Is foreign pension income taxable in the US? What expats must know

US citizens and residents must report foreign pension income on Form 1040 regardless of where the pension originated. The IRS taxes most foreign pension distributions under IRC §§ 61 and 72. Tax treaties may reduce double taxation, but do not eliminate the US reporting obligation for US citizens.

Key takeaways

• Most foreign pension distributions are taxable on Form 1040, under IRC § 61 and the rules in IRS Publication 575.
• The Foreign Earned Income Exclusion never covers pension or annuity income. Only wages and self-employment qualify under IRC § 911(d)(2). Treaty relief or Form 1116 is the usual way to reduce US tax on foreign pension payments.
• Lump sum payouts are generally reported on Form 1040, lines 5a/5b, and the taxable amount is usually the gross distribution minus your cost basis. Special treaty rules may also apply. If the foreign withholding is a creditable foreign income tax, Form 1116 may reduce US tax, subject to the foreign tax credit limitation.
• Foreign retirement accounts may also require Form 8938 and the FBAR. These are separate filings with separate thresholds, not substitutes for each other.

This guide is prepared by Taxes for Expats, a US tax preparation firm working with Americans abroad since 1991.

Foreign pension taxability at a glance

The following table shows how the IRS classifies the 4 main foreign pension types, which form applies, and when a treaty can shift taxing rights away from the US.

 

Foreign pensions are generally taxable in the US across all 4 categories above, though the taxable amount can be reduced by your basis and, in some cases, by treaty relief or a foreign tax credit; the meaningful variation is which forms apply and which treaty article controls.

Know your pension type: what it means for US tax

The IRS tax treatment of a foreign pension depends on its type. Government pensions, employer plans, personal savings accounts, and social-security-type systems each follow different rules under the IRC and applicable tax treaties. Misclassifying the pension type is the most common source of errors on expat returns.

Getting the category right is the first step, because everything that happens next, including tax, foreign tax credits, reporting, and treaty relief, depends on this starting point. Courts and the IRS look at how your foreign pension income fits into four simple groups, and that classification shapes how you are taxed in both countries.

Government pensions: foreign public service plans

These pensions come from a foreign government or local authority for work done in public service. Think of teachers, police officers, or anyone paid directly through public funds.

The 5 rules that govern this category for US purposes are:

• Plans are paid out of government money, not a private company retirement fund.
• Government-service pensions often follow a special treaty rule, but check the specific treaty and any protocol to see which country has taxing rights.
• On a US return, the payment shows up on Form 1040 and is taxed under the basic rules in Publication 575. Any foreign tax paid may be handled through Publication 514 and the credit on Form 1116.
• When a treaty copies the US Model, the government-service rule usually overrides the general pension article.
• If the treaty does not shift the taxing right, the US treats this exactly like any other pension under Publication 575.

Employer plans: pensions from foreign companies

These are workplace plans set up by a foreign company. Among foreign pension plan types, this is the largest category and covers both defined benefit plans that promise a formula payout and defined contribution plans that hold investments for workers.

Under IRC § 402(b), employer contributions usually count as taxable income once they vest, and highly compensated employees may be taxed each year as their benefits grow.

A simple real-world marker is Australia's compulsory superannuation. The ATO sets the employer contribution rate at 12% of ordinary time earnings from July 1, 2025, through June 30, 2026.

TFX client scenario: a US citizen who worked 20 years for a German employer receives a defined benefit pension of €2,400/month. Under IRC § 72, approximately €400/month is excluded as return of after-tax contributions; the remaining €2,000/month is taxable ordinary income reported on Form 1040, line 5b.

Personal savings: plans like SIPPs and Pillar 3a

These are retirement accounts you set up and control yourself, not your employer.

The two most common examples for US expats are the UK Self-Invested Personal Pension (SIPP), a registered personal pension where the saver chooses the investments, and the Swiss Pillar 3a system.

Under the 2025 Swiss Federal Tax Administration rules, employees can deduct up to CHF 7,258, while self-employed people without a second-pillar pension fund can contribute up to 20% of their income, capped at CHF 36,288.

From a US point of view, these accounts often hold investments that need extra attention. PFIC foreign pension exposure is the main concern: if the plan holds foreign mutual funds or pooled investments, Form 8621 may be required under IRC §§ 1291–1298.

