by Eline Demeyere and Yadran Compernolle
Belgium reformed its expat regime for inbound taxpayers (BBIB) and inbound researchers (BBIO)in 2022. This regime allows international employees, business executives and researchers to receive a tax-free flat-rate expense allowance and to have specific expenses (such as moving or school expenses) reimbursed under certain conditions. Starting in income year 2025, Belgium is relaxing the regime to strengthen its competitive position in the fight for international talent. The legislation was passed in late 2025 and operates retroactively from Jan. 1, 2025.
The minimum gross annual salary threshold for incoming taxpayers(BBIB) will be reduced from €75,000 to €70,000. For incoming researchers(BBIO) - as before - no minimum salary is required.
This makes a broader group of international profiles eligible for the favorable regime.
The percentage of tax-free expenses proper to the employer increases from 30% to 35% of gross pay. In addition, the former ceiling of €90,000 will be completely abolished. Especially for higher salary packages, this means a significant tax benefit.
A transitional arrangement is also provided.
Employees who:
started in Belgium between January 1, 2025 and January 9, 2026;
with a gross salary between €70,000 and €75,000;
and therefore did not meet the former wage threshold;
can apply retroactively for expat status.
The application must be made before April 9, 2026. Please note that an amendment to the contract is required here. Late submission will permanently void the opportunity.
For employees who already enjoy expat status, the change can also offer benefits. Namely, it becomes possible to apply a higher tax-free expense allowance (35%). To realize this, both the salary package and the current employment contract must be updated.
The relaxation currently only applies for tax purposes. For social security (NSSO) purposes, the rules will continue to apply for the time being as on January 1, 2022:
maximum 30% expense reimbursement exempt
while maintaining the ceiling of €90,000.
The other conditions of the regime remain unchanged:
direct recruitment from abroad
or
posting within a multinational group
residence more than 150 km from the Belgian border
no Belgian tax on professional income (neither as a resident nor as a non-resident)
no minimum wage
However, required:
relevant degree or at least 10 years of experience
At least 80% of their working time dedicated to research activities
employer submits application within 3 months of starting in Belgium
5 years, with possibility of extension by 3 years (subject to timely application)
Good preparation is essential to take full advantage of the new opportunities as well as to avoid surprises. Do you work with international employees or are you planning foreign recruitment soon? Our experts will be happy to examine whether the new regime can be applied.
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Eline Demeyere
Senior Manager International eline.demeyere@vdl.be
Yadran Compernolle
Advisor International yadran.compernolle@vdl.be
Disclaimer
In our opinions, we rely on current legislation, interpretations and legal doctrine. This does not prevent the administration from disputing them or from changing existing interpretations.
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