M form Netherlands

Make sure your M form is filed correctly and tax-efficient. Mistakes are easily made and can unnecessarily cost you a lot of money. Our expert tax advisors are happy to help you save money, time, and worries.

How does it work and what does it cost?

Would you like to know more about the possibilities of having us complete your M form? Send us an email or fill in the contact form and describe your situation and questions. One of our advisers will then indicate by email what we can do for you, what the hourly rates are and how many hours we estimate we need in your situation. For the M form, we usually need 2 to 4 hours in standard situations.

Do you want to get a better picture of what we can do for you? Check the example situations.

Do you need to file the M-form?

Do you want to know if you should apply for the M form in your situation? The M form must be submitted for the year in which you enter or leave the Netherlands. In most cases you will automatically receive an M form from the tax authorities. If you do not automatically receive the M form, it can also be requested. Not sure whether to submit an M form; then let us review your migration situation. An M form can be requested and completed up to 5 years ago.

What can we do for you?

In a migration year there are often extra options for tax benefits. But these are easily missed. The M form has been expanded and a costly mistake is easily made. As experienced tax advisers, we take care of the M form for you, so that you can be sure that it has been filed correctly and tax-efficient. We look at your entire situation so that we do not miss any opportunities for tax benefits, but also do not overlook tax obligations. We do not offer assistance if you want to file the M form yourself.

What about the deadline?

In most cases, the deadline for the declaration is July 1. If you let us take care of your M-tax return, we usually request an extension. After completing the form, it will take a few months before you receive a provisional assessment. It can then take up to three years before you receive the final assessment. If you would like to outsource the completion of the M declaration to us or submit your situation to us first, please contact us.

Examples of M form situations in the Netherlands

You started working in August 2020 in Rotterdam. You did not receive a notification to file a tax return but wanted to file it anyway. At first, you wanted to file an M form but you did not understand dutch and were not sure. Since on the Belastingdienst website you saw that you could submit your tax return as well and that all my data was already filed, you submitted it this way. It was accepted and returned to you. However, your colleagues told you again that for the first year working in NL you need to submit the M form anyways. And that probably next year the Tax office will ask back what was returned to you now.

We assume that the assessment you received was provisional and that it could yet change. It could be that your refund was too high or not high enough. Please send us a copy of your submitted tax return as well as your immigration date, annual salary statement and December pay slip. We will then have a look and advise what should be done.

You are a Greek national that lived in the Netherlands from 2014 until 2020 working full time in a company with a fixed salary. You moved back to Greece on January 1st, 2020. In that year you did not receive any income in the Netherlands, but you did keep your apartment until July 2019 and then deregistered from the council in Amsterdam. You originally filed a regular tax return for 2020, but received an M-form from the tax authorities, notifying me that an M-form is the only tax return form they will accept in my case. What can our office do for you in this case?

It may be advantageous to correct the emigration date to the beginning of the year 2020. Would you please send us a copy of your 2019 tax return as well as a copy of the 2020 tax return that you submitted incorrectly? In this case, it is already important whether the property was already for sale since January 1st, 2020.

You are an Italian ex-pat living in the Netherlands. You moved to the Netherlands in 2018 for your studies and started working in the Netherlands in 2019. You have declared your tax returns from 2018 (till 2020) yourself but never filed an M-form. In your 2020 tax return, you deducted your study costs. Initially, you received tax back, but later the Tax office asked you to pay the received amount back to them. Their reason is that you never filed an M-form and never declared these study costs before. You want to know how to proceed.

In your situation indeed an M-form needs to be submitted for 2018,, appeal against the 2019 final assessment is needed, appeal against the 2020 final assessment, and consequently submitting the 2021 tax return. If you would like to proceed we will send you a list with information that we need.

You emigrated or immigrated together with your partner. You are tax partners. Is it sufficient if you process your partner’s data and income in the M declaration, or does your partner have to fill in an M form?

In the event of migration, it is necessary that both taxpayers submit an M form.

In the year in which you emigrated, you partly worked in the Netherlands as an employee and partly from your own company. You are wondering how to file your M form.

With your emigration, the sole proprietorship has also moved and should be deregistered. A sole proprietorship is not a separate entity. Annual accounts should be prepared for the Dutch period in the migration year and then the company should be deregistered. In a number of cases, a Dutch EMS can continue to exist.

You moved back to your home country last year for work. Your family remained in The Netherlands to finish school. You visited your family regularly. You have deregistered from The Netherlands and received an M form from the tax authorities with the request to complete it. Is this correct?

Since your family still lived in the Netherlands, your life center was still in the Netherlands. In that case, you remain taxable in the Netherlands. An exemption can then be requested for the days worked in England, as well as for the national insurance contributions. consequently, your deregistration and the M-form may not be correct.

You moved to live and work in The Netherlands in 2020. However, you did not register in the Netherlands until 2021. You subsequently received an M-ticket for 2021.

In your situation, a bill of exchange may need to be applied because you have in fact already emigrated in a previous year. In practice, however, exchanging a banknote at the tax authorities is often difficult.


As an expat and business owner, my income taxes can get pretty complicated. But thanks to the folks at J.C. Suurmond & zn., I don’t have to worry about getting things wrong or forgetting obscure tax rules. It’s great to feel like I have someone on my side dealing with the Dutch tax authorities. They’ve handled my taxes for years, and I hope they will for years to come. Thanks 🙏🏼”

– Brian Pagán-


“Work in the US, through secondment by a Dutch research institute. Sander was able to advise me on avoiding double taxation and other tricky questions, and help with filing taxes in NL during the last two tax seasons. Professional and prompt responses, can certainly recommend!”

– Roelof Smit –


“They are very helpful and responsive in the times of need. Good and clear communication of right information.”

– Mishanthini Sivasamy –

View our knowledge base

Who are Suurmond Tax Consultants

Since 1986 expat and business tax advice in relation to the Netherlands is one of our areas if expertise we provide to our individual and/ or business clients.

In addition, we can also assist in a variety of other cross-border situations. We will ensure you are compliant as well and that you pay no more tax than needed. Examples include advising clients as to starting a business in The Netherlands, accounting, property tax, and amnesty ruling. We file all types of  tax returns and specialise for example in the 30% ruling and 183-days rule consequences. The value we can add with our fiscal advice, is a key focus point to us. Also, what should not be overlooked, is the fact that a correct tax return will prevent future issues and penalties. This is essential when moving to a new country, or when setting up a business in a new country. 

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J.C. Suurmond & zn. Tax Consultants
Zwarte Zee 100
3144 DE Maassluis
T: +31 (0)10-3033701
E: taxadvice@jcsuurmond.nl


General information

CoC register: 27224918
VAT: NL 8016.36.668.B.01
Tax consultant number: 330826