Social security-type pensions: state old-age systems

These are government-run retirement benefits such as the UK State Pension, Canada's CPP and OAS, and Germany's national pension system.

They work like social insurance and can still be taxable in the United States unless a treaty specifically changes the result; a totalization agreement mainly coordinates Social Security coverage and contributions, not income tax on the pension payment.

Reporting for this pension type runs through Form 1040, lines 5a/5b, with the treaty deciding how much of that income the US ultimately keeps.

The 4 reference points that govern this category are:

• For 2025/26, the full new UK State Pension is £230.25 per week for someone whose National Insurance record began after April 2016 and has at least 35 qualifying years. From April 2026 (tax year 2026/27), the full new State Pension increases to £241.30 per week, a 4.8% rise under the triple lock.
• US Totalization Agreements decide which country collects social-security-type taxes and combine work years so people do not pay full contributions into both systems and then lose benefits.
• Eshel v. Commissioner shows how carefully courts decide whether a foreign charge is a true income tax or a social security tax before allowing credits or treaty benefits.
• Some systems pay a small lump sum or arrears; Publications 575 and 915 explain that the US normally treats these as pension or annuity income on Form 1040 unless a treaty says otherwise.

Taxable triggers: when the IRS taxes foreign pensions

The taxation of foreign pensions depends on when benefits are paid and how the plan was funded. Some payments are partly taxable using your cost basis, and the general rule or simplified method may apply depending on the arrangement (IRC § 402(b); IRS Publication 939).

The following 3 triggers determine when a foreign pension taxable event occurs for US purposes:

1. Contributions. Your own after-tax payments into a foreign plan are basis: you have already paid US tax on them, and they will not be taxed again at distribution. Employer contributions are different. Under IRC 402(b), employer money to a foreign plan vests and becomes taxable in the year the rights become non-forfeitable, because the IRS does not extend qualified-plan deferral (401(k), IRA) to foreign plans.
2. Investment growth. Income earned inside a foreign pension often does not get the deferral a US 401(k) or IRA receives. The IRS can tax annual growth because the plan does not meet the qualified-plan requirements of IRC §§ 401–402.
3. Distributions. When the plan pays you, Publication 575 and IRS Publication 939 explain how to split each payment between the after-tax basis portion (excluded) and the taxable portion (ordinary income on Form 1040, lines 5a/5b). Form 1116 may reduce US tax on the same payment, but only if the foreign tax qualifies as creditable and subject to the foreign tax credit limitation.

Lump sum distributions

A lump sum is the third trigger condensed into a single payment, and foreign pension lump sum tax treatment is a frequent surprise for US expats.

The taxable portion is generally the gross distribution minus your cost basis, reported in the year received on Form 1040, lines 5a/5b, with no special averaging. Special treaty rules may also apply.

The US does not mirror foreign tax-free lump sum rules. The clearest example is the UK Pension Commencement Lump Sum (PCLS): up to £268,275 is tax-free in the UK, but the same amount is generally taxable in the US unless the US-UK tax treaty provides relief, which it generally does not for US citizens because of the saving clause.

Foreign tax withheld on the lump sum may be creditable on Form 1116, subject to the foreign tax credit limitation.

How to report foreign pension income

Foreign pension income is reported on Form 1040, lines 5a/5b (or 4a/4b for IRA-type accounts). Depending on account value and plan structure, additional forms (8938, FBAR, 8621, or 3520) may also be required. Filing one form does not satisfy the obligation for another.

A broader view of US filings that attach to foreign income sits in the TFX expat tax obligations page.

The following 5 forms may apply to a US taxpayer receiving foreign pension income, depending on account value, plan type, and investment holdings.

Form 1040

Form 1040 is the primary reporting form for foreign pension distributions, and foreign pension reporting for most expats begins and ends with the 5 steps below.

