Box 3: tax on your savings (and your business account)
Understand Box 3 wealth tax for freelancers. Learn the exempt threshold, the tax rate, why business money is Box 1 (not Box 3), and how to avoid the boxhopping trap.
As a freelancer, you pay income tax on your business profit (Box 1). But once you've set aside money for taxes and built a buffer, you also own savings—and the Dutch tax system taxes that wealth separately. Box 3 is the wealth tax, and understanding how it works (and when your business account does NOT count) can save you thousands in unnecessary tax. This guide explains the thresholds, rates, and the one trap you must avoid.
What is Box 3?
Box 3 is the Dutch wealth tax on private savings and investments. Unlike Box 1 (income from your business), Box 3 taxes the mere ownership of money and assets, whether or not they earn interest or returns.
Box 3 at a glance
If your private wealth (savings, stocks, property not used for business) exceeds the exempt threshold, you owe tax on the assumed return, whether or not you actually earn anything.
The exempt threshold: you don't pay tax on all your savings
The heffingsvrij vermogen (exempt wealth) is an annual threshold. In 2026, it's around €57,000 per person. Check the Belastingdienst website for the exact figure for your year, as it adjusts annually.
How it works:
- If your private wealth is below the threshold, you owe zero Box 3 tax
- If your private wealth exceeds it, you only pay tax on the amount above the threshold
Example:
- Your private savings: €80,000
- Exempt threshold: €57,000
- Taxable wealth: €80,000 – €57,000 = €23,000
- Estimated return rate: around 37% of €23,000 = ~€8,510
- Box 3 tax: around €3,000–€4,000 (depending on the tax bracket)
This is why the threshold matters so much for freelancers: once you've built a buffer, watch it carefully.
The Box 3 tax rate: it's not what you earn, it's what you "should" earn
The Dutch tax system doesn't actually tax your real investment returns in Box 3. Instead, the Belastingdienst applies a notional return rate—an assumed return based on your wealth. You pay tax on that assumed return, not on what you actually made.
The notional return is very generous in 2026
In 2026, the assumed return rate is around 37% of wealth above the threshold. This is lower than in previous years because interest rates are lower. However, this formula changes annually, so always check the current-year rate on the Belastingdienst website. The tax bill itself depends on your personal tax bracket, but the point is: Box 3 is a fixed tax on the assumption of returns, not on reality.
For most freelancers, this means a savings account earning 2% is taxed as if it earns 37%—a very heavy burden. This is one reason why savers and investors have pushed for Box 3 reform.
The critical distinction: business account vs. private savings
This is where most freelancers get confused: Money on your business bank account is NOT subject to Box 3. It is part of your ondernemingsvermogen (business assets) and falls under Box 1.
Business account money = Box 1 (no separate wealth tax)
If you keep your business profits in a dedicated business bank account (which we strongly recommend), that money is treated as part of your business—even if it's sitting idle. It is taxed as part of your business profit in Box 1, not as private wealth in Box 3.
Why this matters:
- You avoid paying the notional Box 3 wealth tax on your business buffer
- You keep the money off the tax radar as private savings
- But: you still have to account for it as profit in your income tax return
Private account money = Box 3 (if above the threshold)
The moment you move money from your business account to a personal savings account (or never separates it), it becomes private wealth and may be taxed under Box 3 if it exceeds the exempt threshold.
Keep your accounts separate to avoid double taxation
If you blur the line between business and private accounts, the Belastingdienst can argue that some of your savings are personal wealth (Box 3) rather than business assets (Box 1). This doesn't mean you pay more tax overall, but it can lead to disputes. The clean solution: maintain a dedicated business account and transfer only what you need to your personal account.
When does a private surplus trigger Box 3 tax?
You have a private surplus when your personal savings exceed the heffingsvrij vermogen. Here's when it matters:
- You've saved a large personal emergency fund: If you have €100,000 sitting in your personal savings account after taxes, that €43,000 above the threshold (€100,000 – €57,000) is taxed under Box 3.
- You've inherited money: Inheritances fall into Box 3 (unless they are a business asset, like a property used for your business).
- You've cashed out your business buffer to your personal account: If you're not actively separated, every euro above the threshold becomes Box 3 taxable.
- You've sold an asset and kept the proceeds: A private home sale or investment sale can create a windfall that pushes you over the threshold.
Most freelancers avoid Box 3 tax simply by keeping business money on the business account and not accumulating a huge personal savings account. But if you do build up substantial private wealth—say, a retirement buffer or an inheritance—Box 3 applies.
The boxhopping rule: you can't dodge it by moving money around
The boxhopping rule (wapperingsbesluit / box-hopping-regeling) prevents you from reclassifying income to pay lower tax.
In simple terms: if you move money around to try to avoid Box 3 tax—say, by shifting money back and forth between business and personal accounts to keep your personal savings artificially low—the Belastingdienst can step in and tax it anyway if the transaction looks artificial.
In practice, this rule rarely affects freelancers. It's more of a concern for investors or business owners moving large sums. As long as you have a clear, documented reason for moving money (e.g., "I withdrew €5,000 for personal living expenses"), you're safe.
Be honest about the reason for transfers
If you need to move money to your personal account, just be straightforward in your records: "Salary withdrawal for personal use" or "Emergency fund build-up." The tax authorities care about your intent, not the transaction itself. Suspicious timing or repeated transfers designed solely to avoid Box 3 could raise a red flag.
Practical strategies for freelancers
1. Use a business account for your buffer
The simplest way to avoid Box 3 tax: [keep your tax reserve and business buffer on a business bank account. It's not private wealth; it's part of your business.
2. Don't let private savings creep over the threshold unintentionally
If you know you're close to the €57,000 threshold and want to avoid Box 3 tax, consider:
- Paying yourself a larger salary withdrawal to keep personal savings low
- Investing in your business (which falls under Box 1, not Box 3)
- Making a charitable donation
3. Plan ahead if you build a large personal buffer
If you're intentionally building a large personal emergency fund, understand that once it exceeds the threshold, you'll owe Box 3 tax. Budget for it.
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Try it freeFAQ
Does my business account count toward the Box 3 threshold?
What if I have money in a business savings account that I am not using?
If I earn interest on my savings, do I pay both Box 3 and income tax on the interest?
How often does the heffingsvrij vermogen threshold change?
Box 3 is a wealth tax that catches many freelancers by surprise, but it's entirely avoidable if you keep your accounts separate and monitor your private savings. The key: business money stays on the business account (Box 1), private savings above the threshold pay Box 3. Once you understand the distinction, you can file your tax return with confidence. Ready to manage your taxes more strategically? ZZP Belasting helps you track your business assets, your buffer, and your tax liability all in one place.