US expat taxes in Denmark — the Danish accounts the IRS sees differently.
A US citizen living in Denmark generally remains inside the US federal filing system on worldwide income. Danish tax compliance does not end that — what it usually does is remove most of the US tax through the Foreign Tax Credit. The difficulty is elsewhere: an Aktiesparekonto, a Saxo or Nordnet portfolio and a Danish pension are ordinary here, and each is a separate US question with its own forms.
A screen from the product type. Whether a specific fund is a PFIC turns on its own annual facts; whether a wrapper is a trust or a pension for US purposes turns on its documents.
What actually applies
The layers a Danish return runs through.
Not everyone needs every form. These are the layers that come up most for Americans in Denmark, and what makes each one bite here rather than somewhere else.
US filing layers that commonly apply to a US person living in Denmark
Danish income tax is high enough that the credit commonly zeroes US tax on employment income. Computed per income category, which is where a Danish case gets uneven.
FATCA reporting of specified foreign financial assets, filed with the return.
Higher thresholds than the FBAR — from $200,000 year-end for a single filer abroad — but a broader class of assets, so some Danish holdings appear here and not there.
The catch-up route for non-willful taxpayers living abroad.
The common path for Americans who discover the obligation years in. Certified by you, not by software.
A form appearing here does not mean it applies to you. Which of these your return actually needs depends on your accounts, your holdings and your income — which is what the diagnostic works out.
Accounts and investments
Two questions, and they are not the same question.
One is about the accounts you hold. The other is about what is inside them. Danish life produces both.
Danish accounts: reporting, not tax
A NemKonto, a lønkonto, a budgetkonto, a Saxo or Nordnet depot and an Aktiesparekonto are each a non-US financial account. The FBAR test adds them together and looks at the highest point in the year, so several modest Danish accounts can cross $10,000 between them while none does alone.
This layer is informational — it produces no tax by itself. It produces penalties when missed, which is why it catches people who correctly concluded they owed nothing.
EU PRIIPs rules keep most US-domiciled ETFs off Danish retail platforms, so a Dane building a diversified portfolio buys Danish investeringsforeninger and Irish or Luxembourg UCITS funds. Those are non-US pooled investment vehicles, and such vehicles commonly meet the §1297 tests that define a PFIC.
A confirmed PFIC generally means generally one Form 8621 per PFIC, per year, with the §1291 default spreading gain back across the holding period with interest unless an election applies. Individual Danish shares — Novo Nordisk, Ørsted, Vestas — are not PFICs.
Saxo is Danish, and its European shelf is UCITS funds — European ETFs and funds held through Saxo may create US PFIC reporting, one Form 8621 per fund per year under the §1291 default. Individual shares and directly held bonds are not PFICs, and the account itself counts toward FBAR and Form 8938 either way.
Saxo generally does not serve US residents, and its treatment of US citizens resident in Europe varies by entity and has tightened over time. Confirm current terms with Saxo for your own country.
Denmark's simplest investment account is a US look-through.
Introduced in 2019: one account, a contribution ceiling, and a flat annual tax on the change in value instead of tax on sale. Genuinely simple in Denmark — and, for a US citizen, three separate questions wearing one Danish name.
The wrapper has no US counterpart
No US rule defers, exempts or shelters income because it sits in an Aktiesparekonto. The United States looks straight through to the holdings and applies its ordinary rules to each one.
What is inside decides it
Individual shares inside an ASK are not PFICs. Danish investeringsforeninger and European UCITS funds inside one commonly are — the analysis is per holding, on that holding's own facts.
There is no honest blanket answer to “is an Aktiesparekonto a PFIC?”. An account cannot be one.
Lagerbeskatning versus realisation
Denmark taxes the ASK annually on value change whether or not you sell. The US generally taxes on realisation. Danish tax can therefore land in a year with no US income to credit it against, and Form 1116 credits are computed year by year.
