The combined levy
The Dutch employer withholds and remits a single payroll levy (loonheffing) made up of four components:
- Wage tax (loonbelasting), an advance on the employee’s income tax.
- National insurance contributions (volksverzekeringen): state pension, surviving dependants and long-term care.
- Employee insurance contributions (werknemersverzekeringen): unemployment, sickness and disability — carried by the employer.
- The healthcare insurance levy (Zvw), carried by the employer as an employer contribution.
The distinction that matters for budgeting: wage tax and national insurance come out of the employee’s gross salary, while employee insurance contributions and the healthcare levy sit on top of it. That second group is what turns a gross salary into a materially higher employer cost.
What determines the amount
Three variables move the employer contributions. The sector classification of the company, since several contribution rates are set per sector. The contract type, with permanent contracts attracting a lower unemployment contribution than flexible ones — a deliberate policy incentive that makes permanent employment cheaper per euro of salary. And the company’s own history, since certain disability contributions are experience-rated for larger employers.
The rates are set annually, so the calculation is refreshed each January rather than carried forward.
The monthly cycle
The payroll declaration (loonaangifte) is filed monthly or four-weekly and reports every employee: salary, withholdings, contributions and hours. The remittance follows the filing. The declaration also feeds the government’s wage data register, which other authorities rely on — which is why accuracy matters beyond the tax itself.
Before the first payslip, three items are needed from each employee: the citizen service number (BSN), a copy of a valid identity document verified in person, and a statement of whether the payroll tax credit is applied. That last point avoids a common error: applying the credit at two employers at once produces an assessment for the employee later.
Two facilities worth knowing
The work-related costs scheme lets an employer provide benefits free of payroll tax within a budget, and keeps specific categories outside that budget entirely: the free allowance sets out the three routes.
The 30% ruling allows a portion of salary to be paid free of tax to a qualifying incoming employee (30% in 2026, 27% from 2027): the 30% ruling covers the conditions and the application.
The director-shareholder case
A director-shareholder of their own company runs payroll for themselves, at the customary salary level, from the first payment. Whether employee insurance contributions apply depends on the shareholding and control position — a sole shareholder-director generally falls outside them, which changes the calculation considerably. The DGA salary rules set out the Dutch side and the annual filing picture the position for a US owner.
For the full employer cost including holiday allowance, pension and sick pay, see employer costs beyond gross salary.