Degiro vs Bolero: Complete Tax Comparison for Belgian Investors (2026 Guide)

Introduction: Why Your Broker Choice Matters for Belgian Taxes

Choosing a broker is an important financial decision you will make as a Belgian investor. While most people focus on trading fees and user experience, the tax implications of your broker choice can have a far greater impact on your long term returns.

If you are reading this, you are probably trying to decide between two of the most popular options for Belgian investors: Degiro (a Dutch low cost broker) and Bolero (the investment platform of KBC Bank). Both have their strengths, but they handle Belgian taxes very differently.

Here is the reality that many Belgian investors discover too late: choosing a broker without understanding the tax implications can cost you hundreds of euros per year in unnecessary hassle, potential penalties and missed optimization opportunities.

In this comprehensive guide, we will compare Degiro and Bolero from every angle that matters for Belgian investors. We will cover trading fees, tax handling, market access and real world cost calculations. By the end, you will know exactly which broker (or combination of brokers) is right for your situation.

Looking for a quick answer? If you value convenience and automatic tax handling above all else, choose Bolero. If you want lower fees and are willing to handle some tax administration yourself, Degiro offers significant savings. Many savvy Belgian investors use both.

Understanding the Two Brokers

Bolero: The Belgian Banking Solution

Bolero is the online investment platform of KBC Bank, one of Belgium's largest financial institutions. Launched in 1999, it was one of the first online brokers in Belgium and has built a strong reputation for reliability and local support.

Key facts about Bolero:

• Owned by KBC Group (Belgian bank and insurance company)
• Regulated by the Belgian FSMA and National Bank of Belgium
• Deposits protected up to €100,000 under Belgian deposit guarantee
• Securities held in your name at the Belgian central securities depository
• Full integration with KBC banking services
• Customer support available in Dutch, French and English

Because Bolero is a Belgian broker, they have direct connections to Belgian tax authorities. This means they can handle most of your tax obligations automatically, which is a huge advantage for investors who want a hands off approach.

Degiro: The Dutch Low Cost Disruptor

Degiro launched in 2013 with a mission to make investing accessible to everyone through ultra low fees. Originally Dutch, Degiro was acquired by flatexDEGIRO AG (a German financial group) in 2020. Today, Degiro serves over 2.5 million customers across Europe.

Key facts about Degiro:

• Owned by flatexDEGIRO AG (German listed company)
• Regulated by the German BaFin and Dutch AFM
• Deposits protected up to €100,000 under German deposit guarantee
• Securities held in an omnibus account at a German custodian
• No Belgian banking integration
• Customer support available in multiple languages including Dutch and French

Degiro's main selling point is price. Their trading fees are among the lowest in Europe, which makes them particularly attractive for active traders and cost conscious investors. However, as a foreign broker, they cannot automatically handle Belgian taxes like TOB.

Trading Fees: The Numbers That Matter

Let us start with what most people look at first: trading fees. The difference between Degiro and Bolero is substantial.

Fee Structure Comparison (2026)

Note on Degiro fees: Degiro charges a €1.00 handling fee on most orders to cover clearing and settlement costs. This fee is waived for Core Selection ETFs on Tradegate.

Real Cost Comparison: Three Scenarios

Let us calculate the actual costs for three typical trading scenarios.

Scenario 1: Buying €5,000 of a Belgian stock (e.g., AB InBev)

Scenario 2: Buying €10,000 of a US stock (e.g., Apple)

Scenario 3: Monthly investment of €500 in IWDA ETF (12 months)

As you can see, Degiro is significantly cheaper for most trading activities. For an active investor making 50 trades per year, the savings could easily exceed €500 annually.

Want to calculate your potential savings? We have built a savings calculator that shows you exactly how much you could save by switching from a Belgian bank to a foreign broker combined with Belgian Tax Calculator. Try it and see your personalized savings estimate.

