Personal tax deductions and benefits in Belgium 2026: what you can really claim

Last reviewed: November 2026 · Reviewed by Stéphane Gombauld, tax expert, technologist and digital nomad

You earn in Belgium and your tax bill looks high. It is: the 50% band starts just above EUR 49,840. This guide lists every deduction, allowance and tax reduction that an employee, freelancer or director can actually claim in 2026, how much each one is worth, and which ones are lost if you are a non-resident or leave mid-year.

Belgium personal deductions and benefits in 2026: the key figures

Is this guide for you?

Read on if you…

• are a Belgian resident employee, freelancer or company director and want to claim everything you are entitled to
• moved to Belgium in 2026 and want to know which allowances apply to a part-year
• are a non-resident with Belgian income and want to know whether you get any allowances at all

Probably not your case if you…

• are taxed in Belgium only through the 30% withholding tax on dividends or interest (no return, no deductions)
• are under the inbound taxpayer regime and only want the expat rules (see our expat guide instead)

How does the Belgian tax calculation work before any deduction?

Belgium taxes residents on worldwide income at progressive rates: 25% up to EUR 16,320, 40% to EUR 28,800, 45% to EUR 49,840 and 50% above (income year 2025 bands, indexed for 2026). On the result, your commune adds a surcharge of 0% to 9%, about 7% on average.

Three different mechanisms lower that bill, and they are not worth the same:

1. Deductions from income (professional expenses, social contributions, alimony) reduce taxable income. For a 50%-band earner, EUR 1,000 deducted saves EUR 500 plus surcharge.
2. Tax-free allowances (the basic allowance and child increases) exempt a slice of income at the bottom bands, so EUR 1,000 of allowance saves EUR 250 to EUR 400.
3. Tax reductions (pension savings, childcare, donations) cut the tax itself by a fixed percentage of what you spent, regardless of your band.

Good news: the first two apply automatically. The third group only works if you fill in the right codes and keep the certificates.

Which deductions can everyone claim?

The tax-free allowance and family increases

Every resident gets a basic allowance of EUR 10,910 (income year 2025; indexed for 2026). The allowance rises with each dependent child: EUR 1,980 for one child, EUR 5,080 for two, EUR 11,380 for three and EUR 18,400 for four, plus EUR 7,020 for each further child. Dependants must live in your household on 1 January 2027 and have limited own income.

Professional expenses: flat or actual

Employees and self-employed people deduct a flat 30% of their income for professional expenses, capped at EUR 5,930 (income year 2025). Company directors get 3%, capped at around EUR 3,030. If your real costs are higher, you deduct actual costs instead: home office share of rent, equipment, software, travel, professional training. Honestly? For most freelancers with a dedicated workspace, actual costs win. See business expenses in Belgium for what the tax office accepts.

Social security contributions

Employee contributions (13.07%) are deducted before tax at source. Self-employed contributions, roughly 20.5% of net professional income up to a ceiling of about EUR 76,000 and 14.16% up to a second ceiling, are fully deductible in the year paid. So are premiums for a self-employed supplementary pension (VAPZ/PLCI), up to 8.17% of income with a cap of about EUR 4,000.

Alimony

Maintenance you pay under a court order or legal obligation is 80% deductible, with no cap, as long as the recipient is not part of your household.

Which tax reductions are worth claiming?

Two more "benefits" matter for location-independent professionals:

• Investment income exemptions. The first EUR 859 of dividends and the first EUR 1,050 of regulated savings interest per person are exempt from the 30% withholding tax (income year 2025, indexed). The dividend exemption must be claimed back through the return. From 2026 the new capital gains tax also carries a EUR 10,000 annual exemption; see capital gains tax in Belgium.
• Copyright income. Income from transferring copyright on creative work is taxed at 30% on a reduced base (after flat cost deductions of 50% and 25%), up to an annual ceiling of about EUR 73,000. Developers were largely excluded by the 2023 reform.

What about couples, home loans and the marital quotient?

Marital quotient. If one partner earns little, up to 30% of the couple's professional income, capped at EUR 13,460, is attributed to the lower earner and taxed in their lower bands. It can be worth over EUR 3,000 a year. The 2025 coalition agreement announced a gradual phase-out for non-pensioners starting in 2026.