1. Determine the taxable portion using your cost basis. Depending on the arrangement, either the general rule or the simplified method may apply (IRS Publication 939). Subtract after-tax contributions (cost basis) from total distributions.
2. Enter the gross distribution on line 5a. Enter the taxable amount on line 5b. IRA-type accounts use lines 4a/4b. The full line-by-line treatment sits in IRS Topic No. 410.
3. If no Form 1099-R was issued by the foreign payer, attach a statement showing the calculation of basis, taxable amount, and any treaty adjustment.
4. If claiming a treaty-based position, attach Form 8833. Disclosure is required under IRC § 6114, though IRS rules specifically exempt some treaty claims for pensions, annuities, social security, and other public pensions.
5. Apply the foreign tax credit on Form 1116 if foreign tax was withheld on the same income.

TFX client scenario: a US expat in Canada receives a CPP pension of C$14,400/year (~$10,700 USD). Canada withholds 15% under the treaty ($1,605 USD). The full $10,700 goes on Form 1040, line 5b. Form 1116 claims a $1,605 credit, reducing US tax on this income to near zero.

Form 8938

Form 8938 is required when specified foreign financial assets exceed $50,000 (single filer, year-end) or $75,000 (single filer, any point during the year). Married filing jointly thresholds double to $100,000/$150,000. Expats living abroad use higher thresholds: $200,000/$300,000 (single) and $400,000/$600,000 (MFJ).

Many foreign retirement plans are specified foreign financial assets under IRC § 6038D, but the rule is not blanket; each plan should be checked against the Form 8938 instructions and related reporting rules.

Form 8938 foreign pension reporting is broader than the FBAR because it covers assets and interests, not only bank accounts. The asset categories that apply sit in the Form 8938 instructions.

FBAR (FinCEN 114)

The FBAR (FinCEN Form 114) is required when the aggregate value of all foreign financial accounts exceeds $10,000 at any point during the calendar year. The 2026 deadline is April 15, with an automatic extension to October 15.

The legal authority sits at 31 U.S.C. § 5314, and the form is filed through the BSA E-Filing System, not with Form 1040.

A pension with a cash surrender value held in a non-US bank or insurer may qualify as a foreign account for FBAR foreign pension reporting purposes. A self-directed pension holding a foreign bank or brokerage account also counts once the total crosses $10,000.

Form 8621

Form 8621 may be required when a foreign pension plan holds Passive Foreign Investment Companies (foreign mutual funds or pooled investment vehicles) under IRC §§ 1291–1298.

There is a limited exception when the total value of PFIC stock you own does not exceed $25,000 ($50,000 on a joint return), and no other filing trigger applies.

The full filing triggers sit in the Form 8621 overview, and Form 8621 PFIC foreign pension treatment depends on which election the taxpayer makes.

The IRS offers 3 elections to avoid the default PFIC tax regime:

1. QEF (Qualified Electing Fund) election: taxes PFIC earnings annually at ordinary rates, avoiding the interest charge.
2. Mark-to-market election: annual fair market value adjustments treated as ordinary income or loss.
3. Section 1291 deemed sale election: a one-time election that purges PFIC status in transition years.

Form 3520 / 3520-A

Some foreign plans are treated like foreign trusts under IRC § 6048, which triggers Forms 3520 and 3520-A. Many tax-favored retirement plans are exempt from these forms under Rev. Proc. 2020-17, and the earlier Rev. Proc. 2014-55.

Form 3520 foreign pension filing is the exception, not the rule, for qualifying plans, though Form 8938 and other foreign asset reporting obligations may still apply.

Rev. Proc. 2020-17 exempts the following plan types from Form 3520/3520-A filing requirements:

• Tax-favored foreign retirement trusts that meet contribution limits, age-based distribution restrictions, and information-sharing standards.
• Tax-favored foreign non-retirement savings trusts that satisfy the same general conditions.
• Canadian RRSPs and RRIFs are covered separately under Rev. Proc. 2014-55.

Forms still required for these exempt plans, where thresholds are met, include Form 8938 (foreign financial assets) and the FBAR (foreign accounts).

Foreign annuity taxation

A foreign annuity is a contract that pays a fixed income stream from a non-US insurance company or financial institution.

The IRS taxes foreign annuity payments under IRC § 72. The portion representing return of investment (your cost basis) is excluded from US tax. The remainder is taxable ordinary income.

Foreign annuity taxation sits in the same statutory framework as pension distribution rules. The cost-basis math runs through an exclusion ratio foreign annuity calculation, set out in IRS Publication 575.