TOB (Beurstaks): The Critical Difference

This is where the broker comparison gets really interesting for Belgian investors. The Tax on Stock Exchange Transactions (TOB or "beurstaks" in Dutch) is a Belgian tax that applies to virtually all securities transactions.

How TOB Works

Every time you buy or sell stocks, ETFs, bonds or funds, you owe TOB to the Belgian government. The rates depend on the type of security:

Bolero: Automatic TOB Handling

When you trade with Bolero, they automatically calculate, withhold and pay your TOB to the Belgian tax authorities. You never have to think about it. The tax appears as a separate line item on your transaction confirmation, and Bolero handles all the paperwork.

Example: You buy €10,000 of IWDA ETF through Bolero.

• TOB rate: 0.12%
• TOB amount: €10,000 × 0.12% = €12.00
• Bolero withholds €12.00 and pays it to the government
• You see this on your confirmation and that is it

This automatic handling is worth its weight in gold for investors who do not want to deal with tax administration. You never risk forgetting a payment or making a calculation error.

Degiro: Manual TOB Declaration Required

Because Degiro is a foreign broker, they do not withhold or pay Belgian TOB. As a Belgian tax resident, you are legally required to:

1. Track all your taxable transactions
2. Calculate the TOB owed for each transaction
3. File a declaration with the Belgian tax authorities
4. Pay the tax before the deadline (last working day of the second month after the transaction month)

Example: You buy €10,000 of IWDA ETF through Degiro in January 2026.

• TOB rate: 0.12%
• TOB amount: €10,000 × 0.12% = €12.00
• Declaration deadline: End of March 2026
• Payment deadline: End of March 2026
• You must file via MyMinfin and transfer the money yourself

The Hidden Cost of Manual TOB

While Degiro saves you money on trading fees, managing TOB yourself has costs:

Time cost: Each declaration takes 15 to 30 minutes if you know what you are doing. For active traders making 50+ trades per year, this adds up to many hours annually.

Error risk: Make a calculation mistake and you could face penalties. The late declaration penalty is €50 per week (maximum €2,600). Incorrect declarations can result in penalties of 5 times the evaded amount (minimum €250). Note: the €50 per week penalty may be waived if you proactively contact the tax authorities before they contact you. However, it is always better to avoid this situation entirely by filing on time.

Stress factor: Many investors live in constant low level anxiety about whether they filed everything correctly. This psychological cost is real even if it does not show up on a spreadsheet.

Example of penalty risk: You forget to declare €15,000 of ETF purchases from March 2026.

• TOB owed: €15,000 × 0.12% = €18.00
• You discover the error 6 months later
• Late declaration penalty: €50 × 26 weeks = €1,300
• Interest: approximately €0.40 (civil law rate of 4.50%)
• Total cost: €1,318.40 for €18.00 of forgotten tax

This example shows why many investors prefer paying Bolero's higher trading fees in exchange for peace of mind.

Tired of manual TOB calculations? Import your Degiro transactions into Belgian Tax Calculator and we will calculate everything automatically. Our platform generates the official TOB declaration form ready for submission, provides detailed per transaction reports and gives you peace of mind that everything is handled correctly.

Dividend Tax Handling

Belgian investors pay 30% withholding tax ("roerende voorheffing") on dividends. How this is handled depends on both your broker and the country where the dividend originates.

Belgian Dividends

Both Degiro and Bolero handle Belgian dividends correctly. They withhold the 30% tax at source and you receive the net amount. There is no action required from you.

Example: You own 100 shares of KBC Group. KBC declares a dividend of €4.00 per share.

• Gross dividend: 100 × €4.00 = €400.00
• Withholding tax: 30% × €400.00 = €120.00
• Net dividend received: €280.00

Both brokers handle this identically.

Foreign Dividends (The Complicated Part)

Foreign dividends are where things get more complex. When a US company pays you a dividend, for example, both the US and Belgium want to tax it.

