (No Carryforward)
2026: €30,000 loss -> Lost forever
2027: €15,000 taxable x 10% = €1,500
2028: €10,000 taxable x 10% = €1,000
Total tax paid: €2,500
Cumulative net: €15,000 gain, €2,500 tax
If Carryforward Were Allowed
2026: €30,000 loss -> Carried forward
2027: €25,000 gain - €25,000 CF loss = €0
2028: €20,000 gain - €5,000 CF loss = €15,000
After exemption: €5,000 x 10% = €500
Total tax paid: €500
Same net: €15,000 gain, €500 tax
Tax efficiency loss: €2,000. Over the three years, the investor's cumulative net gain is €15,000 (€50,000 gains minus €35,000 losses). In a system with loss carryforward, tax would only be payable on this net amount less the exemption. Under Belgian rules, the investor pays €2,500 despite having suffered substantial losses in 2026. The €30,000 loss in 2026 provided zero tax benefit because there were insufficient gains that year to offset.
Example: Category Separation Impact
This example shows how the no-carryforward rule interacts with the requirement for separate category treatment between normal and speculative gains.
2026 Tax Year
Normal Management
Gains: €8,000
Losses: €0
Net: €8,000
Speculative
Gains: €2,000
Losses: €15,000
Net: -€13,000
The €13,000 speculative loss cannot offset the €8,000 normal gain (different categories), and cannot be carried forward to future years. Even if the investor realises €20,000 in speculative gains in 2027, the 2026 loss provides no tax relief. This underscores the importance of timing loss realisation to coincide with gains in the same category and same tax year.
Strategic Implications of No Carryforward
Tax Planning Considerations
- • Only realise losses when you have gains to offset in the same year and category
- • Assess unrealised gains and losses before 31 December to optimise offsetting
- • Holding a losing position into a year with expected gains may be more tax-efficient
- • Ensure losses and gains are in the same category (normal or speculative)
Common Mistakes to Avoid
- • Realising losses in a year with no gains, wasting the tax benefit
- • Assuming losses will reduce future tax bills (they will not)
- • Mixing categories when planning tax loss harvesting
- • Not considering the €10,000 exemption when timing loss realisation
- • Failing to coordinate across multiple brokerage accounts
International Comparison: Loss Carryforward Rules
Belgium's prohibition on loss carryforward is relatively strict compared to other major jurisdictions. This comparison illustrates why Belgian investors must be particularly careful with timing.
| Jurisdiction | Carryforward | Duration | Notes |
|---|---|---|---|
| Belgium | Not Allowed | N/A | Losses expire at year-end |
| Germany | Allowed | Indefinite | Separate pools for different asset types |
| Netherlands | N/A | N/A | Box 3: wealth tax system, no CGT |
| France | Allowed | 10 years | Can offset future capital gains |
| United Kingdom | Allowed | Indefinite | Must be claimed within 4 years |
| United States | Allowed | Indefinite | $3,000/year can offset ordinary income |
Note: This comparison is for general informational purposes. Rules may vary by specific circumstances and are subject to change. Always consult local tax legislation for current requirements.
2.5 Broker Withholding and Declaration Options
Belgian financial institutions will implement automatic withholding of capital gains tax effective 1 July 2026. Investors who prefer to self declare must formally opt out before 30 June 2026. The choice between withholding and self declaration has significant practical implications.
Broker Withholding (Default)
- • Tax withheld automatically at point of sale
- • No separate declaration required
- • €10,000 exemption applied per broker
- • No consolidation across multiple accounts
- • May result in overpayment if using multiple brokers
Self Declaration (Opt Out)
- • Declare via annual tax return (Tax on Web)
- • Single €10,000 exemption across all accounts
- • Full loss offset across brokers
- • Payment due with annual tax settlement
- • Requires careful record keeping
Opt Out Recommendation
Investors with multiple brokerage accounts should generally opt out of broker withholding. The per broker exemption system means that each broker applies a separate €10,000 exemption, potentially resulting in less advantageous tax treatment than a consolidated return.
Additionally, losses realised at one broker cannot offset gains at another under the withholding system.
2.6 Foreign Currency Securities: Conversion and Tax Implications
Belgian investors frequently hold securities denominated in foreign currencies, particularly US dollars (for American equities and ETFs), British pounds (for UK equities) and Swiss francs (for Swiss equities). The treatment of currency gains and losses is a critical aspect of capital gains taxation that is often misunderstood. Under Belgian tax law, the capital gain or loss must be calculated in euros, which means currency fluctuations between acquisition and disposal dates directly affect the taxable result.
