Topic · Denmark
Aktiesparekonto and US tax: what the IRS sees
Denmark taxes an Aktiesparekonto at a flat rate on annual gains inside a sealed wrapper. The United States does not recognise the wrapper at all — it looks straight through to what you hold.
By Danilson Ramos · Founder, Atamatax
Updated August 2026
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The Aktiesparekonto was introduced in 2019 as a simple way for Danish savers to hold listed shares and funds: one account, a contribution ceiling, and a flat annual tax on the change in value rather than tax on sale. For a Dane it is genuinely simple. For a U.S. citizen in Denmark it is three separate U.S. questions wearing one Danish name.
Does an Aktiesparekonto create U.S. reporting?
The account is a foreign financial account held at a Danish bank or broker, so it generally counts toward the FBAR aggregate and can count toward Form 8938. That part is about the account. What you owe, and on which forms, is decided by the contents — the U.S. does not treat the ASK as a shelter, a pension, or a deferral vehicle, because no U.S. rule gives it that status.
What is inside decides the outcome
| Inside your ASK | PFIC question | Typical U.S. treatment |
|---|---|---|
| Shares in a single Danish company (Novo Nordisk, Ørsted, Vestas) | No — an operating company is not a pooled vehicle | Ordinary dividend and capital-gain rules |
| Shares in a U.S. company | No | Ordinary dividend and capital-gain rules |
| A Danish investeringsforening or other Danish investment fund | Commonly yes — a non-U.S. pooled vehicle | Form 8621 per fund; §1291 unless an election applies |
| A European UCITS ETF | Commonly yes | Form 8621 per fund; §1291 unless an election applies |
| A U.S.-domiciled ETF | No — a U.S. issuer is not a PFIC | Ordinary rules, but rarely available on Danish retail platforms |
The reason so many ASKs contain PFICs is regulatory, not tax: EU PRIIPs rules keep most U.S.-domiciled ETFs off European retail platforms, so a Danish investor building a diversified portfolio is steered toward Danish and Irish/Luxembourg-domiciled funds. Those are exactly the vehicles that commonly meet the §1297 income or asset test.
Lagerbeskatning versus realisation: a timing mismatch
Denmark taxes an ASK annually on the change in value whether or not you sell (lagerbeskatning), at a flat rate lower than ordinary Danish capital-income rates. The United States generally taxes capital gains when realised. That produces a structural mismatch: Danish tax can fall in a year with no U.S. income to credit it against, and a U.S. gain can fall in a year with no fresh Danish tax. The Foreign Tax Credit is computed year by year and category by category, so mismatched timing can leave credits stranded.
If a holding is a PFIC
A confirmed PFIC generally means generally one Form 8621 per PFIC, per year. Under the default §1291 regime, gain and excess distributions are spread back across your holding period, taxed at the highest ordinary rate for each prior year, with interest. A QEF election requires the fund to supply a PFIC Annual Information Statement — most Danish funds do not — and a mark-to-market election has its own eligibility and timing requirements.
Practical positions people take
- Holding only individual shares inside the ASK, which keeps the account out of PFIC territory while keeping the Danish benefit
- Keeping fund exposure in a U.S. brokerage account instead, where U.S.-domiciled ETFs are available
- Accepting the Form 8621 workload deliberately, with the annual cost priced in
- Reviewing what is already in the account before contributing more, because each new fund adds a form
None of these is advice for your situation — they are the trade-offs people in Denmark actually weigh. The right one depends on the size of the account, how long you expect to stay, and what you already hold.
See which of your ASK holdings need Form 8621
Paste the ISINs from your Aktiesparekonto and the free checker flags each one. It reads domicile and instrument type as review signals, not as a final classification.
Authorities cited
- IRC §1297 — IRC §1297 — Definition of a passive foreign investment company
- IRS Form 8621 — About Form 8621 — Information Return by a Shareholder of a PFIC or QEF
- IRC §1291 — IRC §1291 — Interest on tax deferral (excess-distribution regime)
- IRC §1295 — IRC §1295 — Qualified Electing Fund (QEF) election
- IRC §1296 — IRC §1296 — Mark-to-market election for marketable PFIC stock
- FinCEN Form 114 (FBAR) — Report of Foreign Bank and Financial Accounts (FBAR)
- IRS Form 8938 — About Form 8938 — Statement of Specified Foreign Financial Assets
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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