The typical US dividend flow:

1. US company declares $1.00 dividend per share
2. US withholds 15% (if you filed W-8BEN form) or 30% (if you did not)
3. Belgium applies 30% withholding tax on the remaining net amount
4. Total effective tax: approximately 40.5% (calculated as: you keep 85% after US tax, then Belgium takes 30% of that remaining 85%, leaving you with 59.5% of the original dividend)

Both Degiro and Bolero apply US withholding tax correctly if you have completed the W-8BEN form. However, the Belgian portion is handled differently.

Bolero: Applies the Belgian withholding tax automatically on foreign dividends.

Degiro: Also applies Belgian withholding tax on dividends, but you need to verify this is done correctly for each country.

The Dividend Exemption

Belgian tax law provides an annual exemption on dividend income. The exemption amount is €833 for tax year 2025 and €859 for tax year 2026. The exemption is indexed annually to inflation.

This means you can reclaim up to €249.90 per year (30% of €833 for 2025) or €257.70 (30% of €859 for 2026) of withholding tax on eligible dividends through your annual tax return.

Important: This exemption only applies to dividends from individual stocks. Dividends from ETFs, REITs and investment funds are NOT eligible.

Neither broker applies this exemption automatically. You must claim it yourself when filing your annual tax return through Tax on Web.

Market Access: Where Can You Invest?

The range of markets available differs significantly between the two brokers.

Degiro Market Access

Degiro offers access to over 50 exchanges worldwide:

• Europe: Euronext (Brussels, Amsterdam, Paris, Lisbon), Xetra (Germany), London Stock Exchange, SIX Swiss Exchange, Borsa Italiana, BME (Spain), OMX Nordic exchanges and more
• North America: NYSE, NASDAQ, Toronto Stock Exchange
• Asia Pacific: Tokyo Stock Exchange, Hong Kong Stock Exchange, Singapore Exchange, ASX (Australia)

This broad access is one of Degiro's biggest advantages. If you want to buy individual Japanese stocks or invest directly in Australian companies, Degiro makes this easy and affordable.

Bolero Market Access

Bolero focuses primarily on European and US markets:

• Europe: Euronext (Brussels, Amsterdam, Paris), Xetra (Germany), London Stock Exchange
• North America: NYSE, NASDAQ

While this covers the most popular markets for Belgian investors, you cannot access Asian exchanges or many smaller European markets through Bolero.

Practical Implications

For most Belgian investors following a passive index investing strategy (buying world ETFs like IWDA or VWCE), both brokers offer sufficient access. These ETFs are listed on Euronext Amsterdam and both brokers provide access.

However, if you want to:

• Buy individual Asian stocks
• Invest in Australian REITs
• Access Nordic small caps
• Trade on multiple international exchanges

Then Degiro is your only realistic option among these two.

Capital Gains Tax (New for 2026)

Starting January 1, 2026, Belgium introduced a capital gains tax on financial assets. This changes the broker comparison in important ways.

How the New CGT Works

Note on the speculative rate: The 33% rate applies when the tax authorities determine your trading activity is speculative in nature. This is not simply based on holding assets for less than one year. The assessment considers multiple factors including trading frequency, your professional background, the proportion of your wealth invested and other indicators of speculative intent. Most long term buy and hold investors will not be affected by this rate.

Broker Handling of CGT

Bolero: Belgian brokers can opt to withhold CGT automatically. Bolero offers this service, which means they track your cost basis and withhold tax when you sell at a profit.

Degiro: As a foreign broker, Degiro does not withhold Belgian CGT. You must:

• Track your own cost basis (using FIFO method for post-2026 purchases)
• Calculate gains and losses
• Report and pay CGT through your annual tax return

This is a significant additional administrative burden for Degiro users. The calculations are more complex than TOB because you need to track the purchase price of every position and apply the correct cost basis method.

Why This Matters for Your Broker Choice

If you hold positions acquired before 2026, there is a step up rule that protects your unrealized gains. Your cost basis becomes the higher of your actual purchase price or the market value on December 31, 2025. This means gains accumulated before 2026 are not taxed.