The European Central Bank (ECB) reference exchange rate on the settlement date of each transaction is the authoritative rate for conversion purposes. This applies to both the acquisition (to determine cost basis in euros) and the disposal (to determine proceeds in euros).
It is important to note that currency movements can transform a gain in the original currency into a loss in euros, or vice versa. A position that shows a profit when measured in US dollars may show a loss when converted to euros if the dollar has depreciated against the euro during the holding period. Conversely, a loss in dollar terms may become a gain if the dollar has appreciated sufficiently.
Currency Conversion Methodology
Step 1: Convert Acquisition Cost to EUR
On the settlement date of each purchase, convert the total acquisition cost (including commissions) from the foreign currency to EUR using the ECB reference rate. This EUR amount becomes the cost basis for that lot.
Step 2: Convert Disposal Proceeds to EUR
On the settlement date of the sale, convert the net proceeds (after commissions) from the foreign currency to EUR using the ECB reference rate for that date.
Step 3: Calculate Gain or Loss in EUR
The taxable gain or loss equals EUR proceeds minus EUR cost basis. This single calculation captures both the underlying asset performance and the currency effect. No separate currency gain/loss is calculated.
Example A: Currency Gain Amplifies Profit
US stock purchased when EUR/USD was 1.10, sold when EUR/USD was 1.05 (dollar strengthened)
Acquisition
Disposal
The dollar appreciation added 5.2 percentage points to the return when measured in euros.
Example B: Currency Loss Reduces Profit
US stock purchased when EUR/USD was 1.05, sold when EUR/USD was 1.15 (dollar weakened)
Acquisition
Disposal
The dollar depreciation absorbed most of the USD gain, reducing the taxable profit in euros.
Example C: Currency Movement Creates Loss Despite Asset Gain
This example demonstrates how a small gain in the underlying asset can become a loss when the currency moves unfavorably.
Acquisition
Disposal
Tax Result
This €583.79 loss can offset other gains in the same year.
BelgianTaxCalculator ensures your gains and losses due to FX changes are properly accounted for.
Foreign Currency Dividend Treatment
Dividends received in foreign currencies must be converted to EUR for Belgian tax purposes. The conversion uses the ECB reference rate on the dividend payment date. Both the gross dividend amount and any foreign withholding tax are converted at this rate.
Example: US Dividend in Dollars
ECB Reference Exchange Rates
The ECB publishes reference exchange rates daily at approximately 16:00 CET. These rates are the authoritative source for Belgian tax calculations. Belgian Tax Calculator automatically retrieves and applies the correct ECB rate for each transaction settlement date.
Source
European Central Bank
Publication Time
~16:00 CET daily
Section 3: Dividend Taxation
Roerende Voorheffing and Foreign Withholding
3.1 Belgian Withholding Tax (Roerende Voorheffing)
Roerende voorheffing (RV) constitutes the Belgian withholding tax on investment income including dividends, interest and certain capital distributions. The standard rate applicable to dividends is 30%, levied on the net amount received after deduction of any foreign withholding tax. This tax is final and liberating (bevrijdende roerende voorheffing), meaning that dividend income subject to RV need not be reported on the annual tax return unless the taxpayer wishes to claim the €833 exemption.
Belgian financial institutions automatically withhold RV on dividend payments. For dividends received through foreign brokers, the broker may withhold RV if they maintain a Belgian fiscal representative. Otherwise, the dividend income must be declared on the annual tax return with RV paid through the assessment.
Standard RV Rate
30%
Applied to net dividend after foreign WHT
Annual Exemption
€833
Reclaimable via annual tax return
Maximum Refund
€249.90
30% of €833 exemption
Dividend Tax Calculation Examples
Belgian Dividend (€100 gross)
Effective tax rate: 30.00%
US Dividend (€100 gross, with W-8BEN)
Effective tax rate: 40.50%
3.2 Foreign Dividend Taxation and Treaty Rates
Belgium has concluded double taxation agreements with numerous countries that establish reduced withholding tax rates for cross-border dividend payments. To benefit from these reduced rates, investors must typically provide their broker with the appropriate tax residency documentation.
