Belgium holiday pay calculator: gross to net (2026)
Calculate Belgian holiday pay: 92% of monthly gross for employees, or the ONVA/RJV formula for blue-collar workers. Free 2026 estimate.
Your situation
Your gross monthly salary (excluding variable bonuses).
12 = full entitlement. Less if you did not work the full year last year.
Enter your gross monthly salary to estimate your double holiday pay.
Double holiday pay: what it is and how it’s calculated
Beyond your normal salary maintained during leave (simple holiday pay), private-sector employees receive an additional amount once a year: double holiday pay. With full entitlement, it equals 92% of your gross monthly salary, under Royal Decree of 30 March 1967.
Incomplete year: the pro rata
Your entitlement depends on the months worked (or assimilated: illness, maternity leave…) during the reference year, the calendar year before the one in which leave is taken. If you did not work the full year, the amount is reduced proportionally to the months worked.
Gross ≠ net: mind the deductions
The 92% figure is a gross amount. A special, higher NSSO contribution and a distinct withholding tax rate reduce it before payment: the net amount you actually receive is meaningfully lower than the gross calculated here.
Blue-collar workers: a separate regime
Blue-collar workers do not follow this calculation: their holiday pay is paid by a dedicated holiday fund (RJV/ONVA or a sector-specific fund), not by their employer, select "Blue-collar" in the calculator above for the full breakdown, gross to net.
One point that is easily missed: equivalent days count. If you were off sick or on temporary unemployment during the reference year, the ONVA assigns those days notional pay that is added to your salary grossed up to 108%. The amount appears on your ONVA statement, and the calculator has a field for it: without it, the estimate is too low.
Want to double-check the rest of your payslip? Use our gross to net salary calculator or our payslip breakdown tool.
Frequently asked questions
What is the difference between simple and double holiday pay?
Simple holiday pay is your normal salary maintained during your paid leave. Double holiday pay is an additional amount, paid once a year (usually in the month you take your main holiday), on top of your normal salary.
How is double holiday pay calculated?
For an employee with full entitlement, it equals 92% of the gross monthly salary of the month it is paid, under Royal Decree of 30 March 1967. If you did not work the full reference year, a pro rata applies.
What is the reference year?
The holiday year (also called the "vacation service year"): the calendar year preceding the year in which the leave is taken. Your entitlement depends on the months actually worked (or assimilated) during that reference year.
Why is double holiday pay gross ≠ net?
A special, higher NSSO contribution (≈13.07%) applies to holiday pay, along with a distinct withholding tax rate. The net amount actually received is noticeably lower than the gross figure calculated here.
Are blue-collar workers covered by this calculator?
Yes. A white-collar employee receives double holiday pay from their employer (92% of gross monthly salary). A blue-collar worker receives their full holiday pay (simple + double) from a holiday fund (RJV/ONVA or a sector-specific fund), calculated as 15.38% of gross annual salary grossed up to 108%. Select your status in the calculator above.
How is a blue-collar worker's holiday pay calculated?
Last year's gross annual salary is grossed up to 108%, then gross holiday pay is 15.38% of that amount (8% simple holiday pay + 7.38% double holiday pay). After an NSSO deduction on the double holiday pay, a 1% solidarity deduction, and withholding tax (17.16% or 23.22% depending on the amount), what remains is the net holiday pay, paid by the ONVA/RJV holiday fund, usually in May or June. If you had equivalent days (sickness, temporary unemployment), the ONVA also assigns them “notional pay” that is added to the salary grossed up to 108%: enter it in the calculator, otherwise your holiday pay will be underestimated.
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