Educational estimate, not tax advice. Domicile is the fund's legal home, not the broker or exchange you used. Broker and provider policies change — confirm current terms with your provider before acting.
An American working in Denmark usually ends up in several pension layers at once — folkepension and ATP from the state, an arbejdsmarkedspension through the employer, often a private ratepension, livrente or aldersopsparing on top. For US tax, none of that is one thing.
What the US analysis actually asks
What the arrangement is for US purposes comes before any treaty article: an employer plan, a personal contract with a pension company, a bank-held account, or a state benefit. Danish product names do not settle it, and Danish tax deferral does not automatically carry across.
From there: are contributions currently taxable, is growth currently taxable, what does Article 18 allocate, and what has to be reported regardless.
Denmark levies PAL-skat at 15.3% on the annual return inside pension arrangements. Whether that is a creditable foreign income tax for you, in which category and in which year, is genuinely fact-dependent — it is computed on a different base and often settled by the institution.
The March 2025 US–Denmark competent authority arrangement clarified which pension entities qualify as a “pension fund” for the Article 10(3)(c) dividend exemption. That is an institutional-investor matter; it does not change how an individual reports a personal Danish pension on a Form 1040.
The typical Danish case is not evasion. It is someone who moved for a job or a partner, paid a great deal of Danish tax for years, and found out from a bank letter. That is the profile the Streamlined Foreign Offshore Procedures were built for.
A qualifying taxpayer files the most recent 3 years of returns and the most recent 6 years of FBARs, with the offshore penalty at 0%. Two gates: your failure to file must have been non-willful, and you must meet the non-residency test — no US abode and at least 330 full days outside the United States, in at least one of the last three years for which the return due date has passed.
Because Danish rates are high, the tax across those years is often little or nothing on employment income. The work is in the information returns, and in a Danish case that usually means one Form 8621 per PFIC per year across the whole window.
Non-willfulness is a legal judgement you certify yourself on Form 14653, under penalty of perjury. Atamatax prepares the return side; you write the certification in your own words, assemble the mailing from the package's instructions, and file.
What the 1999 convention does — and what it leaves alone.
US–Denmark Convention 1999
The convention allocates taxing rights between the two states and provides relief from double taxation under Article 23 — normally as a credit rather than an exemption. The saving clause in Article 1 preserves the United States' right to tax its own citizens as if the treaty had not entered into force, subject to the exceptions listed there.
·Article 10 — dividends; Denmark withholds 27% at source, with a lower treaty rate for qualifying residents and the excess recoverable from Skattestyrelsen rather than creditable.
·Article 11 — interest. Article 13 — capital gains.
·Article 18 — pensions, social security, annuities and alimony; classification of the Danish arrangement comes first.
·Article 23 — relief from double taxation, which is what Form 1116 operationalises.
·Nothing in the convention displaces the PFIC rules, which are US domestic law.
The single most common misreading is that a treaty removes the obligation to file. It does not. It decides who may tax what, and provides a mechanism — for a US citizen, almost always a credit — so the same income is not taxed twice at full rates.
The desk sets out the articles one by one, including the March 2025 competent authority arrangement on pension plans and what it does not cover.
The layers a US return runs through don't change by country — what changes is which local accounts, funds and pensions actually trigger them. Here's how Denmark compares.
Do Americans living in Denmark still file US taxes?#
Generally yes. US citizens and green-card holders file a US federal return on worldwide income wherever they live, and Danish tax residence does not end that obligation. What Danish tax usually does is remove most or all of the US tax through the Foreign Tax Credit on Form 1116 — Denmark's effective rate on employment income typically exceeds the US rate on the same income. The return, and any reporting forms, are still required.
Generally yes. A Danish bank or brokerage account is a non-US financial account, and its maximum value during the year counts toward the $10,000 aggregate test for FinCEN Form 114. The threshold is the combined peak across every account you own or can sign for, not a per-account figure and not the 31 December balance.