| Country | Foreign WHT | Belgian RV | Effective Rate | Documentation |
|---|---|---|---|---|
| Belgium | 0% | 30% | 30.00% | None required |
| United States | 15% | 30% | 40.50% | W-8BEN form (renew every 3 years) |
| United Kingdom | 0% | 30% | 30.00% | UK abolished dividend WHT |
| Germany | 26.375% | 30% | 48.49% | Reclaim form for excess WHT |
| France | 12.8% | 30% | 38.96% | FTK/QFIE credit claimable |
| Netherlands | 15% | 30% | 40.50% | Standard treaty rate |
| Switzerland | 15% | 30% | 40.50% | 35% reduced to 15% via treaty; excess reclaimable |
| Ireland | 25% | 30% | 47.50% | DWT refund via Irish Revenue |
| Canada | 15% | 30% | 40.50% | NR301 form recommended |
W-8BEN Form for US Dividends
The W-8BEN (Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding) certifies your non-US tax residency and entitles you to the reduced 15% treaty withholding rate on US dividends. Without a valid W-8BEN on file, US dividend paying agents will withhold the statutory 30% rate.
Validity Period
3 years from signature date
Submission
Via broker platform or mailed to broker
Tax Saving
15 percentage points on US dividends
FTK/QFIE Credit for French Dividends: Detailed Mechanics
The Forfaitaire buitenlandse belasting (FTK), also known as Quotite Forfaitaire d'Impot Etranger (QFIE) in French, represents a mechanism whereby Belgian tax residents may obtain partial relief from double taxation on dividends received from French companies. This credit system is particularly advantageous because Belgium permits a credit of up to 15% of the gross dividend amount, while France typically withholds only 12.8% for Belgian residents under the double taxation treaty. This creates an effective over crediting situation that reduces the overall tax burden below what would otherwise apply.
To claim the FTK credit, report the French dividend income on your annual tax return using the specific codes for dividends subject to foreign withholding tax. The tax administration will calculate the credit and apply it against your Belgian tax liability.
If your Belgian broker has already withheld roerende voorheffing on French dividends, you can claim the FTK credit on top of the standard €833 dividend exemption. This means your total tax benefit can exceed €833, as the FTK credit provides an additional refund of over-withheld Belgian tax.
BelgianTaxCalculator automatically optimizes the combination of exemptions and credits to maximize your benefit and minimize your tax burden.
FTK Credit Calculation Methodology
Step 1: Determine Gross Dividend Amount
The gross dividend is the amount declared by the French company before any withholding tax deductions. This is the dividend amount per share multiplied by the number of shares held on the record date. For dividends paid in EUR, this is straightforward. For dividends paid in other currencies, convert to EUR using the ECB reference rate on the payment date.
Step 2: Calculate French Withholding Tax
France applies a 12.8% withholding rate on dividends paid to Belgian residents under the Franco-Belgian tax treaty. This rate applies when your broker has correctly applied the treaty rate. Without treaty relief, France would withhold 30%. Verify your broker statement shows the 12.8% treaty rate was applied.
Step 3: Calculate Belgian Roerende Voorheffing Base
Belgian RV is calculated on the net dividend received (gross minus French WHT). This means RV applies to 87.2% of the gross dividend (100% - 12.8%). The RV rate is 30%, so effective RV is 30% x 87.2% = 26.16% of gross dividend.
Step 4: Determine FTK Credit Amount
The FTK credit equals 15% of the NET dividend (after French WHT). On €100 gross: net = €87.20, FTK credit = 15% × €87.20 = €13.08. There is no cap on this credit - you receive the full 15% of net regardless of French WHT paid.
Taxpayers can either (1) apply the €833 dividend exemption to French dividends, receiving the full 30% Belgian WHT exemption, or (2) claim the FTK credit instead, receiving only 15% credit but preserving the €833 exemption for other (non-treaty) dividends. The optimal strategy depends on your dividend portfolio composition. BelgianTaxCalculator automatically determines the best allocation to minimize your overall tax burden.
Step 5: Calculate Net Tax Burden
Net tax = French WHT + Belgian RV - FTK Credit. With FTK optimization: 12.8% + 26.16% - 13.08% = 25.88% effective rate. Compare to standard Belgian dividend taxation of 30%, or to US dividend taxation of 40.50% (15% US WHT + 25.5% Belgian RV on remaining 85%).
