Dutch payroll looks harsher than it is, because the headline rate includes social insurance and the credits that bring it down are applied afterwards. For 2026 the Belastingdienst publishes box 1 for people under state pension age as 35.75% on income up to €38,883, which is 8.10% income tax plus 27.65% social insurance premiums, then 37.56% to €78,426 and 49.50% above. On €50,000 that is €18,076.22 before credits, 36.15% of gross. Then the algemene heffingskorting and the arbeidskorting reduce the bill, and 8% holiday allowance is paid on top of the salary.
Box 1, and what is inside the headline rate
Box 1 is income from work and home ownership, and the first bracket bundles two different things: 8.10% of income tax and 27.65% of social insurance premiums, which the Belastingdienst states separately and which together make the 35.75%. That bundling is why the Dutch first bracket looks so much heavier than the UK basic rate, when the honest comparison is against UK Income Tax plus National Insurance together, 28% at the same point. €35,000 pays €12,512.50 before credits, €50,000 pays €18,076.22 and €90,000 pays €34,482.15.
The two credits that decide the real number
The algemene heffingskorting is a general tax credit everyone gets, tapering away as income rises. The arbeidskorting is an employed person's credit, which rises with earnings to a peak and then tapers. Both are deducted from the tax computed above, and for a middle income they are worth several thousand euros, which is why an effective Dutch deduction rate is materially below the 35.75% headline. The Belastingdienst publishes the tables for both, and they move every year: any calculator that uses last year's tables will be wrong by the amount the credits moved.
Holiday allowance and the thirteenth month
Dutch employees receive vakantiegeld, holiday allowance, of at least 8% of the annual salary, usually paid in May. It is a legal minimum rather than a bonus, and it is taxable pay like any other, but it means an advertised monthly salary understates the year by roughly one month's pay. Many employers also pay a thirteenth month. So a €4,000 monthly offer is at least €51,840 a year rather than €48,000, and a UK reader comparing monthly figures with a UK monthly salary is comparing the wrong things.
The 30% ruling, if it applies to you
An employee recruited from abroad with scarce specific expertise may qualify for a ruling that allows part of the salary to be paid free of tax as a reimbursement of extraterritorial costs. It is conditional, time-limited and has been narrowed repeatedly, so the rate and the term depend on when the ruling started. If you are moving for a job, it is the single largest variable in your Dutch take-home and worth confirming with the employer in writing before the offer is accepted rather than after.
Reading a Dutch offer from the UK
Ask whether the quoted salary includes the 8% holiday allowance, because both conventions exist. Ask whether a 30% ruling is expected and for how long. And remember that residence decides which country taxes the salary: the UK and the Netherlands have a double taxation agreement, and the Dutch tax year is the calendar year against the UK's 6 April to 5 April, so a mid-year move straddles two years on one side and one on the other.
Questions people ask about salary calculator netherlands
What are the Dutch tax rates for 2026?
Box 1 for people under state pension age: 35.75% up to €38,883, 37.56% from there to €78,426 and 49.50% above. The first bracket is 8.10% income tax plus 27.65% social insurance premiums.
Why is my Dutch net higher than the headline rate suggests?
Because two tax credits, the general one and the employed person's one, are deducted from the computed tax. They are worth several thousand euros at a middle income and the Belastingdienst publishes the tables.
Is holiday allowance part of my salary?
It is at least 8% of the annual salary, paid separately, usually in May, and taxed like any other pay. Whether an advertised figure includes it varies by employer, so ask.
What is the 30% ruling?
A conditional, time-limited arrangement allowing part of the salary of an employee recruited from abroad to be paid free of tax as a reimbursement of extraterritorial costs. It has been narrowed repeatedly, so confirm the terms in writing.