The 30% ruling is the tax facility most founders and relocating employees ask about first, and also the one most often misunderstood. It is not a flat 30% tax cut — it is a tax-free reimbursement for the genuine extra costs of moving to and working in the Netherlands, administered through payroll. Getting the eligibility and the payroll mechanics right from day one avoids a costly correction later.
What the ruling actually does
Employers can pay up to 30% of an eligible employee's salary as a tax-free allowance, without the employee having to prove the actual extraterritorial costs (double housing, travel to the home country, cost-of-living differences) it is meant to cover.
It is applied inside the monthly payroll run, not claimed separately at year-end — the employer's payroll administration has to be set up correctly from the first payslip.
Who qualifies
In broad terms, the ruling is for employees who are recruited or transferred from abroad to work for a Dutch employer, who have specific expertise that is scarce in the Dutch labour market, and who lived more than roughly 150 km from the Dutch border for most of the two years before starting the job.
A minimum taxable salary threshold applies, with a lower threshold for employees under 30 who hold a qualifying master's degree. The application must be filed within four months of the start of employment to get the ruling backdated to the first working day; filing later means it only applies from a later month.
- Recruited from abroad, or transferred within an international group to a Dutch entity
- Specific expertise scarce on the Dutch labour market (assessed mainly via the salary threshold)
- 150 km rule: lived outside that radius from the Dutch border for more than 16 of the 24 months before starting work
- Salary threshold met, with a reduced threshold for young master's graduates
- Application filed jointly by employer and employee, within the 4-month window
The stepped scheme and the cap
The rules were tightened for new cases: the tax-free share now steps down over the maximum period rather than staying flat at 30% throughout, and there is a salary cap above which the tax-free allowance no longer applies to the excess.
Because both the percentages and the cap are adjusted periodically, treat any specific figure as a starting point for a conversation, not a final number — verify the current thresholds on the Belastingdienst page linked below before running payroll on them.
Where it touches payroll
The ruling changes gross-to-net calculations, the taxable base for social security, and how the employment contract should describe the allowance. It also has to be re-evaluated if the employee changes role, employer, or salary during the ruling period.
This is why Polder handles the 30% ruling application and the ongoing payroll administration together for employer clients — a ruling that is approved but wired incorrectly into payroll is a common, avoidable source of correction cycles.
Common mistakes
The two mistakes we see most often: filing after the four-month window and losing the backdating, and assuming a director-shareholder of their own BV qualifies on the same terms as a regular employee — that case needs a separate check.
A second, quieter mistake is not reassessing the ruling when someone switches employer within the same group; the clock and the conditions don't automatically carry over without a fresh check.