Example A: TotalEnergies Dividend
Holding: 200 shares TotalEnergies (FR0000120271)
Dividend per share: €0.79 (Q1 2026)
Effective tax rate: 25.88%
Example B: LVMH Annual Dividend
Holding: 15 shares LVMH (FR0000121014)
Dividend per share: €13.00 (final 2025)
Effective tax rate: 25.88%
Why French Dividends Are Tax Advantaged
The FTK credit mechanism makes French dividends among the most tax efficient foreign dividend sources for Belgian investors. The effective tax rate of 25.88% compares favorably to:
US Dividends
40.50%
No credit available
Belgian Dividends
30.00%
No foreign WHT
French Dividends
25.88%
With FTK credit
Other Countries Eligible for FTK Credit
The FTK credit is not limited to French dividends. Belgian tax law permits the credit for dividends from countries with which Belgium has concluded a double taxation agreement that provides for such relief. The credit equals 15% of the net dividend (after foreign WHT).
| Country | Treaty WHT | FTK Credit | Effective Rate | Notes |
|---|---|---|---|---|
| France | 12.8% | 12.8% | 25.88% | Full credit available |
| Netherlands | 15% | 15% | 25.50% | Full credit available |
| Germany | 26.375% | 15% | 33.49% | Partial credit; excess WHT lost |
| Luxembourg | 15% | 15% | 25.50% | Full credit available |
| Italy | 15% | 15% | 25.50% | Full credit available |
| United States | 15% | 0% | 40.50% | FTK not available for US dividends |
3.3 Annual €833 Dividend Exemption: Complete Guide
Belgian tax legislation provides an annual exemption of €833 on dividend income from qualifying shares. This exemption mechanism allows Belgian tax residents to recover some or all of the roerende voorheffing (withholding tax) paid on dividends during the year. The exemption is not automatic and must be proactively claimed through the annual tax return. When correctly applied, the exemption results in a tax refund of up to €249.90 per person (30% of €833).
The exemption exists to encourage Belgian residents to invest in equities, particularly domestic and European companies. By reducing the effective tax burden on the first €833 of qualifying dividend income, the legislature aims to promote broader participation in equity ownership. The €833 threshold is subject to periodic indexation and has increased from earlier levels.
It is crucial to understand that the exemption applies to the gross dividend amount, not to the net amount received after withholding. Additionally, the exemption only covers dividends from qualifying instruments. Distributions from investment funds, ETFs and non-EEA companies do not qualify, making the composition of your dividend income portfolio directly relevant to the tax benefit available.
Household Composition and Exemption Amounts
The dividend exemption amount varies depending on household composition and filing status. Each taxpayer in the household may claim their own exemption, effectively multiplying the benefit for multi person households.
| Household Type | Number of Exemptions | Total Exempt Amount | Maximum Refund |
|---|---|---|---|
| Single taxpayer | 1 | €833 | €249.90 |
| Married couple (joint filing) | 2 | €1,666 | €499.80 |
| Legal cohabitants (wettelijk samenwonenden) | 2 | €1,666 | €499.80 |
| De facto cohabitants (feitelijk samenwonenden) | 1 each | €833 each | €249.90 each |
| Widow/widower in year of death | 2 | €1,666 | €499.80 |
Important Distinctions
- Married couples and legal cohabitants file a joint return and their dividend income is combined for exemption purposes. Each partner's €833 exemption can be used against the combined qualifying dividend income, regardless of which partner received the dividends.
- De facto cohabitants file separate returns and each can only claim exemption against their own dividend income. Dividends held in joint accounts should be allocated based on ownership percentage.
- Minor children's dividends are typically included in the parents' return. No separate exemption applies for minors.
- Year of marriage or legal cohabitation: For the year in which cohabitation begins, a joint return is filed for the full year and both exemptions apply.
Exemption Optimization Strategy
When you receive both qualifying and non-qualifying dividends, the order in which dividends are allocated to the exemption affects the net tax benefit.
Optimization Principle
The exemption provides a refund of 30% of the dividend amount (since RV is 30%). However, the real tax benefit depends on the effective rate paid on each dividend type. The optimization algorithm prioritizes claiming exemption on dividends where the effective tax rate is highest.
Belgian Dividends
30% RV, no foreign WHT
Full 30% refundable
French Dividends
25.88% effective (with FTK)
~26% refundable
German Dividends
48.49% effective
Only ~22% refundable*
*German dividend exemption only refunds the Belgian RV component (30% of net dividend after German WHT). The German WHT itself is not refunded through the Belgian exemption.
