Mortgage Interest Deduction Netherlands 2026: Complete Guide

If you own a home in the Netherlands with a mortgage, you're entitled to one of the country's most valuable tax benefits: hypotheekrenteaftrek (mortgage interest deduction). For many homeowners, this deduction saves €2,000 to €5,000 per year on their tax bill.

But the rules are complex, the maximum rate changes regularly, and missing key details can cost you hundreds of euros. This guide walks you through everything you need to know to claim your full mortgage interest deduction on your 2026 tax return.

What Is Hypotheekrenteaftrek?

Hypotheekrenteaftrek allows you to deduct the interest you pay on your mortgage from your taxable income. This applies only to loans used to buy, build, or renovate your main residence (eigen woning).

The deduction goes into Box 1 of your Dutch tax return, where your income from work and home ownership is taxed. The more interest you pay, the larger your deduction — and the lower your tax bill.

Who Qualifies for Mortgage Interest Deduction?

Not every mortgage qualifies. To claim hypotheekrenteaftrek in 2026, you must meet these requirements:

• Main residence: The property must be your primary home where you're registered at the municipality (gemeente)
• Eigenwoningschuld: The loan must be used to buy, build, renovate, or maintain your own home
• Repayment requirement: You must repay the mortgage in full within 30 years using an annuity or linear schedule
• Registration: The mortgage must be registered with the Kadaster (Dutch land registry)
• Maximum period: You can deduct interest for a maximum of 30 years from the moment you took out the loan

Maximum Deduction Rate in 2026

The Dutch government has been gradually reducing the maximum rate for hypotheekrenteaftrek. Here's the recent timeline:

In 2026, the maximum deduction rate is 36.97% — aligned with the highest income tax bracket in Box 1. This means even if you're in a higher bracket (e.g., 49.5%), your mortgage interest deduction maxes out at 36.97%.

How Much Can You Deduct?

The exact amount depends on three factors:

1. How much interest you paid in 2025 (for your 2026 tax return filing)
2. Your income tax bracket (up to the 36.97% maximum)
3. Your eigenwoningforfait (a notional rental value added back to your income)

Example Calculation

Let's say you paid €15,000 in mortgage interest in 2025, and you're in the 36.97% tax bracket:

• Mortgage interest paid: €15,000
• Minus eigenwoningforfait (est. €1,200): -€1,200
• Net deduction: €13,800
• Tax benefit (36.97%): €5,102

That's €5,102 back on your tax return — or €425 per month.

What Costs Can You Include?

You can deduct more than just monthly interest payments. The following costs can be added to your eigenwoningschuld and deducted over the life of your mortgage:

• Mortgage closing costs (afsluitkosten)
• Notary fees for the mortgage deed
• Valuation costs (taxatierapport)
• National Mortgage Guarantee (NHG) premium
• Bank guarantee fees
• Early repayment penalties from your previous mortgage

These one-time costs are added to your mortgage balance and deducted proportionally each year as interest.

Eigenwoningforfait: The Hidden Reduction

Here's the catch: the Belastingdienst adds a notional rental value (eigenwoningforfait) back to your income, which reduces your net deduction. This is calculated as a percentage of your home's WOZ value:

If your home has a WOZ value of €400,000, your eigenwoningforfait might be around €2,800. This reduces your net mortgage interest deduction by that amount.

How to Claim Your Deduction

Filing for hypotheekrenteaftrek is straightforward:

1. Gather your documents: Get your annual mortgage statement from your lender (usually sent in January or February)
2. Check your WOZ value: You received your WOZ-waardering from the municipality — keep it handy
3. File your tax return: Report your mortgage interest in Box 1 under "eigen woning"
4. Let the system calculate: The Belastingdienst will compute your net deduction and tax benefit
5. Receive your refund: If you overpaid tax through payroll, you'll get a belastingteruggave within 8-12 weeks

Special Situations

Renovations and Improvements

If you took out a loan to renovate or improve your home, the interest on that loan is deductible — but only if the work adds value to the property (e.g., new roof, insulation, extension). Regular maintenance (painting, minor repairs) doesn't qualify.

Buying With a Partner

If you bought your home with a partner (married or registered partnership), you can split the mortgage interest deduction between you. This can be strategic if one partner is in a higher tax bracket.

Moving House

When you sell your old home and buy a new one, there's a bridging period of up to 3 years where you can still deduct interest on both mortgages under certain conditions. Talk to a tax advisor if this applies to you.

Renting Out Part of Your Home

If you rent out a room through Airbnb or to a tenant, the portion of mortgage interest allocated to that rental income is not deductible under hypotheekrenteaftrek. It goes into Box 1 as business income instead.

Common Mistakes to Avoid

Even experienced homeowners make these errors:

• Forgetting to report closing costs: These are deductible but easy to miss
• Claiming interest on a second home: Only your main residence qualifies
• Not updating after refinancing: If you refinanced in 2025, report the new interest amount
• Deducting principal repayment: You can only deduct interest, not the amount you pay off the loan balance

How Hypotheekrenteaftrek Has Changed Over Time

Hypotheekrenteaftrek has been reduced significantly over the past decade to encourage homeowners to pay off their mortgages faster and reduce household debt. Key changes:

• 2013: Interest-only mortgages no longer qualify for new loans
• 2014-2031: Maximum deduction rate reduced by 0.5% per year (paused 2020-2022 due to COVID)
• 2024: Maximum rate stabilized at 36.97%

The deduction isn't going away, but it's less generous than it was 10-15 years ago.

Should You Pay Off Your Mortgage Faster?

With mortgage interest deduction, there's a trade-off:

• Pay off faster → Less interest paid, smaller deduction, but debt-free sooner
• Pay minimum → More interest paid, larger deduction, but longer debt burden

The math depends on your interest rate vs. the deduction benefit. If your mortgage rate is 2.5% and your deduction brings the effective cost down to 1.6%, it may make sense to invest extra money elsewhere instead of overpaying your mortgage.

FAQ

Can I deduct mortgage interest if I live abroad temporarily?
Yes, as long as the property remains your main residence and you're still registered there with the gemeente. If you rent it out while abroad, the rules change.

What if I bought my home in 2025 — can I still deduct the full year?
Yes, you can deduct interest from the date you took out the mortgage. If you bought in July, you'll deduct 6 months of interest on your 2026 return.

Do I need to report my mortgage every year?
Only in the first year. After that, the Belastingdienst pre-fills your mortgage information in your annual return. Always double-check it's correct.

Can I deduct interest on a loan from family?
Yes, but only if the loan is formally registered with the notary and Kadaster, has a written agreement, and follows arm's-length terms (market interest rate).

What happens if I sell my home mid-year?
You can deduct interest up to the date of sale. After that, no deduction — unless you bought a new home and qualify for the bridging rules.