About Belgian Tax Calculator
Made with ❤️ by Belgian Investors, for Belgian Investors.
Our Mission
We believe every Belgian investor deserves easy access to accurate tax calculations. Our mission is to demystify TOB, dividend taxes and the new capital gains regulations now in effect since 2026, so you can focus on what matters most: your investments.
Our Story
Born out of frustration with manual spreadsheets and complex tax rules, Belgian Tax Calculator was created to simplify your tax calculations.
Growing
Active Users
99.9%
Uptime
24h
Support Response
Our Values
The principles that guide everything we do
Security First
Your financial data is stored securely. We never share your information with third parties.
Accuracy
Our calculations are based on official Belgian tax rules and ECB exchange rates for precise results.
User-Focused
Built by investors, for investors. We understand your needs because we face the same challenges.
Belgian Expertise
Deep knowledge of Belgian tax laws including TOB, roerende voorheffing, and upcoming capital gains rules.
What We Offer
Comprehensive tax tools for Belgian investors
TOB Calculator
Automatic Belgian stock exchange tax (beurstaks) calculations
Capital Gains Tracking
FIFO cost basis tracking for the 2026 capital gains rules
Dividend Calculator
Track dividend income and calculate roerende voorheffing (withholding tax)
Multi-Broker Support
Import from all major brokers
ECB Exchange Rates
Official ECB rates for accurate currency conversion
PDF Reports
Professional tax reports ready for filing
W-8BEN Detection
Detect opportunities to reduce US dividend tax from 30% to 15%
FTK/QFIE Optimization
Automatic optimization for French and other European dividend exemptions
Tax Filing Guide
Step-by-step guide with Tax-on-Web codes for your tax return
Email Reminders
Get reminders for TOB payment deadlines so you're never late
Transaction History
Unlimited transaction history storage for tax purposes
Household Support
Double exemptions for married couples and legal cohabitants
GDPR Compliant
Your data is protected under EU privacy regulations
Support Within 24h
Get help when you need it. Our support team responds within 24 hours
Free to Start
Get started at no cost, with no credit card required for our free tier
Built by Belgian Investors
Belgian Tax Calculator was created by a team of Belgian investors and developers who were frustrated with the complexity of manual tax calculations. We built the tool we wished existed, and now we're sharing it with fellow Belgian investors.
As part of the Realboost family, we believe in empowering people to take control of their financial future. Belgian Tax Calculator was born from that mission: a practical solution built by investors who understand the unique challenges of Belgian tax compliance.
Curious about our broader vision on personal growth and financial independence?
Discover Realboost