In this article5 min read
See the exact NSSO rates for student workers in Belgium in 2026 and how you, as an employer, make the most of them on your staffing costs.
That familiar sum does not add up
Taking on staff costs money; every employer knows that. You quickly add a quarter on top of the gross salary for social security contributions, and that is before any severance pay or the start-up cost of a permanent contract. With that sum in mind, taking on an extra employee soon looks like a sizeable bite out of the budget.
For a student worker that assumption does not hold. And yet many Belgian employers leave that route aside, precisely because they think it is expensive or administratively too complicated.
You are in good company.
In short: taking on a student worker costs you, as an employer, a fraction of what you pay for an ordinary employee. The main points:
- You pay only a 5.43% solidarity contribution on the gross salary, against an average 25% employer contribution on an ordinary contract
- That favourable rate applies as long as the student stays within the quota of 650 hours a year
- No payroll tax is due, which makes wage administration simpler
- Recruit a Student tracks the quota and handles all the paperwork for you
What does a student worker cost the employer?
As an employer you pay a solidarity contribution of 5.43% on the gross salary for a student worker, instead of the average 25% in social security contributions you pay for an ordinary employee. That is almost five times less.
That 5.43% is a shared contribution: as the employer you carry 5.42% (with a small additional contribution for the Asbestos Fund), and the student carries 2.71% on their gross pay. No payroll tax is due either, as long as the student falls under the favourable scheme, which makes your wage administration considerably simpler than for an ordinary employee.
For an employer who needs extra hands temporarily or seasonally this means, in practice: paying the same gross salary, but with a far lower wage cost on top.
Why is that contribution so low?
The low solidarity contribution is not a loophole but a deliberate favourable scheme. The Belgian legislator wants to give students the chance to gain practical experience and earn something on the side, without student work becoming a heavy financial burden for employers or students.
That makes student workers particularly attractive for covering peak periods, sickness cover or short-term projects. You pay a proper, lawful wage, but without the full social security charges of a regular contract.
What condition is that favourable rate tied to?
The favourable rate applies as long as the student stays within their quota of 650 hours per calendar year. That quota applies per student, across all employers, not per employer separately.
As soon as a student exceeds that quota, they fall back into the ordinary NSSO scheme. From then on you pay the normal employer contribution of roughly 25 to 32%, and payroll tax is due on the student’s pay.
| Situation | Employer contribution | Payroll tax |
|---|---|---|
| Student worker within the quota (max. 650 h/year) | 5.43% solidarity contribution | Not due |
| Student worker above the quota | Normal contribution (± 25 to 32%) | Due |
| Ordinary employee | 25% on average | Due |
The tricky part is that, as an employer, you do not always know how many hours a student has already built up with another employer. Anyone who does not track this carefully runs the risk that the favourable rate suddenly no longer applies, with an unexpected additional assessment as a result.
Would you like to make the most of this rate and leave the quota tracking to us? Recruit a Student follows each candidate’s student quota closely and handles all the paperwork: from the Dimona declaration to payroll. Request a no-obligation conversation.
How does this compare with an ordinary employee?
Besides the lower social security contribution, flexibility plays a part too. You engage a student worker for a fixed, short period: no notice period, no long-term commitment, no risk when things are temporarily quieter.
For employers in sectors with strong seasonal peaks, such as transport, cleaning, customer service or financial services, that is a real advantage. You scale up when it is busy and scale back as soon as the peak is over, without carrying the fixed cost of a regular contract all year.
Work out your actual saving
Compare the 5.43% solidarity contribution with the 25% you pay on an ordinary contract, for every role you could fill temporarily with a student worker.
Watch the quota closely
Ask for the student’s current hours overview, so that you do not unexpectedly end up above 650 hours.
Combine it with a fixed student pool
With Recruit a Student you build a pool of trusted students who already know your company, ready for every new season. Recruit a Student arranges the Dimona declaration, the contract and payroll; you focus on your core business.
Plan your peak periods ahead
The earlier you start, the wider the choice of available students in your region.
Conclusion
A student worker costs you considerably less than an ordinary employee, thanks to the solidarity contribution of 5.43% instead of an average of 25%. That advantage applies as long as the quota of 650 hours is respected, and it is precisely that tracking where many employers gain time and certainty by working with a partner. Recruit a Student watches the quota, handles all the paperwork and builds a fixed pool of motivated students for you.
Planning summer staff is a yearly process that calls for structure, forward planning and the right partner at your side.
At Recruit a Student you have one fixed contact who knows your company. No being put through, no repeating explanations. Your account manager guides you at every step: from selecting the right students to managing your fixed pool and all the paperwork, from the Dimona declaration to payroll.
You call one number. We arrange the rest. That way you start the summer with a full team and end it with peace of mind.
- Qualified and screened staff
- A fixed student pool, tailored to you
- Complete administrative relief