Foreign tax withheld by the payer may be creditable on Form 1116 if it qualifies under the foreign tax credit rules, subject to the limitation.

How foreign annuity taxation differs from pension taxation

Foreign pension plans are employment-linked retirement arrangements. Foreign annuities are contractual investment products purchased from non-US insurers.

The exclusion ratio under IRC 72 annuity rules works like this:

(Investment in Contract ÷ Expected Return) × Annual Payment = Tax-Free Portion

The remaining amount is taxable ordinary income on foreign annuity Form 1040, lines 5a/5b. If the annuity sits inside a PFIC wrapper, Form 8621 is required in addition to the standard income reporting.

TFX client scenario: a US retiree holds a Swiss life annuity paying CHF 18,000/year.

• Investment in contract: CHF 240,000
• Expected return: CHF 360,000
• Exclusion ratio: 67%
• Tax-free portion per year: CHF 12,000
• Taxable US income: CHF 6,000/year (~$6,600 USD), reported on Form 1040, line 5b

Reporting requirements

The foreign annuity US tax filing footprint extends past Form 1040 once asset thresholds are crossed.

• Form 1040, lines 5a/5b: report all annuity income here.
• Form 8938: include the annuity as a specified foreign financial asset if the total foreign annuity value exceeds $50,000 (single) or $100,000 (married).
• FBAR: applies when the annuity is held in a foreign financial institution account, and the aggregate foreign account value exceeds $10,000 at any point in the year.

2025/2026 updates: what changed for foreign pension holders

Two things happened in 2025 and early 2026 that US expats with foreign pensions should know about: the One Big Beautiful Bill Act (OBBBA) changed several individual tax rules, but current IRS guidance does not identify a separate foreign-pension rule change, and the IRS released updated 2026 withholding forms with no major substantive change.

What OBBBA did not change

The One Big Beautiful Bill Act (P.L. 119-21, signed July 4, 2025) reshaped US tax rates and standard deductions for 2026.

Current IRS guidance does not identify a separate foreign-pension rule change.

The IRC sections that govern foreign pension income (§§ 61, 72, and 402(b)) all continue to apply as before. So do the Form 8938, FBAR, 8621, and 3520 reporting requirements.

The broader IRS framework for foreign pension and annuity distributions is unchanged. For most US expats, the foreign pension 2026 tax rules are the same rules that applied in 2025.

What the IRS released for 2026

The IRS released updated 2026 Forms W-4P and W-4R in December 2025, effective January 1, 2026.

• Form W-4P covers periodic pension and annuity payments.
• Form W-4R covers nonperiodic payments and eligible rollover distributions.

Default withholding rates for 2026:

• 10% for non-periodic payments.
• 20% for eligible rollover distributions.
• Periodic pension and annuity withholding is handled under Form W-4P and the IRS withholding tables.

These rules govern US payers. IRS foreign pension withholding 2026 mechanics for purely foreign payers continue to be set by the source country and any applicable treaty.

Treaties: who taxes and when it changes

A US tax treaty determines which country has primary taxing rights over foreign pension income. Treaties reduce double taxation but almost never eliminate US reporting for US citizens, because the saving clause in each treaty preserves the US right to tax its citizens worldwide.

Treaty treatment varies by country and by pension type, so each treaty, protocol, and saving-clause exception has to be checked on its own.

United Kingdom

The UK lets people take a tax-free pension commencement lump sum of up to £268,275, but the US does not copy that rule.

The US-UK treaty has detailed pension language under Article 17. Under the US-UK tax treaty, UK pension income still goes on Form 1040, lines 5a/5b, because the saving clause preserves US taxation of US citizens.

Form 8833 is required for many treaty-based positions, but IRS rules specifically exempt some treaty claims for pensions, annuities, social security, and other public pensions.

Official text sits at the IRS UK treaty documents page, and a deeper TFX walk-through is in the UK pension guide.

Canada

Canada's Part XIII rules normally withhold 25% on pension payments to nonresidents. The US-Canada treaty often lowers that to 15% for steady monthly payments.

Canada keeps its share first. The US then taxes the same foreign pension on the US return. Canada pension US tax can usually be reduced to a residual amount, or to zero, by claiming the Part XIII tax already withheld in Canada as a foreign tax credit on Form 1116.