Home loans. The federal housing bonus is gone for new loans: Brussels abolished it in 2017, Flanders in 2020 and Wallonia replaced its chèque habitat and then closed it to new loans. Loans signed before those dates keep their old regime. Buying a home is helped on the registration-duty side instead: see specific taxes in Belgium.

Non-residents. You get the allowances, child increases and tax reductions only if at least 75% of your worldwide professional income is taxable in Belgium. Below that line you keep the professional-expense deduction and social contributions, but lose the basic allowance and the reductions. Read tax residency in Belgium before you decide where to base yourself.

Part-year residents. If you arrive or leave in 2026, the allowances and bands are reduced in proportion to the months you were resident.

Common mistakes (and what they cost)

• Taking the flat expense rate without checking. A freelancer with EUR 9,000 of real costs who ticks the flat rate loses about EUR 3,000 of deduction, EUR 1,500 of tax at the 50% band.
• Forgetting the dividend exemption. The 30% withholding on the first EUR 859 of dividends is only refunded if you claim it in the return. That is up to EUR 258 lost every year.
• Not keeping childcare and donation certificates. No certificate, no reduction.
• Over-funding pension savings. Paying EUR 1,200 gets you 25% on EUR 1,200 (EUR 300), not 30% on EUR 1,050 (EUR 315). Stay at EUR 1,050 or go to EUR 1,350.
• Assuming non-residents get nothing or everything. Below the 75% threshold, you lose the basic allowance, worth about EUR 2,700 of tax. Above it, you must actively claim the allowances in the non-resident return.

Frequently asked questions

What is the tax-free allowance in Belgium in 2026?

The basic allowance is EUR 10,910 for income year 2025 and is indexed for income year 2026. It is increased for dependent children, for a child under three, for a single parent and for disabled dependants. The allowance works by exempting the bottom slice of your income, so it is worth 25% to 40% of its amount in tax.

Can I deduct my home office as a freelancer in Belgium?

Yes, as actual professional expenses instead of the flat 30% rate. You deduct the professional share of rent or depreciation, utilities, internet, furniture and equipment, based on the surface or time used for work. Keep invoices and a simple allocation note. Mixed-use costs such as a phone are typically accepted at 50% to 75%.

How much tax do I save with pension savings in Belgium?

Paying up to EUR 1,050 a year into a recognised pension savings fund or insurance gives a 30% tax reduction, EUR 315. Paying between EUR 1,050 and EUR 1,350 gives 25% on the whole amount, so EUR 337.50 at the maximum. The capital is taxed at 8% on your 60th birthday, which is still well below the reduction received.

Do non-residents get personal allowances in Belgium?

Only if at least 75% of their worldwide professional income is taxable in Belgium, or if a treaty requires equal treatment. Those non-residents receive the basic allowance, child increases and tax reductions like residents. Others keep deductions linked to the income itself, such as professional expenses, but lose the allowances and reductions.

Are childcare costs tax deductible in Belgium?

Yes, as a 45% tax reduction on amounts paid for recognised childcare of children under 14 (21 if disabled), up to EUR 16.40 per day per child for income year 2025. Crèches, after-school care and holiday camps qualify if the organiser issues the official certificate.

Is the marital quotient still available in 2026?

Yes. Up to 30% of the couple's professional income, capped at EUR 13,460 (indexed), is attributed to the partner who earns less, so it is taxed in lower bands. The federal government has announced a gradual phase-out for couples below pension age, starting from income year 2026.

Related guides

• Belgium's tax system in one page
• Business expenses in Belgium: what freelancers can deduct
• Specific taxes in Belgium: property, registration, inheritance
• Capital gains tax in Belgium: the new 10% rule
• Tax incentives for expats and digital nomads in Belgium
• Personal tax deductions and benefits of Germany
• Personal tax deductions and benefits of Austria
• All country tax guides

Sources

• FPS Finance – official tax portal: personal income tax, tax reductions and allowances
• FPS Finance – indexed amounts and tax return guidance (French portal)
• Income Tax Code 1992 (CIR/WIB 92) – Justel legislation database, Belgian Official Gazette
• NISSE/INASTI – self-employed social contributions and supplementary pension
• PwC Worldwide Tax Summaries – Belgium, individual deductions (secondary cross-check)

This guide is general information, not personalised tax advice. See how we research and review.