Foreign Pensions and US Taxes: What Expats Need to Know

Take a job in Europe and something pleasant happens automatically: your employer enrols you in a pension, often with generous matching. For any other nationality, that’s free money. For a US person, it’s free money plus a tax puzzle — one worth solving early, because the answers range from “totally fine” to “quietly expensive.”

Why foreign pensions are complicated for Americans

The US tax code grants its blessings — tax-deferred growth, deductible contributions — to US-qualified plans. Your Dutch or Irish or German employer pension isn’t one. Without treaty protection, the default US view of a foreign pension can be ugly: employer contributions potentially taxable as current income, growth potentially taxable annually, and — depending on the plan’s structure — possible PFIC or foreign-trust reporting entanglements with serious penalty exposure for missed forms.

The treaty rescue (sometimes)

Good tax treaties fix much of this. Several US treaties (the UK’s is famously robust) explicitly respect pension wrappers: contributions can be deductible, growth deferred, and taxation waits for withdrawal — roughly mirroring a 401(k). Other treaties are partial or silent, leaving the default mess in place. So the practical question is never “are foreign pensions OK?” but “what does my treaty say about this plan type?” — a question with real money attached and a country-specific answer.

Reporting: the part nobody warns you about

Even a well-treated pension usually needs reporting: FBAR once your foreign accounts (pension sometimes included) cross $10,000 in aggregate; FATCA Form 8938 at higher thresholds; and in bad cases foreign-trust forms (3520/3520-A) whose penalties start five figures. The filings are manageable when known and brutal when discovered late — this is exactly the terrain of our sister brand eTaxNexus and its vetted expat tax professionals.

Practical playbook

• Before enrolling (or ASAP after): identify the plan type and check your treaty’s pension article. Ten minutes of professional input here saves years of cleanup.
• Take the match either way it usually pays: employer matching is often valuable even under imperfect tax treatment — but confirm rather than assume, especially for investment-choice plans that may hold PFICs.
• Keep records from day one: contribution history and employer statements — future-you needs them for basis calculations at withdrawal. (A tailor-made job for the Financial Organization System.)
• Coordinate with US accounts: a foreign pension changes the math on IRA contributions, Roth conversions and Social Security timing — it’s one retirement system now, not two.
• Returning to the US later? The pension follows with its own rules on distributions and totalization credit (totalization explained).

The relief that took the scariest form off the table

The foreign-trust forms mentioned above deserve a calmer footnote. Since Rev. Proc. 2020-17, most tax-favoured foreign employer and retirement plans are exempt from Forms 3520 and 3520-A. If your plan is the ordinary kind — set up under local law, tax-advantaged in its home country, with contributions capped by that law and a payout tied to retirement — the annual trust-reporting exercise that used to terrify expats is generally gone. Two limits: the relief does not remove FBAR or Form 8938 reporting, and it says nothing about whether contributions and growth are taxable now. Have the plan’s category confirmed once, in writing, and keep the note with your records.

Two reports, not one

A foreign pension normally belongs on Form 8938, and depending on its structure it may belong on the FBAR too; when in doubt, include it — nobody is penalised for over-reporting. The two forms overlap almost entirely, filing one does not satisfy the other, and you may well owe both. For the numbers and the due dates, see organising your financial life as an expat.

The windfall rule is gone

For years the second question after “is my pension taxed?” was “will it cut my Social Security?” Not any more. The Social Security Fairness Act, signed on 5 January 2025, repealed the Windfall Elimination Provision and the Government Pension Offset for benefits from January 2024 onward. A Dutch, German or Irish pension no longer reduces your US benefit, so there is no longer a Social Security reason to hold back contributions. What the repeal does not touch is tax on the pension itself, which remains a treaty question (Social Security abroad).

What to gather before you see the accountant

Professional time is expensive and most of it gets spent hunting for documents. Arrive with these and the meeting is half the length:

• The plan’s formal name, its country and whether it is an employer scheme, a personal plan or the national system — the treaty article that applies depends on this.
• Contribution history split into employer and employee amounts, by year, in local currency.
• Year-end and peak balances for every foreign account, pension included, so the FBAR and Form 8938 thresholds can be tested in one pass.
• The plan’s investment menu, if you choose funds yourself — the fastest way to spot a PFIC problem is to see what you actually hold.
• Last year’s US return, plus any earlier years you suspect were filed without the pension mentioned. Fixing an omission is cheaper when you raise it yourself.

The bottom line

A foreign pension can be a genuine asset or a compliance headache — and the difference is usually just the treaty plus early paperwork. Getting your specific plan reviewed is a standard component of the Expat Money Assessment, with regulated advice from vetted cross-border professionals where the stakes justify it.

This article is general information, not tax advice. Treaty and reporting rules are complex and fact-specific — take professional advice for your plan and country.