Australia

Under Treaty Article 18, Australia usually gets the first shot at taxing private pensions for its residents. The saving clause means the US may still tax its citizens on the same income.

Australian super accounts have pieces that work differently in each system. A foreign pension plan cannot be assumed to be tax-free or tax-deferred in the US unless the treaty clearly says so.

Germany

For a US citizen with a German pension, payments generally follow matching rules in both countries, as written in the US-Germany treaty.

The saving clause still pulls the income onto the US return. Foreign tax credits then reduce any double tax that would otherwise apply. The full treaty text sits at the IRS Germany treaty documents page.

Pension income is only exempt or deferred when a treaty grants one country exclusive taxing rights, and the saving clause does not override it.

For most foreign pension income, the US still taxes the payment, and Form 8833 is required for many treaty-based positions, but IRS rules specifically exempt some treaty claims for pensions, annuities, social security, and other public pensions.

Common mistakes to avoid

Even seasoned expats stumble on reporting foreign pensions. The rules mix income, forms, and information returns in confusing ways, and most foreign pension reporting mistakes TFX sees on amended returns trace back to a small set of recurring errors.

The following 6 mistakes account for most foreign pension reporting errors that TFX corrects on amended returns:

1. Assuming pensions are tax-free. Many filers misclassify pensions as exempt when, in fact, the IRS taxes most foreign pension distributions under IRC §§ 61 and 72.
2. Not reporting passive accounts. Even if a plan is just sitting there, it may trigger Form 8938, FBAR, or Form 8621 PFIC obligations.
3. Skipping FBAR or Form 8938. The FBAR applies when the aggregate foreign account value exceeds $10,000 at any point in the year. FBAR penalties can be severe: willful violations carry penalties up to the current inflation-adjusted maximum or 50% of the account balance per year (31 U.S.C. § 5321), and Bittner held that the non-willful cap applies per report, not per account.
4. Overlooking foreign trust rules. Certain plans may be treated as foreign trusts under IRC § 6048, requiring a check against Rev. Proc. 2020-17 exceptions before filing Form 3520.
5. Asking too late. Among the most common expat pension tax errors is waiting to ask about disclosure rules until after the IRS issues a notice, when penalty mitigation is harder.
6. Applying FEIE to pension income. The Foreign Earned Income Exclusion (Form 2555) covers wages and self-employment income only. FEIE foreign pension treatment is not allowed because foreign pension distributions are not "earned income" under IRC § 911(d)(2). Excluding pension income via FEIE creates an underpayment that triggers accuracy-related penalties under IRC § 6662.

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Special cases: foreign social security and returning expats

Foreign social security and returning-expat scenarios follow the same core reporting rules as foreign pensions: distributions go on Form 1040, treaties may shift taxing rights, and the saving clause typically preserves US taxation for citizens.

Foreign social security

For most retirees, foreign social security is taxable in the US by default, not exempt. The income is treated like any other foreign pension: it goes on Form 1040 unless a treaty clearly gives the other country exclusive taxing rights.

Some treaties shift who taxes first, but the saving clause often brings the income back into US taxation. Always check the treaty article for social security before assuming the benefit is tax-free.

Back in the US with a foreign pension

Each foreign pension payout goes on Form 1040, even after you have moved home. For a returning expat foreign pension, the reporting framework does not change with residency.

What is taxed depends on how the plan was funded and how the contributions were treated. Your own after-tax contributions can be basis, but employer contributions and some foreign contributions may already have been taxed or may not count as basis.

A pre-59½ distribution may be subject to the 10% additional tax under IRC § 72(t) if the foreign plan is treated like a qualified retirement plan or nonqualified annuity contract under US rules, unless an exception is claimed on Form 5329.

The IRS list of exceptions to the 10% early withdrawal tax covers separation after age 55, substantially equal periodic payments (SEPP), disability, and certain medical or birth/adoption expenses.

Conclusion

Handling foreign pensions on your own is risky. A single misstep with reporting or treaty claims can trigger IRS audits, extra tax, and steep fines. The complexity multiplies when plans include mutual funds, early withdrawals, or foreign trust rules.

The foreign pension US tax summary below distills the rules most often missed on amended returns.

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