A Danish investeringsforening, and the European UCITS ETFs sold on Danish platforms, are non-US pooled investment vehicles — and such vehicles commonly meet the §1297 income test (75% or more of gross income is passive) or asset test (50% or more of assets produce, or are held to produce, passive income) that defines a PFIC. It is an annual test applied to the fund rather than a status conferred by domicile, so each holding should be confirmed. For conventional index funds the answer is rarely a surprise.
The account itself is generally a foreign financial account, so it counts toward the FBAR aggregate and can count toward Form 8938. Whether it also creates Form 8621 reporting depends on what is inside it: individual shares are not PFICs, while Danish or European funds commonly are. The Aktiesparekonto is a Danish tax wrapper with no US counterpart — the US looks through it to the holdings.
The broker is not what creates it; the holdings are. Saxo's European shelf is UCITS funds, because EU PRIIPs rules keep US-domiciled ETFs off European retail platforms, and non-US pooled funds are generally PFICs — each one generally needing its own Form 8621. Individual shares and directly held bonds at Saxo are not PFICs. The account itself counts toward FBAR and Form 8938.
It depends on the arrangement, and the classification question comes before the treaty. A ratepension, a livrente, an aldersopsparing, ATP and an employer arbejdsmarkedspension are analysed separately for US purposes. Article 18 of the 1999 convention covers pensions, social security and annuities, but the saving clause in Article 1 preserves US taxation of citizens subject to the exceptions listed there — so relief usually arrives as a credit rather than an exemption. Danish tax deferral does not automatically carry across.
Can Americans in Denmark use Streamlined Filing Compliance Procedures?#
Residence in Denmark neither qualifies nor disqualifies you. The Streamlined Foreign Offshore Procedures require that your failure to file was non-willful and that you meet the non-residency test — no US abode and at least 330 full days outside the United States, in at least one of the last three years for which the return due date has passed. A qualifying taxpayer files the most recent 3 years of returns and the most recent 6 years of FBARs with a 0% offshore penalty. Non-willfulness is a legal judgement you certify yourself on Form 14653.
Can Danish taxes reduce US tax through the Foreign Tax Credit?#
Danish income tax paid on the same income is generally creditable on Form 1116, computed separately by income category and limited to the US tax on that category. Because Danish rates on employment income are high, the credit commonly reduces US tax on that income to zero. Levies computed on a different base — PAL-skat on pension returns, or the annual value-based tax on an Aktiesparekonto — raise creditability and timing questions that are fact-dependent.
Possibly, and it is a separate test from the FBAR. For a single filer living abroad, Form 8938 starts at $200,000 in specified foreign financial assets at year end or $300,000 at any point during the year; for married filing jointly the figures are $400,000 and $600,000. Form 8938 also covers a broader class of assets than the FBAR, so the two do not move together.
What if I have never filed US taxes while living in Denmark?#
It is usually fixable, and it is the ordinary case the Streamlined Foreign Offshore Procedures exist for. Because Danish tax is high, the tax owed across the catch-up years is often little or nothing on employment income. The work is usually in the information returns — the FBARs, and a Form 8621 for each PFIC for each year, which is what a Danish fund portfolio produces. Start by checking eligibility rather than by guessing at exposure.
Authorities cited
US–Denmark Income Tax Treaty — Convention between the United States and Denmark (signed 1999) and the 2006 Protocol
IRM 4.26.16 — Report of Foreign Bank and Financial Accounts (FBAR) — IRM 4.26.16.3.11 Delinquent FBAR Filing Procedures and 4.26.16.5 FBAR Penalties — the examiner standard: no penalty asserted where non-willful, reasonable cause, and the account is properly reported on the late FBAR
Primary sources (Cornell Legal Information Institute for the US Code and CFR; IRS.gov for forms, procedures, and treaty documents). This page is general information, not individualized tax or legal advice.
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