Self-employed as a main or secondary occupation: contributions, rights and choices

Two self-employed people, two choices

Who decides: you, or your main activity?

Your main activity decides. You are self-employed as a secondary occupation if, alongside your self-employed work, you have a job that already gives you full social security status, or if you receive certain replacement incomes. Otherwise, INASTI (the NISSE, National Institute for the Social Security of the Self-employed) classes you as self-employed as a main occupation, however much time you spend on your business.

The conditions are precise. An employee must work at least half time, measured in monthly hours against a full-time job in the same sector. A permanently appointed teacher must reach six tenths of a full timetable, a contract teacher half time. A civil servant must work at least half time, eight months or two hundred days a year. A replacement income (unemployment, incapacity) counts if it is at least equal to the minimum pension of a single self-employed person.

In practice, you do not "switch" to main occupation by asking for it, nor to secondary occupation to pay less. It is a change in your situation, the end of a contract or cutting your hours below half time, that changes your status. The details of each regime are on the pages self-employed as a main occupation and self-employed as a secondary occupation.

Point-by-point comparison

The secondary occupation pays little and receives little; the main occupation pays a fixed minimum and receives full protection. Between the two, it all comes down to three lines of the table: the minimum income used for the calculation, pension rights and cover if you cannot work. Amounts are from the 2026 INASTI scale, excluding management fees.

What each status costs, for the same income

On a small income, the secondary occupation is much cheaper, because it has no minimum calculation income. From €17,374.08 of net income, both statuses pay exactly the same contribution: 20.5% of income, and the only difference left is in the rights.

A few benchmarks, excluding management fees. With €1,500 of net income, the secondary occupation pays nothing, the main occupation €3,561.68 over the year. With €14,000, the secondary occupation pays €2,870, the main occupation €3,562. With €30,000, both pay €6,150.

One trap comes up often: believing that a secondary self-employed person only pays contributions on the part above the threshold. The INASTI scale is clear: the rate applies to all income once the threshold is crossed. Earning €2,500 instead of €1,900 takes the bill from zero to €513. The contributions simulator works out your case, and the page on how contributions are calculated explains the adjustment (regularisation).

What each status gives you

The main occupation buys protection; the secondary occupation buys almost none. As long as they pay reduced contributions, a secondary self-employed person builds up no extra social rights: their pension, healthcare and benefits come from their main job. Someone self-employed as a main occupation, on the other hand, builds a self-employed career.

On the pension side, every year as a main occupation counts in the calculation of the self-employed statutory pension. A secondary self-employed person who pays at the same rate as a main occupation, because their income exceeds €17,374.08, can also build up rights; below that, their contributions fund the system without giving them anything back.

On the incapacity side, the main occupation receives an NIHDI flat-rate benefit that is the same whatever the income, and can claim the bridging right if the business stops against their will. That flat rate remains modest compared with a comfortable income, hence the value of income protection insurance as soon as you move to main occupation.

Moving from one to the other: the moments that matter

The switch follows your situation, not a form. If your salaried job ends or drops below half time, you become self-employed as a main occupation; if you take up a sufficient job again, you go back to secondary occupation. Either way, tell your social insurance fund about the change straight away.

Moving to main occupation is the riskiest moment for cash flow. Provisional contributions are calculated on the income from three years earlier, that of the side activity: if the new income is much higher, the gap comes back at the adjustment, two to three years later. Setting aside 20.5% of every payment received avoids the surprise.

On the tax side, nothing changes in nature: main or secondary occupation, the profit is declared for personal income tax (IPP). But as a secondary occupation, it is added to your salary and often falls into the highest brackets, which makes every euro of deductible expenses more valuable. The self-employed as a secondary occupation profile explains how the two combine.

Self-employed as a main occupation or Self-employed as a secondary occupation: how to decide

Further reading

The pages on this site that explore each of the points covered here in more depth.

• Self-employed as a main occupation: status and contributionsThe full scale, the case of the starter and the social rights of the main occupation.
• Self-employed as a secondary occupation: ceiling and contributionsEligibility, 2026 thresholds and moving to main occupation.
• INASTI contributions simulatorWork out your contribution under both statuses, based on your income.
• How social security contributions are calculatedProvisional contributions, adjustment and management fees, step by step.
• Profile: self-employed as a secondary occupationThe action plan for anyone combining a salary with self-employed work.
• The statutory pension for the self-employedWhat a career as a main occupation brings in, year by year.
• Request a call backAn adviser or broker registered with the FSMA may get back to you, free of charge and with no obligation.

Frequently asked questions