M Form 2014-2017
If you only lived in the Netherlands for part of the year because of immigration or emigration in the taxable year, you can file a tax return using an M form.
If you have received an M Form, you are required to file your return before the deadline stated on the tax return form. If you need more time, you may apply for a postponement by writing to the tax office that is competent in your case. You will find the address on the M Form.
Applying for an M Form
If you have not received an M Form from the Tax and Customs Administration and you wish to file a tax return for one or more years between 2014 and 2017, you can request the M Form by calling the Tax Information Line for Non-resident Tax Issues. Keep your citizen service number (BSN) handy.