Understand · Payroll glossary
What is tax form 281.10?
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Tax form 281.10 is your employer’s annual tax slip: it shows your pay for the year and the withholding tax (bedrijfsvoorheffing / précompte professionnel) deducted, for your tax return. In 2026: 28 February (deadline for filing the previous year’s 281.10 forms). In Dutch: loonfiche 281.10.
Definition of tax form 281.10
The employer sends it to FPS Finance (via Belcotax-on-web) by 28 February of the following year and gives you a copy. Its amounts are carried over automatically to your tax return: code 250 for pay, 286 for withholding tax, 284 for the work bonus, 287 for the special contribution.
If you had several employers during the year, you receive a form from each.
The key figure in 2026
Source: Fiches fiscales revenus 2025 : Belcotax est disponible (10 February 2026), filing by 28 February, Securex (secondary source). Value in force on 1 October 2026.
Worked example
| Code | Section | Amount |
|---|---|---|
| 250 | Taxable pay | €37,655.89 |
| 284 | Work bonus | €1,326.48 |
| 286 | Withholding tax | €7,341.93 |
| 287 | Special contribution | €230.88 |
In Dutch: loonfiche 281.10
On a Dutch-language tax return, tax assessment notice (aanslagbiljet) or letter from the tax authorities, tax form 281.10 is called ‘loonfiche 281.10’; on French-language ones, ‘fiche 281.10’.
Dutch term taken from: FPS Finance.
Not to be confused with…
- Tax assessment notice (aanslagbiljet / avertissement-extrait de rôle): the FPS Finance document showing the calculation of your final tax: what you get back or what you have to pay.
- Payslip: the payslip is monthly; tax form 281.10 sums up the year.
Calculate it for your situation
Every code on your employer’s tax form, its code in Tax-on-web, and the comparison with a simulated year.
Related terms
- Taxable payFrom gross to net · in Dutch: belastbaar loon
- Withholding taxFrom gross to net · in Dutch: bedrijfsvoorheffing
- Tax assessment noticeTax and tax return · in Dutch: aanslagbiljet
Sources
Parameters in force on 1 October 2026. Each parameter links to its source, the official one where it exists; a secondary source is flagged as such.
- Fiches fiscales revenus 2025 : Belcotax est disponible (10 February 2026), filing by 28 February, Securex (secondary source). Cross-checked with: billy.tech (26 September 2026).
- Fiches fiscales : explication de la fiche 281.10, zone par zone, FPS BOSA.
- Toelichting bij deel 1 van de aangifte in de personenbelasting, aanslagjaar 2026 (Vlaams Gewest), FPS Finance.