The M-form explained: your tax return for the year you move
The M return covers the year you arrive in or leave the Netherlands, splitting it into a resident and a non-resident period. You can file it online in Mijn Belastingdienst.
, 7 min read
Tax
Dutch income tax for internationals: the 30% ruling, the M-form, box 3, deadlines and the year you leave.
Your 2026 tax return: the 1 May 2027 deadline and extensions
File your 2026 return before 1 May 2027, or the date in your letter. File before 1 April to hear by 1 July; an extension requested before 1 May runs to 1 September.
, 8 min read
Leaving the Netherlands: the tax side, step by step
Deregister at most 5 days before you go, file the M return for your last year, and expect the 30% ruling, most benefits and your Dutch health insurance to end.
, 9 min read
Childcare benefit in 2026: who qualifies and how much you get
If you both work and use registered childcare, you get 36.5% to 96% of up to €11.23 an hour back in 2026. Apply within 3 months of the care starting.
, 8 min read
Box 3 in 2026: the €59,357 allowance and deemed returns
In 2026 box 3 taxes a deemed return of 1.28% on savings and 6.00% on investments at 36%, above €59,357 per person. You can report a lower actual return.
, 8 min read
Applying for the 30% ruling: conditions, timing and 2027
You and your employer apply together, within four months of your start to get it from day one. In 2026 taxable pay must exceed €48,013 (€36,497 under 30 with a master's).
, 8 min read