What is the 183-day rule?
The 183-day rule decides which country may tax your salary when you work abroad. It sits in most of the tax treaties the Netherlands has signed.¹ The main rule in those treaties is that the country where you work may tax the salary you earn there.¹ The 183-day rule is the one exception. It hands that right back to the country where you live.¹
Three conditions have to be met together. Miss one and the work country may tax your salary.¹
Three things sit outside this rule. It does not decide where you are a tax resident. That is a separate test. Our page about tax residency in the Netherlands walks through it. It also does not calculate the relief you get when two countries both tax the same income. Our page about double taxation in the Netherlands covers that. Social security is a third system, with its own rules and its own A1 certificate.
Adaeze lives in Rotterdam and works as a maintenance planner for a Dutch chemicals company. Her employer posts her to the company’s Antwerp site from 1 March to 30 September. We come back to her at every step. The points below are the ones that decide her case.
In short
Three conditions must all be met before the country where you live keeps the right to tax your salary.
You may spend no more than 183 days in the work country. Your treaty decides which period those days fall in.
Every day of presence counts, including weekends, sick days, public holidays and days off you spend there.
A part of a day counts as a full day, so travel days count in full.
Who pays your wage decides the second condition. A recharged wage cost can defeat the exception.
Your residency is a separate test. Where your life is decides it, not your day count.
Which three conditions have to be met?
The treaty sets three conditions: time, who pays and who bears the cost.¹ Adaeze’s posting has to clear every one of them.
The first condition is about time. You may not stay in the work country for more than 183 days in the period your treaty uses.¹ The second is about who pays. The employer paying your wage may not be established in the work country.¹ In secondment cases that means the wage is not paid by or on behalf of an employer there.¹ The third is about cost. Your wage may not be charged to the profit of a permanent establishment in the work country.¹ The same goes for a permanent representative of your employer there.¹
A permanent establishment is a fixed place of business, such as a branch or a factory. If any one of the three fails, the work country may tax the salary you earn there.¹ The table sets the three side by side.
| Condition | What it means |
|---|---|
| Time in the work country | You stay there no more than 183 days within the period your treaty uses. |
| Who pays your wage | The employer on your payroll is not established in the work country. |
| Who bears the wage cost | Your wage cost does not fall on a permanent establishment or representative there. |
How do you count the 183 days?
You count every day you are physically present in the work country.¹ You have the three conditions. Does a weekend abroad count towards the first one? It does. The count is wider than working days alone.
Weekends and sick days count.¹ So do public holidays, days off and the holidays you spend in the work country.¹ A part of a day counts as a full day, so the day you fly out counts in full.¹
Why you were there does not matter. The Dutch Supreme Court applies the days-of-physical-presence method from the OECD commentary.² A resident of Belgium worked fewer than 183 days in the Netherlands but stayed longer for private reasons.² His whole stay counted.² The Netherlands could tax his salary for the part of the work he did here.²
Adaeze travels home most weekends. Those days do not add to her count, because she is not in the work country. The table below shows which days do.
| A day spent in the work country | Counts towards the 183 days? |
|---|---|
| A day you work there | Yes |
| A weekend you spend there | Yes |
| A sick day there | Yes |
| A public holiday there | Yes |
| A day off or a holiday there | Yes |
| Part of a day, such as a travel day | Yes, as a full day |
In which countries does the 183-day rule apply?
It applies under most of the tax treaties the Netherlands has signed.¹ Counting is only useful once you know which treaty applies. The rule is not a Dutch invention. It sits in the treaty itself, so the country on the other side reads the same article.¹
What differs is the period. The treaty says which period to use. That can be a calendar year, any consecutive period of twelve months or a tax year.¹ The Dutch government publishes an overview of every treaty, so you can check which one applies to your work country.¹
So Adaeze’s first question is not how many days she worked. It is which period her treaty counts them over. The box below shows why that period decides so much.

