Statutory pension
Combining a pension with self-employed work: what is allowed and what it costs
By the Finances Indépendants editorial teamUpdated on 5 min read
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Contents
Unlimited or capped: the four situations
Combining a pension with self-employed work is unlimited in two cases: you have reached the legal retirement age and receive a retirement pension, or you retire earlier and can prove 45 years of career on the date of your first retirement pension. In all other cases, the permitted professional income is capped.
The two capped situations are early retirement without 45 years of career, until the legal age is reached, and a survivor's pension on its own, whatever your age. The second case comes as a surprise: a 70-year-old surviving spouse remains subject to an income limit as long as they do not receive their own retirement pension.
The rule therefore depends on the type of pension received, not just on age. How the pension itself is calculated, with the legal age and career, is explained on our page on the statutory pension for the self-employed.
Income from work
New pension rights
Legal age reached, retirement pension received
Unlimited
No
Early retirement with 45 years of career
Unlimited
No
Early retirement without 45 years of career
Capped until the legal age
No
Survivor's pension only
Capped, at any age
No
Legal age reached, no retirement pension
No pension to combine
Yes, unless opt-out
What happens if you exceed the limit?
Exceeding the permitted income reduces the pension by the same percentage as the excess: 10% over the limit, 10% less pension. From an excess of 100%, the pension is suspended for the whole calendar year. The check looks at the year's professional income, not at one strong month.
There is no single ceiling. The limits vary depending on whether or not you have reached the legal age, the type of activity (employed or self-employed), whether you have a dependent child and the type of pension. The NISSE publishes the official table of amounts every year: that table is what counts for your case.
Take a self-employed person who takes early retirement at 63 with a 43-year career. They are short of the 45 years: their income from work remains capped until the legal age, currently 66, so for three years. With two more years of career, the same departure would have opened up unlimited combining straight away.
Which social security contributions does a self-employed pensioner pay?
A pensioner who continues a self-employed activity remains affiliated to a social insurance fund. They pay no contribution up to €3,844.32 of net annual income. Above that, they pay a reduced contribution of 14.7% instead of 20.5%, on their entire income and not only on the part above the threshold, with a minimum of €141.28 per quarter. It no longer gives them any additional pension rights. This reduced rate applies from early retirement onwards, not only after the legal age.
That is the counterpart of the reduced rate: the contribution funds the self-employed scheme, not your future pension, which has already been calculated. To work out the cost based on your expected income, use our social security contributions simulator and compare with the other statuses described in the guide to NISSE contributions.
- Net annual income up to €3,844.32: no contribution due.
- Above that: reduced contribution of 14.7% on the entire income, with no new pension rights.
- In every case: compulsory affiliation to a social insurance fund.
Reaching the legal age without taking your pension
Since 1 October 2025, a self-employed person who reaches the legal age without receiving a retirement pension pays the same contributions as someone self-employed as a main occupation, that is at least €890.42 per quarter in 2026, plus the fund's fees. In return, they keep building up pension rights.
This scheme also applies to someone who receives only a survivor's pension. Both can, however, ask their fund for the opt-out: they then keep the old, lighter contribution scheme. With no pension at all, the opt-out means no contribution below €3,844.32, then 20.5% on the entire income up to €17,374.08, and the contributions of someone self-employed as a main occupation above that; it only creates rights if the contributions reach that minimum. With a survivor's pension only, the opt-out gives entitlement to the reduced rate of 14.7% from €3,844.32, with no new rights at all. The opt-out remains valid from year to year, but the one without a pension ends automatically if the provisional contribution goes back up to the minimum for someone self-employed as a main occupation without a request for a reduction.
The choice depends on what you expect from these years. If the aim is to increase your pension, the normal scheme and the pension bonus point in the same direction; the 2027 pension reform also changes the rules for early retirement. If the activity is marginal, the opt-out costs less.
Further reading
The pages on this site that explore each of the points covered here in more depth.
- NISSE statutory pension: calculation and 2026 amountsLegal age, career, early retirement: the basics before thinking about combining.
- NISSE social security contributions by statusMain occupation, side activity, working pensioner: what each status pays.
- Social security contributions simulatorWork out your contributions based on the income you expect during retirement.
- Pension bonusWhat you gain by working longer before you retire.
- 2027 pension reform: what changes for the self-employedPenalty, the 156-day condition: the new rules for early retirement.
- Minimum pension for the self-employed: conditionsWhat your career guarantees before you decide to carry on working.
Frequently asked questions
Yes. A pensioner can start a self-employed activity, as a main or supplementary occupation, by joining a social insurance fund. They pay the working pensioner's contributions and must respect the income ceilings if their combining is not unlimited, for example in early retirement without a 45-year career.
Without 45 years of career at the time of retiring, professional income is capped until the legal age. The exact amount depends on the type of activity, whether you have a dependent child and the type of pension: the NISSE publishes the official table every year. With 45 years of career, combining is unlimited from the start.
No. Once the retirement pension is being paid, the reduced contribution of 14.7% no longer creates any additional rights. Only a self-employed person who reaches the legal age without taking their pension, and who has not requested the opt-out, keeps increasing their future pension by paying contributions as someone self-employed as a main occupation.
It is the option, available since 1 October 2025, to keep the old contribution scheme after the legal age when you do not receive a retirement pension. The request is made to your social insurance fund. With no pension at all: nothing below €3,844.32, then 20.5% up to €17,374.08. With a survivor's pension only: 14.7% above €3,844.32. Contributions go down, but no longer create pension rights: without a pension, unless they reach the minimum for someone self-employed as a main occupation; with a survivor's pension only, under no circumstances.
Yes. Someone receiving only a survivor's pension remains subject to a ceiling on professional income, whatever their age. Combining only becomes unlimited with a retirement pension received at the legal age, or before that age with a 45-year career. Exceeding the limit reduces the survivor's pension.
Yes. Self-employed activity requires affiliation to a social insurance fund, and the Federal Pension Service must be aware of the activity when combining is capped. Income is then checked on an annual basis, and exceeding the limit reduces or suspends the pension.
Topics covered
Topics covered: combining pension and self-employment Belgium · self-employed pensioner permitted income · working after retirement self-employed · early retirement income limits · working pensioner social security contributions · self-employed past legal retirement age without a pension · contributions opt-out after retirement age.
Official sources
- NISSE, Permitted professional income for pensioners. View (new tab)(Official source, accessed on 2026-10-11)
- NISSE, Working pensioner as a self-employed person. View (new tab)(Official source, accessed on 2026-10-11)
- NISSE, Self-employed from pension age without a retirement pension. View (new tab)(Official source, accessed on 2026-10-11)
- NISSE, Limited supplementary income after retirement. View (new tab)(Official source, accessed on 2026-09-30)
- Federal Pension Service, Combining pensions with other income. View (new tab)(Official source, accessed on 2026-09-30)
- News.belgium, Change to the contribution scheme for self-employed workers who work after the legal pension age. View (new tab)(Official source, accessed on 2026-09-30)
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