With Bolero: They handle this step up calculation automatically if you held the positions with them before 2026.

With Degiro: You need to document the December 31, 2025 value yourself and apply the step up rule manually when calculating future gains.

For more details on the capital gains tax, read our guide to Belgium's 2026 capital gains tax.

Security and Regulation

Both brokers are properly regulated, but the regulatory framework differs.

Bolero Security

• Regulated by Belgian FSMA and National Bank of Belgium
• Part of KBC Group (systemically important Belgian bank)
• Deposits protected up to €100,000 by Belgian deposit guarantee
• Securities held separately from bank assets (segregated)
• Falls under Belgian banking supervision

Degiro Security

• Regulated by German BaFin and Dutch AFM
• Part of flatexDEGIRO AG (German listed company)
• Deposits protected up to €100,000 by German deposit guarantee
• Securities held at a German custodian in an omnibus structure
• Subject to German and Dutch supervision

What This Means Practically

Both brokers offer adequate protection for retail investors. Your securities are legally yours and would not be lost if the broker went bankrupt.

However, some Belgian investors prefer Bolero because:

• Belgian regulator (easier to file complaints in Dutch or French)
• Part of a large Belgian bank they already know
• Simpler account structure

Others prefer Degiro because:

• German regulation is considered equally robust
• Part of a publicly listed company with transparent financials
• Lower counterparty risk concerns with a pure broker model

Tax Reporting and Documentation

Getting clear tax documentation is essential for Belgian investors. Let us compare what each broker provides.

Bolero Tax Documentation

Bolero provides Belgian specific tax reporting:

• Annual tax certificate: Summary of all dividends received and withholding tax paid
• TOB overview: Complete record of TOB paid (since they handle it automatically)
• Transaction history: Detailed export of all trades
• Cost basis reports: For capital gains calculations (in Belgian format)

These reports are designed for Belgian tax compliance and can often be used directly for your tax return.

Degiro Tax Documentation

Degiro provides generic European reporting:

• Annual report: Summary of portfolio, dividends and transactions
• Transaction export: CSV file with all trades (not specifically formatted for Belgian taxes)
• Dividend overview: List of dividends received and withholding taxes applied
• No TOB reports: Since they do not handle TOB, there is no TOB documentation

For Belgian tax purposes, you need to process Degiro's reports and convert them to Belgian requirements. This typically means:

1. Downloading the transaction CSV
2. Identifying which transactions are TOB taxable
3. Applying correct TOB rates
4. Converting currencies where needed
5. Preparing your own declaration

This is exactly what Belgian Tax Calculator automates. Import your Degiro data and get Belgian compliant tax reports in minutes instead of hours.

The Smart Strategy: Using Both Brokers

Many experienced Belgian investors do not choose between Degiro and Bolero. They use both strategically.

Recommended Setup

Use Bolero for:

• Belgian stocks (automatic TOB, local custody)
• European stocks you plan to hold long term
• Situations where you value simplicity over cost savings
• Your "core" portfolio that you rarely trade

Use Degiro for:

• US stocks (much lower fees)
• Active trading strategies (where fee savings are significant)
• International diversification (Asian, Australian markets)
• ETF investing using their free Core Selection

Example: Balanced Portfolio

Let us say you want to build a portfolio with:

• €20,000 in Belgian stocks (AB InBev, KBC, Sofina)
• €30,000 in world ETFs (IWDA)
• €10,000 in US tech stocks (Apple, Microsoft, Google)

Pure Bolero approach:

• Belgian stocks: €20,000 × 0.30% = €60 in fees
• World ETFs: 12 purchases of €2,500 = €90 in fees
• US stocks: €10,000 at €15 + 0.15% = €30 in fees
• Currency conversion: €10,000 × 1.00% = €100
• Total fees: €280

Hybrid approach (Bolero for Belgian, Degiro for ETFs and US):

• Belgian stocks (Bolero): €20,000 × 0.30% = €60 in fees
• World ETFs (Degiro Core Selection): €0 in fees
• US stocks (Degiro): €10,000 at €1 = €1 in fees
• Currency conversion (Degiro): €10,000 × 0.25% = €25
• Total fees: €86

Annual savings: €194

Over 10 years, assuming similar trading patterns, this strategy saves nearly €2,000 in fees alone.

