---
title: "What is the M-form?"
term: "M-form"
description: "The M-form (M-return) is the migration income-tax return used when you move to or from the Netherlands in a tax year."
date: 2026-08-02T00:00:00.000Z
lastVerified: 2026-08-02T00:00:00.000Z
source: https://dutchtaxcalculator.nl/glossary/m-form
---

# What is the M-form?

> The M-form (M-return) is the migration income-tax return used when you move to or from the Netherlands in a tax year.

Dutch term: _M-biljet_

Deadlines and forms depend on your move timing and Belastingdienst invitation. We explain concepts; we do not file returns for you.

## FAQ

### What is M-form in simple terms?

The M-form (M-return) is the migration income-tax return used when you move to or from the Netherlands in a tax year.

### Is this personal tax advice?

No. These pages are educational estimates. Use your payslip, assessment, employer, Belastingdienst guidance, or a qualified adviser for personal decisions.


## Sources

- [Belastingdienst: income-tax rates and credits](https://www.belastingdienst.nl/wps/wcm/connect/nl/werk-en-inkomen/content/hoeveel-inkomstenbelasting-betalen)

---
Source: https://dutchtaxcalculator.nl/glossary/m-form