US Expat Taxes in Norway: How to File and Avoid Double Tax

Americans who move to Norway for a job transfer, a marriage, or a Nordic career opportunity usually brace for double income tax, but the bigger surprise is often a tax most other countries do not even have: Norway's separate net wealth tax, which sits alongside the income tax and does not offset a dollar of US liability. Skatteetaten in Norway and the IRS back home are both tracking income, and US expat taxes in Norway are neither optional nor automatic. Because Norway taxes its residents on worldwide income and the United States taxes its citizens and green card holders no matter where they live, an American living in Norway typically owes a filing obligation in both countries every year. The entire planning exercise is about coordinating the two returns so the same income is never taxed twice, while treating the wealth tax as a separate problem the Foreign Tax Credit cannot touch.

Do US Citizens Living in Norway Have to File Both Norwegian and US Tax Returns?

Yes, in almost every case. Norway taxes individuals who qualify as tax residents, generally meaning they have a home available to them or spend a qualifying period in the country, on their worldwide income through Skatteetaten. The United States separately taxes its citizens and green card holders on worldwide income no matter where they live, a rule tied to US citizenship or immigration status rather than Norwegian residency.

That means the two filing obligations run independently of each other. Filing and paying tax in Norway does not excuse you from filing a US Form 1040, and filing a US return does not excuse you from your Norwegian obligations. The Foreign Earned Income Exclusion, the Foreign Tax Credit, and the US-Norway tax treaty operate on the US side of that equation, not as a substitute for either filing.

How Does Norway Tax Residents on Worldwide Income?

Norway applies its individual income tax on a worldwide basis to anyone who qualifies as a tax resident, using progressive rates that apply as income rises, and that is the starting point for figuring out what an American in Norway actually owes there before turning to the US return. Employers generally withhold Norwegian tax directly from payroll throughout the year, similar to US wage withholding.

Beyond the income tax, Norway separately levies a net wealth tax on individuals, assessed on the value of an individual's net assets rather than on income. The wealth tax operates independently of the income tax system and is not creditable as an income tax for US Foreign Tax Credit purposes, so it does not offset US tax the way Norwegian income tax does. Because Norwegian tax rules and thresholds are updated periodically, the current-year rates and wealth tax rules should always be confirmed before relying on them for planning.

Should You Claim the FEIE or the Foreign Tax Credit on Norwegian Income?

For most Americans earning wages in Norway, the Foreign Tax Credit on Form 1116 is the stronger tool, because Norwegian income tax generally runs high and typically exceeds the comparable US federal rate on the same income. When that is true, the credit can eliminate US tax on your Norwegian-source income entirely and still leave unused credit on the table, which is why higher earners in Norway typically favor the credit.

The Foreign Earned Income Exclusion on Form 2555 works differently: it excludes foreign earned income up to an annually indexed maximum, for example $130,000 for 2025, from US taxable income in the first place under IRC Section 911. That can be simpler for income under the cap, but it comes with real costs. The FEIE does nothing for self-employment tax, claiming it can disqualify the refundable Additional Child Tax Credit for a family with kids, and once you revoke the election you generally cannot re-elect it for five years without IRS consent. The Foreign Tax Credit, by contrast, is computed by category under IRC Sections 901 and 904, and any credit you cannot use in the current year carries back one year and forward ten years on Schedule B of Form 1116. Our FEIE versus Foreign Tax Credit comparison walks through the decision in more detail.

What Does the US-Norway Tax Treaty Do for Double Taxation?

The United States and Norway have had a comprehensive income tax treaty in force since the 1970s, and like nearly every US treaty it contains the standard saving clause, which lets the United States tax its own citizens and green card holders largely as if the treaty did not exist. For most Americans on the ground in Norway, that means the domestic Foreign Tax Credit and Foreign Earned Income Exclusion mechanisms described above still do most of the day-to-day work of avoiding double taxation on wages.

Treaty relief remains available alongside the domestic credit, and the treaty's tie-breaker rules for dual residency, provisions touching specific categories of income, and other treaty-specific items can matter for situations the domestic credit alone does not fully resolve. Because treaty provisions have to be read in their specific text, any position relying on a specific treaty article beyond the general Foreign Tax Credit framework should be reviewed against the actual treaty language before you file.

