Key takeaways
- Professional withholding tax (PP) is a withholding made by the SRL on each payment to its director, pursuant to art. 270 of the CIR 92.
- It is calculated using the progressive scales of Annex III of the AR/CIR 92 (updated for 2026 by the Royal Decree of 11 December 2025), with marginal rates of 26.75%, 42.80%, 48.15% and 53.50%.
- The director's professional expense allowance is only 3% (capped annually by Annex III of the AR/CIR 92), well below the 30% allowance granted to salaried employees.
- The SRL remits the PP by the 15th of the month following the period, on a monthly or quarterly basis depending on the volume of PP declared in the prior year.
- Benefits in kind (company car, housing) are included in the PP calculation base, in addition to cash remuneration.
As soon as an SRL pays remuneration to its director, it takes on the role of tax collector: it calculates, withholds and remits to the Treasury the professional withholding tax before the transfer even reaches the director's account. This obligation, often perceived as a purely administrative formality, has concrete implications for the company's cash flow and the director's annual tax burden.
Understanding how professional withholding tax works for an SRL director in Belgium, which forms of remuneration are subject to it, how the scale is calculated and which deadlines apply, is the prerequisite for avoiding penalties and structuring remuneration effectively.
Legal framework: the SRL as withholding agent
Professional withholding tax is a withholding on professional income. The obligation to collect it rests on art. 270 of the Code des impôts sur les revenus 1992 (CIR 92), which lists the withholding agents required to retain and remit the tax. Belgian companies are explicitly listed as soon as they pay or attribute income falling within the relevant categories.
For an SRL director, the income concerned is company director income within the meaning of art. 32 of the CIR 92. This provision qualifies as such all remuneration, benefits in kind and allowances granted by the company to its directors, whether they are statutory managers, delegated administrators or representatives exercising an effective management function. An unpaid mandate, with no benefit of any kind attributed, does not trigger a professional withholding tax obligation.
Which remuneration enters the calculation base?
The professional withholding tax base is not limited to monthly cash transfers. Art. 32 CIR 92 covers all benefits attributed in connection with the mandate:
Income subject to the director's professional withholding tax (art. 32 CIR 92)
Fixed cash remuneration
The monthly or quarterly salary paid to the manager, decided by the general meeting or set out in the articles of association. Constitutes periodic remuneration (frame 9a of fiche 281.20).
Attendance fees and variable remuneration
Amounts drawn from the company's profits for the financial year, subject to PP at the time of their effective attribution. Non-periodic treatment (frame 9b of fiche 281.20), calculated at a separate average rate.
Benefits in kind (BIK)
A company car made available for private use, housing provided by the company, meal vouchers above the exempt threshold. These benefits are valued using official schedules published by the SPF Finances and are added to gross remuneration for the PP calculation (frame 9c of fiche 281.20).
INASTI contributions borne by the company
Where the SRL covers the director's INASTI social security contributions, this amount is treated as a benefit and enters the PP taxable base.
Conversely, reimbursements of properly evidenced actual expenses and dividends distributed as a shareholder do not enter the art. 32 CIR 92 base.
The 2026 scale: progressive rates and a reduced expense allowance
Professional withholding tax is not a flat rate. It is calculated using the progressive scales of Annex III of the AR/CIR 92, updated for 2026 by the Royal Decree of 11 December 2025 (published in the Moniteur belge on 29 December 2025). These scales replicate the personal income tax (IPP) rate structure, of which PP is merely an advance collection at source.
1st bracket
Lowest marginal rate (includes a flat 7% communal tax surcharge)
2nd bracket
Lower intermediate marginal rate
3rd bracket
Upper intermediate marginal rate
Top marginal rate
Above the upper threshold of the 3rd bracket
One critical point distinguishes the PP calculation for a director from that of an employee: the professional expense allowance. For a salaried employee, this allowance reaches 30% of gross remuneration (with an annually indexed cap). For a company director, it is only 3% (with a significantly lower annual cap, set by Annex III). This reduced allowance means the director's taxable base is substantially higher than that of an employee on the same gross remuneration, and higher brackets are reached sooner.