How to Import Your Data into Belgian Tax Calculator

Whether you use Degiro, Bolero or both, Belgian Tax Calculator supports importing your transaction data for tax calculations.

Importing from Degiro

1. Log into Degiro and go to "Inbox" then "Reports"
2. Download your "Account Statement" as a CSV file
3. Go to belgiantaxcalculator.be/dashboard/import
4. Select "Degiro" as your broker
5. Upload your CSV file
6. Review the imported transactions
7. Generate your TOB declaration or capital gains report

Importing from Bolero

1. Log into Bolero and go to "My Portfolio" then "Transactions"
2. Export your transaction history
3. Go to belgiantaxcalculator.be/dashboard/import
4. Select "Bolero" as your broker
5. Upload your file
6. Review the imported transactions

Even though Bolero handles TOB automatically, importing your data helps you track your complete tax picture including capital gains and dividend exemption optimization. When generating TOB reports, you can exclude transactions from brokers that already handle TOB automatically (like Bolero). This way you have a complete overview of all your investments while only reporting and paying what has not been paid yet.

Key Takeaways

The winning combination: Degiro + Belgian Tax Calculator

For most Belgian investors, using Degiro combined with Belgian Tax Calculator offers the best of both worlds: ultra low trading fees AND automated tax compliance. This combination can save you hundreds to thousands of euros per year compared to using a Belgian bank like Bolero. Use our savings calculator to see your personalized savings estimate.

Choose Bolero if:

• You value maximum convenience and prefer not to use any external tools
• You primarily invest in Belgian stocks where the fee difference is smaller
• You are willing to pay significantly higher fees for complete automation

Choose Degiro + Belgian Tax Calculator if:

• You want the lowest possible total cost (trading fees + tax compliance)
• You invest in ETFs (free Core Selection on Degiro) or US stocks (much lower fees)
• You want automated TOB declarations and official forms without the high broker fees
• You trade regularly and fee savings compound significantly over time

Use both brokers if:

• You want Bolero for your Belgian stock holdings (automatic TOB) and Degiro for everything else (lower fees)
• You can manage multiple accounts and want maximum flexibility

Frequently Asked Questions

Is Degiro legal to use in Belgium?

Yes, absolutely. Degiro is authorized to provide services in Belgium under EU passporting rules. They are regulated by the German BaFin and Dutch AFM. As a Belgian resident, you are legally allowed to use any EU broker. However, you remain responsible for Belgian tax obligations like TOB and capital gains tax.

Does Bolero report my accounts to the Belgian tax authorities?

Yes. As a Belgian broker, Bolero reports account information to Belgian tax authorities. This includes your account balance, dividends received and transactions. This is automatic and you do not need to separately declare your Bolero account. With Degiro, you must declare your foreign account yourself via the CAP (Centraal Aanspreekpunt) at the National Bank of Belgium.

What happens if I forget to pay TOB on my Degiro trades?

You risk penalties. Late declaration carries a penalty of €50 per week (maximum €2,600). If you actively evade TOB, penalties can reach 5 times the evaded amount. Interest also accrues at the civil law rate (4.50% in 2026). Our advice: use a tool like Belgian Tax Calculator to calculate your obligations accurately.

Can I transfer my portfolio from Degiro to Bolero or vice versa?

Yes, both brokers support incoming transfers. However, there are fees involved (typically €10 to €50 per position) and the process takes several weeks. More importantly, transferring resets your broker's knowledge of your cost basis, which complicates capital gains calculations. If you transfer, make sure to keep detailed records of your original purchase prices.

