Your wealth, clearly explained.
Box 3 rules change almost every year — and they affect your savings, investments and property differently. Whether you have a second home, an investment portfolio or substantial savings, we show you exactly how the wealth tax calculation works and build a strategy that minimises your tax. Personal fiscal consultancy from an experienced tax professional, from €249.

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Tax advice for savings and investments.
We make the tax rules around your savings and investments clear.
Box 3 strategic advice.
We give guidance on structuring your savings and investments as tax-efficiently as possible.
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Asset structuring.
We advise on how to structure your assets in the most effective way.
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Crypto.
We check whether crypto, NFTs or other alternative assets are reported correctly.
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Why 3,400+ people in the Netherlands trust us
Jan de Belastingman makes tax advice clear.
Four clear steps. No hassle. You provide the information, we take care of the rest.
We map your situation.
Need advice on a specific topic? We start by getting a clear picture of your situation. You securely upload your documents, so we have a complete overview.
Expert review.
Our tax professionals get straight to work, reviewing your situation and determining the best approach for you.
Strategic advice plan.
You receive a clear, structured report with clear answers to your questions. We explain the available options and their financial impact for you.
Personal follow-up.
We schedule a video call to go through the advice together, answer your questions, and help you decide on the next steps.

The four promises of Jan de Belastingman.
Whatever your situation is, we handle your taxes personally, carefully, and fast.
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Current Box 3 figures
Box 3 rules are updated regularly. Below are the current amounts and rates for your tax return.
Tax-free threshold 2025
EUR 57,684 p.p.
EUR 115,368 with fiscal partner. In 2026: € 59,357 per person (€ 118,714 with fiscal partner).
Savings return
1.37% (2025)
Notional return on bank savings. In 2026: 1.28%. Actual return is not used — you pay tax on this deemed return.
Investment return
5.88% (2025)
Notional return on investments and other assets. In 2026: 6.00%. Applies to stocks, crypto, real estate (not primary home).
Tax rate
36%
On the notional return above the threshold
Kerstarrest ruling
Dec 2021
Supreme Court ruled: old system violated property rights
New system
Postponed → 2028
Taxation on actual returns delayed until 2028
Sources: Dutch Tax Authority
Still have questions? We have answers.
No matter your tax question, Jan de Belastingman is here for you. Don't see your question? Get in touch .

Tax matters don't have to be complicated. We make sure you know exactly where you stand — and that you never pay more than necessary.
Luuk
Tax Specialist & Director
As the person ultimately responsible, Luuk leads our team of tax specialists and ensures the quality of every tax return and every piece of advice. With years of experience at leading firms, he knows exactly where the opportunities lie — and makes sure you benefit from them.