Suboptimal: Claim French First
Belgian dividends received: €600
French dividends received: €500
Total qualifying: €1,100
Exemption capacity: €833
French €500 claimed (25.88% rate)
Belgian €333 claimed (30% rate)
Belgian €267 NOT claimed (30% rate)
Refund: €130.80 + €99.90 = €230.70
€80.10 additional tax on unclaimed Belgian
Optimal: Claim Belgian First
Belgian dividends received: €600
French dividends received: €500
Total qualifying: €1,100
Exemption capacity: €833
Belgian €600 claimed (30% rate)
French €233 claimed (25.88% rate)
French €267 NOT claimed (25.88% rate)
Refund: €180.00 + €60.95 = €240.95
€69.87 additional tax on unclaimed French
Tax saving from optimization: €240.95 - €230.70 = €10.25. While small in this example, the optimization becomes more significant with larger dividend portfolios and higher value exemption claims.
How to Claim the Exemption
Tax Return Codes
Enter the gross amount of qualifying dividends received. The tax administration will automatically calculate the exemption and credit.
Required Documentation
- • Broker statements showing dividend payments
- • ISIN codes of dividend paying securities
- • Gross dividend amounts and dates
- • Foreign withholding tax amounts (if any)
- • Belgian RV withheld amounts
Comprehensive Exemption Calculation Example
A married couple (joint filing) receives the following dividends during 2026:
| Company | ISIN | Gross | Foreign WHT | Belgian RV | Qualifying? |
|---|---|---|---|---|---|
| KBC Group | BE0003565737 | €480 | €0 | €144 | Yes |
| AB InBev | BE0974293251 | €320 | €0 | €96 | Yes |
| TotalEnergies | FR0000120271 | €632 | €81 | €165 | Yes |
| ASML Holding | NL0010273215 | €280 | €42 | €71 | Yes |
| Apple Inc | US0378331005 | €145 | €22 | €37 | No (US) |
| iShares MSCI World | IE00B4L5Y983 | €95 | €0 | €29 | No (ETF) |
Exemption Calculation
Refund Calculation
Note: The couple slightly exceeds the €1,666 limit. Belgian Tax Calculator automatically prioritizes the highest rate dividends first, so the €46 overflow applies to Dutch dividends which have a lower effective rate after FTK credit.
3.4 ETF Dividend Treatment
The tax treatment of ETF distributions differs from direct share dividends. This distinction is important for portfolio construction and tax planning purposes.
Distributing ETFs
Distributing ETFs pay out dividends received from underlying holdings. These distributions are subject to Belgian RV at 30%. The distributions do not qualify for the €833 exemption as they represent fund distributions rather than direct share dividends.
Example: SPDR S&P 500 UCITS ETF (distributing) pays quarterly distributions subject to 30% RV.
Accumulating ETFs
Accumulating ETFs automatically reinvest dividends received from underlying holdings. No distribution is made to investors, meaning no immediate dividend taxation occurs. The reinvested dividends increase the ETF unit price and are effectively taxed as capital gains upon disposal.
Example: iShares Core MSCI World UCITS ETF (accumulating) reinvests all dividends; no RV payable until sale.
Let Us Handle Your Dividend Tax Optimization
Maximizing your dividend exemptions, FTK credits, and refunds requires complex calculations across multiple dividend types. BelgianTaxCalculator BelgianTaxCalculator automatically optimizes your tax strategy to minimize your burden and maximize your refunds.
Start Optimizing Your DividendsSection 4: Tax Attribution by Household Composition
How dividends and capital gains are split between partners
The attribution of investment income (dividends) and capital gains between partners depends on the household composition and applicable matrimonial regime. Belgian tax law distinguishes between several relationship types, each with distinct rules for how income is allocated between declarants on the joint tax return. Understanding these rules is essential for accurate tax reporting and optimization.
The attribution determines not only who declares the income but also who may claim the associated exemptions (€10,000 capital gains exemption, €833 dividend exemption). Incorrect attribution can result in tax penalties or missed optimization opportunities.
Alleenstaand (No Relationship)
| Portfolio Scenario | Dividends | Capital Gains | CG Exempt | DIV Exempt |
|---|---|---|---|---|
| Any portfolio (broker account on your name) | 100% You | 100% You | €10,000 | €833 |
No column 2 in tax return. All income and exemptions belong to the single declarant.