Does the US-Norway Totalization Agreement Cover Social Security?

Yes. A totalization agreement between the United States and Norway has been in force since July 1, 1984, and it exists specifically to stop a worker from paying into both countries' social security systems on the same earnings at the same time. Without it, an American employee or self-employed person working in Norway could owe both Norwegian social security contributions and US self-employment tax on the identical income.

The agreement works by assigning coverage to a single system based on where the work is performed and how long the assignment is expected to last, documented with a certificate of coverage issued by the Social Security Administration or by Norwegian authorities, depending on the direction of the assignment. Self-employed Americans in Norway should not assume US self-employment tax automatically applies; our guide to totalization agreements and self-employment tax abroad covers how the certificate process works.

How Are Norwegian Pensions and Retirement Accounts Taxed by the US?

Not automatically. Norway's statutory pension system and private or employer-sponsored retirement vehicles are not, by themselves, tax-deferred for US purposes just because they receive favorable treatment under Norwegian law.

Under IRC Sections 401(a) and 402(b), the baseline US position treats income building up inside a foreign retirement arrangement as taxable to a US person in the year it accrues, unless a specific treaty provision steps in to defer it. Whether the US-Norway treaty provides that deferral, and for which type of Norwegian plan, is fact-specific and has to be analyzed against the actual treaty text rather than assumed. Our foreign pension US tax treatment guide walks through the four questions that determine the answer for any foreign plan: whether growth is taxed as it accrues, whether a treaty defers it, what has to be reported, and how distributions are taxed.

Are Norwegian Investment Funds Taxed as PFICs?

Usually, yes, which catches many Americans off guard the first time they open a brokerage account through a Norwegian bank. Whether it is a verdipapirfond, an actively managed mutual fund, or an ETF domiciled in Norway or elsewhere in the EEA, the fund typically fits the US definition of a passive foreign investment company under IRC Section 1297, with Sections 1291 and 1298 setting the actual tax treatment. Norway's own tax treatment of the fund has no bearing on that US classification.

Once a fund is a PFIC, the default US regime is harsh: without a timely election, gains and certain distributions get spread across your entire holding period, taxed at the top rate for each of those years, plus an interest charge for the years the tax went unpaid. Each PFIC generally requires its own Form 8621 filing, even in a year where no tax is actually due, which is why Americans in Norway are usually steered toward US-domiciled brokerage accounts and US-based index funds rather than a local verdipapirfond through a Norwegian bank.

What Else Do You Have to Report to the IRS?

Filing the income tax return is not the end of it: Norwegian bank, brokerage, and pension-related accounts trigger their own separate information-reporting rules, regardless of whether the return itself shows any US tax due. These filings are enforced on their own terms, and the penalties for missing them are typically far larger than any tax that would have been due.

If your path to Norway was not a clean-cut move, for instance time spent on a Nordic secondment before the relocation became permanent, whether you even count as a US tax resident in the first place is a separate question answered by the substantial presence test.

Bottom Line

The wealth tax is the piece of the Norway picture that trips people up: it runs alongside the income tax, and because it is not creditable against US tax the way Norwegian income tax is, it lands as a real, uncredited cost that a straightforward income-tax comparison will miss entirely. Skatteetaten and the IRS operate independently, and because Norwegian income tax generally runs high, the Foreign Tax Credit usually does more work than the Foreign Earned Income Exclusion for most earners, with the treaty and the totalization agreement in force since July 1, 1984 handling narrower issues alongside it. Retirement accounts, investment funds, and foreign accounts each add their own reporting layer on top of that, and treating the wealth tax as just another line item instead of a distinct system is the mistake that costs Americans in Norway the most.

Have questions about US expat taxes in Norway? Contact TS CPA for a free consultation. We respond within the same day.

Official IRS and Government Sources

• IRS, Foreign Earned Income Exclusion
• IRS, Foreign Tax Credit
• IRS, US Citizens and Resident Aliens Abroad
• IRS, United States Income Tax Treaties A to Z
• Social Security Administration, US-Norway Totalization Agreement
• FinCEN, Report of Foreign Bank and Financial Accounts (FBAR)
• IRS, About Form 8621
• IRC Section 911, Citizens or Residents Living Abroad