Dutch tax estimates you can understand
Belastbaar turns Dutch tax rules into practical calculators with visible assumptions, source links and plain-language explanations.
We build for residents, expats and independent professionals who want a useful estimate without having to decode the tax system first.
Why we built Belastbaar
Dutch tax information is authoritative but often spread across official pages, tables and separate topics. Belastbaar brings supported calculations together and explains how an estimate was formed.
Our mission is simple: help people calculate Dutch taxes and understand the result.
How we work
Useful estimates with visible evidence
Use versioned tax parameters and documented official sources
Explain important inputs, assumptions and limitations
Keep Dutch and English journeys useful for their own audiences
Generate public research through reproducible data contracts
Show when a calculation is an estimate rather than an official outcome
Why clarity matters
Income tax is only one part of many financial decisions. Salary, benefits, housing, assets, vehicles and local taxes can each use different inputs and rules. Clear scope helps you choose the right calculator and interpret its result.
tax parameters and public datasets
methodology and official references
native Dutch and adapted English journeys
Our Values
Transparent by design
We show the important inputs, assumptions, precision and sources behind supported estimates.
Calculation quality
Our calculations use centralized tax data, automated source checks, and documented official references.
Clear and accessible
We explain technical concepts in plain language and build the calculators for keyboard, screen-reader and mobile use.
Political Independence
We provide objective information regardless of political views, focusing purely on facts and transparency.
A founder-led product
A founder-led product supported by software, automated tax-data checks, and transparent editorial processes.
Calculation software, automated tax-data checks, official sources and a documented editorial process
What you can expect
The public calculators remain available without a Premium subscription. We label estimates honestly, document updates and correct issues when we find them.
Belastbaar provides estimates and explanations, not official assessments, payslips, filing submissions or individual professional advice.