Assisting spouse in Belgium 2026: maxi-status, rights, contributions

An assisting spouse is the married spouse or legal cohabitant of a self-employed person who actually helps them, regularly or for at least 90 days a year, without being their employee. They must have no personal self-employed income above €3,000 a year, no income as an employee or civil servant, and no replacement income giving entitlement to rights of their own. This is typically the wife or husband who keeps the books, welcomes customers, manages supplies or takes part in the work itself (craftsperson, shopkeeper, farmer, liberal profession).

Without a formal social security status, this spouse historically worked "in the shadows": no pension of their own, no personal NIHDI (INAMI/RIZIV) health cover, no rights in the event of divorce. The Belgian legislator corrected this in two stages: a mandatory mini-status from 1 January 2003, then the mandatory maxi-status from 1 July 2005 for spouses born after 1955.

The assisting spouse has no turnover of their own: they are part of the assisted self-employed person's business. Even so, they need a personal income for social security and tax purposes, which serves as the base for their contributions and pension. The solution: income allocation.

Each year, the self-employed person allocates to their assisting spouse a share of the business income, which must match the normal pay for the spouse's work. This allocation is declared in the joint personal income tax return and has two effects:

• It reduces the assisted self-employed person's taxable base by the allocated amount.
• It is the assisting spouse's own income, taxed in their name and subject to their own social security contributions paid to the NISSE (National Institute for the Social Security of the Self-employed, INASTI/RSVZ).

The tax "splitting" effect: because Belgian personal income tax is progressive (marginal rate up to 50%), spreading income over two bases (the self-employed person + the spouse) instead of one can significantly reduce the couple's overall income tax, especially if the spouse has no other income. The allocated amount must, however, reflect the real contribution of the spouse: it must be justifiable if you are audited.

This is the main benefit of the maxi-status: full social security rights, equivalent to those of a self-employed person as a main occupation:

• Own statutory pension: the contribution years count towards the assisting spouse's pension, separately from the assisted self-employed person's pension.
• Independent NIHDI healthcare: the spouse has their own NIHDI number and their own benefits in the event of hospitalisation.
• Incapacity for work: a benefit paid from day 1 provided the absence lasts at least 8 days.
• Maternity / paternity: 12 weeks, €917.33 then €839.82/week (NIHDI, 2026-09-01).
• Bridging right: a benefit if the business is forced to stop.
• Access to their own PLCI; see the PLCI guide. It can be combined with the assisted self-employed person's PLCI, giving a double pension envelope for the couple.

Three common mistakes among self-employed + assisting spouse couples:

• Under-allocating income to the spouse: many allocate 10-15% "for form's sake", whereas a justifiable allocation of up to 30% significantly reduces the couple's overall income tax.
• Forgetting the assisting spouse's PLCI: this is the main lever of the maxi-status. Without a dedicated PLCI, you leave up to €1,635 a year of income tax savings on the table (40% marginal rate).
• Confusing the maxi-status and the mini-status: check with your fund, especially if you are a long-established couple who may have kept the old mini-status. Spouses born before 1956 can opt for the maxi-status, which is worth looking into for those without a pension of their own.