The monthly calculation follows these steps: annualisation of the gross monthly remuneration, deduction of the 3% professional allowance, application of the progressive brackets, taking into account the tax-free quota (which varies by family status), then division by 12 to return to a monthly figure. Reductions for dependent children are then applied to this monthly result.
Remittance obligations: monthly or quarterly scheme
The frequency with which professional withholding tax is remitted to the SPF Finances is not the same for all companies. It depends on the total PP declared in the previous year.
| Monthly scheme | Quarterly scheme | |
|---|---|---|
| Condition | PP volume paid in year N-1 exceeds the SPF Finances threshold (revised each year) | PP volume paid in year N-1 at or below the SPF Finances threshold |
| Payment deadline | 15th of the month following the payment month | 15th of the month following the end of the quarter |
| FinProf declaration frequency | Monthly | Quarterly |
| Declaration channel | FinProf (mandatory since 2009) | FinProf (mandatory since 2009) |
The remittance is made by bank transfer to the SPF Finances collection account (IBAN BE85 6792 0036 3806) with the appropriate structured communication. The periodic declaration is filed online via FinProf, the SPF Finances e-service application dedicated to professional withholding tax. Paper declarations require a formal exemption from the competent SME Centre.
An important rule: PP must be withheld and remitted at the time of each attribution, not accumulated at year-end. Attributing monthly remuneration and remitting PP only annually exposes the SRL to late-payment interest.
Support for your SRL in Belgium
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Fiche 281.20 and statement 325.20: annual obligations
Beyond periodic remittances, the SRL is required to declare annually the remuneration paid to each director. This obligation takes the form of two complementary documents.
The individual fiche 281.20 is prepared for each director who received remuneration during the financial year. It sets out, in three separate frames, all amounts paid and benefits attributed:
- Frame 9a: periodic remuneration (monthly salary, recurring benefits in kind)
- Frame 9b: non-periodic remuneration (attendance fees, annual bonuses, severance payments)
- Frame 9c: benefits in kind and INASTI contributions borne by the company
The summary statement 325.20 consolidates all the fiches 281.20 issued by the company for the financial year. Both documents are filed via Belcotax-on-Web by 1 March of the year following the financial year. A copy of the fiche 281.20 is given to each director so they can use it to complete their annual personal income tax return.
Accuracy of fiche 281.20 is a key compliance point: any remuneration or benefit not declared on the form but identified during an audit may be subject to a separate 100% levy, independently of the director's personal income tax liability.
Remuneration or dividends: finding the right balance for the SRL director
The remuneration structure of an SRL director is not purely a tax choice: it determines social rights, deductibility within the company and the overall tax burden on income. A director may, depending on their situation, combine remuneration and dividends.
One frequently overlooked point: to qualify for the reduced corporate income tax rate of 20% on the first bracket of taxable profits (currently up to €100,000), the SRL must, among other conditions, pay at least one of its directors annual remuneration reaching a minimum threshold set by law (art. 215 CIR 92). This threshold sets a concrete minimum level of remuneration to plan for, regardless of the appeal of dividends.
Consulting a tax adviser or chartered accountant is necessary to determine the optimal balance between remuneration (subject to progressive PP but deductible for the SRL and generating social rights) and dividends (subject to withholding tax on investment income, not deductible, but potentially taxed at a reduced rate via VVPRbis or liquidation reserve).
Further reading
- Withholding tax on SRL dividends: the other withholding tax, applicable to profit distributions between shareholders
- Annual management report of an SRL: the complementary reporting obligations of the management body
- Corporate income tax in Belgium: rates and calculation: understanding how the director's remuneration interacts with the SRL's taxable base
- SPF Finances, professional withholding tax: the official page with scales, the simulator and declaration forms