Which broker has better customer support for Belgian investors?

Bolero has an advantage here. Their support is available in Dutch and French with local Belgian phone numbers. Issues can typically be resolved quickly because they understand Belgian specific tax questions. Degiro's support is competent but more generic. For complex Belgian tax questions, Degiro support may not have the expertise.

Do I need to declare my Degiro account to the National Bank of Belgium?

Yes. As a Belgian resident with a foreign securities account, you must declare this to the CAP (Centraal Aanspreekpunt) at the National Bank of Belgium. You must also indicate the existence of this account on your annual tax return (checkbox in Part 13). Failure to declare can result in penalties.

Which broker is better for ETF investing?

For pure cost, Degiro wins with their free Core Selection (which includes popular ETFs like IWDA, VWCE and EMIM). However, you must handle TOB yourself. If you prefer automatic tax handling, Bolero is simpler but costs €7.50+ per trade. Many Belgian investors use Degiro for ETF accumulation due to the significant fee savings.

How does the new capital gains tax affect my broker choice?

The 2026 capital gains tax adds complexity for Degiro users since foreign brokers do not withhold Belgian CGT. You must track cost basis and report gains yourself. Bolero can handle CGT withholding automatically if you opt in. For investors with large portfolios or complex trading patterns, Bolero's automatic handling may justify the higher fees.

Can I use Belgian Tax Calculator with both brokers?

Yes. Belgian Tax Calculator supports importing from both Degiro and Bolero. You can import from multiple brokers into the same account to get a complete picture of your tax obligations across all your investments.

What about dividends from US stocks? Is there a difference?

Both brokers apply US withholding tax correctly if you complete the W-8BEN form (15% instead of 30%). Both also apply Belgian withholding tax on the remaining amount. The main difference is fees: Degiro charges 0.25% for currency conversion while Bolero charges 1.00%. For dividend focused US portfolios, this 0.75% difference matters.

Is my money safe with Degiro?

Yes. Degiro is part of flatexDEGIRO AG, a publicly listed German financial company. Your cash is protected up to €100,000 by the German deposit guarantee scheme. Your securities are held separately from company assets and would remain yours even if Degiro went bankrupt. Both brokers offer equivalent investor protection.

Which broker should I choose as a complete beginner?

If you are new to investing and Belgian taxes feel overwhelming, start with Bolero. The automatic TOB handling removes a major compliance burden. Once you understand how Belgian investment taxation works (perhaps after a year with Bolero), you can consider adding Degiro for cost optimization.

References and Official Sources

1. Belgian TOB Rates and Rules FOD Financien - Taks op Beursverrichtingen https://fin.belgium.be/nl/particulieren/internationaal/buitenlandse-inkomsten-rekeningen/taks-beursverrichtingen

2. Degiro Fee Schedule Degiro Official Tariff Page https://www.degiro.nl/tarieven

3. Bolero Fee Schedule Bolero by KBC Official Tariffs https://www.bolero.be/nl/tarieven

4. Belgian Dividend Tax Exemption FOD Financien - Vrijstellingen Dividenden https://fin.belgium.be/nl/particulieren/belastingvoordelen/vrijstellingen-dividenden

5. CAP Foreign Account Declaration National Bank of Belgium - Centraal Aanspreekpunt https://www.nbb.be/nl/centraal-aanspreekpunt

6. W-8BEN Form for US Dividends IRS Form W-8BEN Instructions https://www.irs.gov/forms-pubs/about-form-w-8-ben

Related Articles

• Belgian TOB Guide 2026: Complete Overview
• Belgium's 2026 Capital Gains Tax Explained
• Understanding TOB Rates for ETFs: 0.12% vs 1.32%

Last updated: December 2025

This guide is for informational purposes only and does not constitute tax advice. For complex situations, consult a Belgian tax professional.