Norway Tax Residence — 12 Months: the rule, how days are counted, examples

Summary

You become a tax resident of Norway when you stay there for more than 183 days in any 12-month period. The 12 months can start on any date, the days do not need to be in a row, and any part of a day in Norway counts as a full day. Residents pay Norwegian tax on income and wealth from the whole world. A second test runs at the same time: more than 270 days in any 36 months. The Norwegian Tax Administration (Skatteetaten) applies both.

Limit: More than 183 days in Norway
Period: Any 12 months in a row, not the calendar year
A day counts when: You are in Norway for any part of it
Resident from: Your first day, or 1 January of the second year if two years are involved
Law: Taxation Act (Skatteloven), section 2-1, second paragraph, letter a
Run by: The Norwegian Tax Administration (Skatteetaten)

Who it applies to

People who move to Norway for work and want to know from which date they are resident.
Workers on long assignments, for example in oil, construction or fishing, who come and go.
People with a partner or a cabin in Norway who spend long parts of the year there.
Remote workers who plan several months in Norway.
People who arrive late in the year and stay into the next one.

The rule

Section 2-1 of the Norwegian Taxation Act (Skatteloven) says who is resident in Norway for tax. Under the second paragraph, letter a, you are resident when you stay in Norway, in one or several periods, for more than 183 days during any 12-month period. Letter b adds a second test: more than 270 days during any 36-month period. Each test is enough on its own.

The words any 12-month period matter. The period is not the calendar year and not the tax year. Every possible window of 12 months in a row is checked. The days can come from many separate visits, and the reason for the stay plays no part: work, holiday and family visits count in the same way. Skatteetaten counts every day you are in Norway, including parts of days, so the day you arrive and the day you leave both count.

The law also sets the starting point. You are resident only from the income year in which your stay passes the number of days. Skatteetaten explains the result like this. If you pass 183 days inside your first calendar year, you are resident from the first day of your stay. If the days are spread over two income years, you are resident from 1 January of the second year.

Being registered in the National Population Register does not decide the question. A person can be registered as living in Norway and not yet be a tax resident, and the other way round.

As a resident you pay tax in Norway on all your income and wealth, in Norway and abroad. If another country also treats you as resident, the tax treaty between the two countries decides where you are resident for the treaty. Most treaties look first at where you have a permanent home, then at where your personal and economic ties are strongest.

Why it exists

Norway taxes its residents on income and wealth from the whole world, and it needs a clear line for when a person who came from abroad belongs to that group. A count of days is simple to check. Using any 12 months and not the calendar year closes an easy way out: without it, a person could stay from July to June, almost a full year, and never pass 183 days in one calendar year.

Counting the days

You count the days on which you were in Norway for any part of the day, and you check the total for every period of 12 months in a row.

List every stay in Norway with the arrival day and the departure day. Count both of them.
Pick today, or any day you want to test, and look back 12 months.
Add up all days in Norway inside that window.
If the total is more than 183, so 184 or more, you are a tax resident.
Find the income year in which you passed 183. If all the days are in that one year, you are resident from the first day of your stay. If they are in two years, you are resident from 1 January of the second year.
Run the 36-month test as well: more than 270 days in any 36 months also makes you resident.

How Countr counts it. Countr counts every day with any presence in Norway as a full day, in the same way as Skatteetaten. It adds up the days in the 12 months that end today and compares the total with 183. The card for Norway Tax Residence — 12 Months also shows the second window, 270 days in 36 months, because both tests run at once. The card looks at the last 12 months only. If you went over the limit in an earlier period, that stays on the tracker's record when you open it. The app shows the count. It does not work out the date from which you are resident, and it does not apply a tax treaty.

Track Norway Tax Residence — 12 Months on your phone.

Countr finds your past trips in your photos and keeps counting from there.

Download on the App Store

Examples

Moving in March

You move to Oslo on 1 March 2026 and stay. Your 184th day in Norway is 31 August 2026, so on that day you have stayed for more than 183 days in a 12-month period. All the days are in 2026. You are a tax resident from 1 March 2026, your first day.

Arriving in October

You arrive on 1 October 2026 and stay until 30 April 2027. From 1 October to 31 December there are only 92 days, so you cannot pass 183 in 2026. You pass it on 2 April 2027, your 184th day. The days are spread over two income years, so you are resident from 1 January 2027. For October to December 2026 you have limited tax liability, on Norwegian income only.

Fifteen days every month

You work in Stavanger for 15 days each month and live with your family in Poland. In any 12 months you have 180 days in Norway, which is not more than 183. The 12-month test is not met. But in 36 months you have 540 days, far more than 270. The sister rule, Norway Tax Residence — 36 Months, makes you a tax resident.

Exceptions

A tax treaty can make the other country your country of residence for treaty purposes. Skatteetaten then asks for a certificate of residence from that country's tax authority.
The start date depends on the years involved: your first day when you pass 183 inside one calendar year, 1 January of the second year when the days are spread over two.
People who are not resident can still owe Norwegian tax on income and wealth from Norway, such as pay from work done there or property there. This is limited tax liability.
Residence does not end on its own when your days fall under the limit after you move out. To end it you must settle abroad for good, stay in Norway for no more than 61 days in the income year, and have no home available in Norway. If you lived in Norway for 10 years or more, these conditions must be met for three years first.

Common misconceptions

“The 183 days are counted in the calendar year.”: The law says any 12-month period. A stay from October to April passes 183 days although neither calendar year holds that many.
“183 days make me resident.”: The law says more than 183 days. You become resident on day 184 inside a 12-month period.
“Travel days do not count.”: Skatteetaten counts every day you are in Norway, including parts of days. The day you land and the day you fly out are both full days.
“If I stay under 183 days every year, I can never become resident.”: The second test catches this. More than 270 days in any 36 months also makes you resident, which is more than 90 days per year on average.

Questions and answers

Does the reason for my stay in Norway matter?

No. Skatteetaten counts every day in Norway whatever the reason. Holiday, work, study and family visits are all added together.

Do the days have to be in a row?

No. The law says in one or several periods. Ten short visits count in the same way as one long stay, as long as they fall inside the same 12 months.

I am registered in the National Population Register. Am I a tax resident?

Not for that reason alone. Registration and tax residence are two different things. Tax residence follows from the days you stay, under section 2-1 of the Taxation Act.

From which date do I pay tax as a resident?

From the first day of your stay if you pass 183 days inside one calendar year. From 1 January of the second year if the days are spread over two years. Before that date you pay tax only on income from Norway.

Can I be a tax resident of Norway and my home country in the same year?

Yes. Both countries can treat you as resident under their own laws. The tax treaty then decides where you are resident for the treaty, and you must show Skatteetaten a certificate of residence from the other country to use it.

What happens if I go over 183 days by one day?

One day is enough. On day 184 inside a 12-month period you are a tax resident, and the start date goes back to your first day or to 1 January, as the rule above explains. Norway then taxes your income and wealth from all countries from that date, and a tax treaty is the only thing that can limit this.

Sources

Other rules for Norway

Norway Tax Residence — 36 Months 270 days in any 3 years

See all trackers

This page explains the rule and how the days are counted. It is not legal or tax advice. The authority decides each case on its own facts.