Understanding Belgian Special Tax Regime
Asha MenonCommunity desk
Brussels · Belgium · 14 May 2024 · 3 min read
On a €100,000 salary the Special Tax Regime is worth about €1,035 a month. It is also the one benefit with a hard deadline attached: your employer has three months from your start date to apply, and nobody can reopen it afterwards.
At a glance
The three months is the whole thing
The application is made by your employer, within three months of you starting work in Belgium. You cannot file it yourself and it cannot be applied retroactively once the window closes. Ask HR explicitly, in writing, in your first week — not every Belgian employer has done one before, and “we assumed you were not eligible” is an expensive sentence to hear in month four.
What it is worth
Take a gross salary of €100,000 including holiday pay. Under the regime, 30% is treated as a non-taxable cost reimbursement rather than income:
| On €100,000 gross | Monthly net | Difference |
|---|---|---|
| With the regime | €4,676.86 | — |
| Without it | €3,642.20 | €1,034.66 a month, about €12,400 a year |
Do you qualify?
You must be an employee, or a director engaged in daily management, and be recruited directly from abroad or assigned to Belgium. Then, in the 60 months before you start here, all three of these must hold:
- You were not a Belgian resident taxpayer
- You did not live within 150 km of the Belgian border
- You had no taxable employment income in Belgium as a non-resident
Plus a minimum annual remuneration of €75,000 — waived for inbound researchers. The regime runs for five years, extendable by three, to a maximum of eight.
Belgian nationals can qualify too. This surprises people. The test is where you have been living and being taxed for the past five years, not what passport you hold — so a Belgian returning after a long posting abroad may well be eligible.
The employer’s side
You must have been recruited directly from abroad by a Belgian company, a Belgian establishment of a foreign company, or a Belgian or international non-profit — or seconded to one of those by a foreign company within the same multinational group.
What else it covers
- Employer-borne costs of your employment in Belgium are exempt from income tax and social security, capped at 30% of gross and at €90,000 a year.
- Certain one-off costs can be reimbursed tax-free on top: relocation, initial installation, and school fees.
- Standard residency rules otherwise apply — this is not a non-resident status.
The formalities
- Employer applies within three months of your Belgian activity starting.
- A renewal application is needed to continue past the initial five years.
- The employer files an annual list of beneficiaries by 31 January each year.
If you arrived before 2022
The regime was rewritten with effect from 1 January 2022. Anyone hired from that date is on the new rules only. Those on the old regime for under five years at that point had until 30 September 2022 to switch; those on it for more than five years could remain until 31 December 2023. In practice, if you started in 2022 or later, only the rules above apply to you.
Based on the rules as they stood in March 2024, and this is general information rather than tax advice — thresholds and treatment change, and your own case may turn on details not covered here. Confirm with a Belgian tax adviser. To see what any of it means for a specific offer, run it through the gross-to-net calculation.
From our desk, not official advice
Written by the Namaste Community desk under our standing byline, from the questions this community asks most often — not a single person's own account. Rules change and offices differ — check anything that matters with the people who decide it.
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