How Much Wealth Tax Do You Pay in 2025? Complete Guide + Calculation Tool (€27.50)
A complete, clear guide with calculation tool (€27.50)
Many people in the Netherlands wonder how much Box 3 tax they actually need to pay on their savings, investments, or other assets. With the rules changing almost every year, it can be difficult to understand what applies to your situation. That’s why we created this guide: clear, practical, and immediately useful.
With our professional Box 3 Tax Calculator (€27.50), you can determine your 2025 wealth tax in under one minute—without complex formulas or fiscal knowledge.
What falls under Box 3?
Box 3 covers all assets that make up your wealth, such as:
- savings
- investments
- second homes
- cryptocurrency
- other assets
Each year, the Dutch Tax Authority looks at your assets on January 1. That amount is compared to the tax-free allowance, and anything above that is taxed.
Why is the wealth tax changing?
In recent years, there has been much debate about the accuracy of the Box 3 system. The current method does not always align with the actual returns people earn on their assets. As a result, the government is developing a new Box 3 system based on real returns.
Until that new system is introduced, an interim method is used, with fixed (forfaitaire) return percentages per asset category.
Our calculator is fully updated with the 2025 Box 3 rules, ensuring you never pay too much—or too little.
How to calculate your Box 3 tax for 2025
The calculation consists of three steps:
1. Determine your total wealth
Add up all your assets and subtract any deductible debts.
2. Apply the tax-free allowance
A portion of your wealth is exempt from tax. Only the amount above this threshold is taxed.
3. Apply the forfaitaire return percentage
The government uses estimated return percentages for different asset categories, such as:
- savings
- investments
- real estate
The Box 3 tax is then based on these estimated returns, not on your actual earnings.
It may sound complex, but our calculator handles everything for you.
The Box 3 Tax Calculator: instant clarity (€27.50)
If you want to know exactly how much Box 3 tax you owe in 2025, our tool gives you immediate, accurate insight.
For €27.50, you receive:
- a complete calculation of your Box 3 position
- insight into the forfaitaire return
- the exact tax amount you must pay
- a step-by-step explanation of the calculation
- access to a professional tool normally used only by advisors
Ideal for anyone who wants certainty before filing their tax return.
👉 Use the Box 3 Tax Calculator on our website.
Who is this tool designed for?
- private investors
- savers
- owners of second homes
- individuals with multiple asset types
- wealth advisors
- anyone wanting a fast, reliable calculation without paying for a fiscal advisor
No tax knowledge is required—the tool does all the work.
Why THRES developed this tool
We assist individuals and investors daily with building wealth through savings, investments, and real estate. The one thing they all seek? Clarity.
With this tool, we aim to:
- provide insight
- prevent surprises
- help people make stronger financial decisions
Transparency and reliability are at the core of everything we do.
Frequently Asked Questions
Do I pay tax on my savings?
Yes, but only if your total wealth exceeds the tax-free allowance.
Is investing more tax-efficient than saving?
Often yes, because the forfaitaire return for investments is higher.
Do I need to report assets that fall under the exempt amount?
Yes, you must report them, but no tax is charged on them.
Will Box 3 change again in 2026?
Yes, the government plans to move to a system based on actual returns.
Conclusion
Box 3 taxation can seem complex, but with the right explanation—and the right tools—you can understand your position in under a minute.
👉 Calculate your 2025 wealth tax today (€27.50).
Immediate insight, no complication.
Do you need help with investing, wealth planning, or real estate?
THRES is here to support you every step of the way.