Gehuwd met Gemeenschap van Aanwinsten (Default Marriage Regime)
In the calendar year you marry, you are still taxed individually. No 50/50 split applies. Joint taxation with the fruits rule begins from the year after marriage.
| Portfolio Scenario | Dividends Declarant | Dividends Partner | CG Declarant | CG Partner | CG Exempt |
|---|---|---|---|---|---|
| Pre-marriage portfolioOpened and funded before marriage | 50% | 50% | 100% | 0% | €10,000 owner |
| Portfolio opened during marriageFunded with salary/communal income | 50% | 50% | 50% | 50% | €10,000 each |
| Joint account (both names)Opened together during marriage | 50% | 50% | 50% | 50% | €10,000 each |
| Inherited portfolioReceived via erfenis during marriage | 50% | 50% | 100% | 0% | €10,000 owner |
| Mixed: Pre-marriage + new purchasesEdge CaseSame account, some lots eigen, some gemeenschappelijk | 50% | 50% | 100% decl. pre-marriage lots 50/50 during-marriage lots | €10,000 each | |
The Fruits Rule (Art. 1405 BW): Under the default marriage regime, dividends (income FROM assets) are ALWAYS split 50/50, regardless of who owns the underlying shares. Capital gains (changes IN asset value) follow ownership: eigen vermogen gains go 100% to owner, gemeenschappelijk vermogen gains are split 50/50.
Gehuwd met Scheiding van Goederen (Marriage Contract)
| Portfolio Scenario | Dividends Declarant | Dividends Partner | CG Declarant | CG Partner | CG Exempt |
|---|---|---|---|---|---|
| Declarant's portfolioAny timing (pre or during marriage) | 100% | 0% | 100% | 0% | €10,000 |
| Partner's portfolioAny timing (pre or during marriage) | 0% | 100% | 0% | 100% | €10,000 |
| Joint account (50/50 ownership)Shared account, equal ownership | 50% | 50% | 50% | 50% | €10,000 each |
| Joint account (70/30 ownership)Shared account, custom ratio per agreement | 70% | 30% | 70% | 30% | €10,000 each |
Simplest regime: No fruits rule applies. No gemeenschappelijk vermogen exists. Everything follows strict ownership. Pre-marriage vs during-marriage timing is irrelevant. Both dividends and capital gains go to the owner of the assets.
Wettelijk Samenwonend (Legal Cohabitation)
| Portfolio Scenario | Dividends | Capital Gains | CG Exempt | DIV Exempt |
|---|---|---|---|---|
| Declarant's portfolioAlways scheiding van goederen by law | 100% Decl. | 100% Decl. | €10,000 | €833 |
| Partner's portfolioAlways scheiding van goederen by law | 100% Partner | 100% Partner | €10,000 | €833 |
| Joint account (both names)Account on both names (meerdere titularissen) | 50/50 | 50/50 | €10,000 each | €833 each |
Identical to Scheiding van Goederen in terms of attribution rules. The only difference: legal cohabitants DO get joint taxation (gezamenlijke aangifte) with column 1 and column 2, unlike feitelijk samenwonenden who file separately.
Feitelijk Samenwonend (De Facto Cohabitation)
De facto cohabitants are not legally recognized for tax purposes. Each partner files a completely separate tax return. There is no column 2, no joint exemptions and no attribution between partners. Each person declares only their own portfolio income and claims their own €10,000 capital gains exemption and €833 dividend exemption independently.
For joint accounts held by de facto cohabitants, dividends and capital gains should be allocated based on the ownership percentage documented in the account agreement.
Single
Wettelijk Stelsel
Scheiding v. Goederen
Wettelijk Samenwonend
Automatic Household Attribution
Correctly attributing investment income between partners is complex and varies by matrimonial regime. BelgianTaxCalculator BelgianTaxCalculator automatically handles the attribution rules and optimizes exemption allocation across your household.
Let Us Handle Your Tax AttributionKey Tax Deadlines for 2026
Important dates for Belgian investors
| Date | Event | Tax Type | Action Required |
|---|---|---|---|
| 1 January 2026 | Capital gains tax enters into force | CGT | Begin tracking cost basis for all transactions |
| Monthly | TOB declaration deadline | TOB | File TD-OB 01 by last business day of second month following transactions |
| 30 June 2026 | CGT broker withholding opt-out deadline | CGT | Elect self-declaration if preferred; otherwise automatic withholding applies |
| 15 July 2026 | Tax-on-Web filing deadline | All | Submit annual return including dividend exemption claims and CGT declarations |
| 28 February 2027 | DAC6 substantial shareholding report | CGT | Report holdings exceeding reporting thresholds |
Official Sources and References
Government Portals
Tax Filing
Documentation
Automate Your Belgian Tax Compliance
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Start FreeThis guide is provided for informational purposes only and does not constitute tax, legal or financial advice. Tax legislation is subject to change and individual circumstances vary. Consult a qualified tax advisor for advice specific to your situation. Information accurate as of February 2026.