Who counts as your employer under the treaty?
The company that really directs and pays for your work can be your employer.¹ The day count is only half the answer. This is the second condition. In many secondment cases it is the one that fails.¹
That company is the so-called material employer (materiële werkgever), also called the economic employer. Adaeze’s case turns on exactly this question. The Netherlands applies the test when a foreign employer sends someone to work here.¹ If the Dutch host company really acts as the employer, the second condition fails.¹ The Netherlands may then tax from the first working day.¹ The formal employer withholds Dutch wage tax.¹ The Dutch host company stays liable if that does not happen.¹
Now turn it around. Your Dutch employer still runs your payroll. But the company you work for abroad may direct your work and carry your wage cost. The work country can then treat that company as your employer. The 183-day rule then falls away, whatever your day count says. How strictly a work country applies that test differs per country. So this is the point to check before you go.
The Netherlands applies two versions of the test.¹ The date of your treaty decides which one applies.¹ The table below sets them out. Your work country decides your case under its own rules.
| Date of the treaty | How the test works |
|---|---|
| Before 22 July 2010 | The host company is your employer when all three hold: authority over your work, the work at its expense and risk, the wage cost charged per unit of time. |
| On or after 22 July 2010 | The Netherlands then weighs all circumstances together. The Belastingdienst does not test the three points separately. |
How does this work out in practice?
Adaeze stays under 183 days and can still lose the exception. What happens when a posting clears the first condition but not the second? Her count is the easy part. The harder question is who her employer is.
She is at the Antwerp site from 1 March to 30 September inclusive and stays there during the week. Her posting window runs 214 calendar days, arrival and departure days included. She travels home for 38 weekend days, so her count lands at 176. The weekends she stays over and a week of leave there are all in that total.
Her posting starts and ends inside one calendar year. So she stays under 183 days whichever period a treaty uses. The first condition is met.
Then the second. The Antwerp site manager decides how and when Adaeze works. The Antwerp site carries the expense and risk of her work. And her Dutch employer charges her wage cost to Antwerp per working day. All three points hold. Under the weigh-all-circumstances version the answer is the same.
Belgium decides that under its own reading of the treaty. On these facts it is likely to treat the Antwerp site as her employer. If it does, the exception falls away. Belgium may then tax her salary from her first working day. The Netherlands gives relief for that part in her return. Her 176 days never came into it.
Whether that happens in your case turns on the same two questions.
What does this mean for you?
Check your days, your employer and your wage cost before the posting starts. Three things settle most cases. The sections above hand you each one. Count every day you are physically present in the work country, not just your working days. Look up which period your treaty counts them over. Then check whether your employer recharges your wage cost to the site abroad.
If the exception does not apply, the relief rules decide what comes off in the Netherlands. Our double taxation guide explains how that relief works. Which return you file depends on your residency. Our tax residency guide walks through that test. Moved to or from the Netherlands during the year? Then the M-form is your return. Do you work in Germany? Then the German compensation scheme (compensatieregeling Duitsland) may apply to you. Do you draw a benefit or a pension from abroad? Then the Belastingdienst may ask you for the worldwide income return (opgaaf wereldinkomen).
Social security is a separate system with its own rules. Your A1 certificate follows different tests. Staying under 183 days for tax says nothing about which country insures you. Our page about the A1 certificate for temporary work abroad covers that side.
This is general information, not personal advice. Your treaty, your contract and your day count decide the answer. That is what our advisor watches for.
“Most people count their working days and stop there. The treaty counts every day you are in the country. Then it asks who carries the cost of your wage. We check both before a posting starts, so you know where you stand.”
Common questions about the 183-day rule
Does the 183-day rule decide where I am a tax resident?
No, it only decides which country may tax your salary. Residency is a separate test, based on where your life is.
Do weekends count towards the 183 days?
¹ belastingdienst.nl, Tax treaties, which country is allowed to levy tax on wages · Accessed

