Free Dutch tax calculators for your website

Put a net salary, 30% ruling, mortgage or Box 3 calculator on your site with one line of code. Free, always up to date with the Dutch tax rules, no sign-up, no tracking cookies.

Net salary

Gross to net pay in the Netherlands for 2026, with the 30% ruling and holiday allowance.

Good for: Job boards, recruiters, relocation companies

30% ruling

What the 30% ruling is worth a month, the 2027 drop to 27%, and whether a salary meets the norm.

Good for: Expat portals, recruiters, international employers

Mortgage planner

Mortgage needed, buying costs and the first month's net cost for annuity and linear, with a link to the full plan.

Good for: Estate agents, mortgage advisors, housing blogs

Mortgage payment

The monthly payment and total interest for a loan amount, rate and term.

Good for: Housing sites, property listings

Freelancer (ZZP) tax

Net income for a self-employed person in the Netherlands, with the deductions.

Good for: Freelance platforms, accountants, co-working spaces

Box 3 wealth tax

Tax on savings and investments under the 2026 Box 3 rules.

Good for: Finance blogs, banks, investment platforms

Company car (bijtelling)

The monthly cost of a company car after tax, electric or not.

Good for: Lease companies, car dealers, HR