Section 1291 PFIC excess distribution rules explained for US expats
Section 1291 is the default PFIC tax regime for a US person who owns a passive foreign investment company and has not made a timely QEF or mark-to-market election. For the 2025 tax year filed in 2026, it can turn certain PFIC gains and distributions into a special tax-and-interest calculation on Form 8621, instead of normal long-term capital gain treatment.
A Section 1291 PFIC is usually taxed under the default excess distribution rules unless a valid QEF or mark-to-market election applies. A gain on sale is generally treated as an excess distribution, allocated across the holding period, taxed using prior-year highest rates, and charged interest on deferred tax.
US expats often encounter PFIC rules through non-US mutual funds, ETFs, pooled investment funds, certain foreign investment companies, and some insurance or investment wrappers. The legal test is not the product name – it is whether the foreign corporation meets the 75% passive-income test or the 50% passive-asset test under IRC §1297.
We explain the broader PFIC problem in its guide to PFIC taxes for US expats, and the filing mechanics are covered in our guide to Form 8621 for PFIC reporting.
What is Section 1291?
Section 1291 is the IRC 1291 “interest on tax deferral” regime for PFICs in 26 U.S.C. §1291. It applies by default when a US person owns PFIC stock and has not made another valid PFIC election, such as a QEF election under §1295 or a mark-to-market election under §1296.
Under 26 U.S.C. §1291, an excess distribution is allocated ratably to each day in the shareholder’s holding period. The current-year portion is included in gross income, while prior PFIC-year portions create a deferred tax amount plus interest.
This article is about IRC / 26 U.S.C. §1291, not 28 U.S.C. § 1291. The latter is a federal court jurisdiction statute about appeals from final district court decisions, so it has nothing to do with PFIC taxation, Form 8621, or the 1291 tax calculation.
A US expat who buys a foreign mutual fund in 2019 and sells it in 2025 may expect ordinary brokerage reporting. PFIC rules can override that expectation, which is why our guide to foreign investing tax implications and its overview of US tax forms for expats are useful must-reads.
What is a Section 1291 fund?
A Section 1291 fund is a PFIC taxed under the default §1291 regime, not a separate category of investment account. The IRS instructions say a PFIC is a section 1291 fund if the shareholder did not make a QEF or mark-to-market election, or if the PFIC is an unpedigreed QEF.
What is a Section 1291 fund? In plain English, a 1291 fund is a foreign corporation that meets the PFIC definition and remains under the default rules. For expats, this can include non-US mutual funds, non-US ETFs, pooled investment funds, certain foreign investment companies, and some insurance or investment wrappers.
The PFIC definition itself is broad: a foreign corporation can be a PFIC if 75% or more of its gross income is passive income, or if at least 50% of its assets produce or are held to produce passive income. These tests often capture retail funds marketed outside the United States.
IRS Publication 54 confirms the larger expat rule that US citizens and resident aliens generally remain subject to US tax on worldwide income while living abroad. That worldwide-income principle is one reason a foreign fund held in France, the UK, Canada, Australia, or Singapore can still trigger US PFIC reporting.
Insurance-linked investments need extra care. Our guide to assurance vie tax issues for US expats explains one common French wrapper, and our article on foreign tax-deferral schemes not recognized in the US explains why local tax deferral does not always carry over to a US return.
What counts as an excess distribution?
An excess distribution generally means the current-year distribution from a Section 1291 fund that exceeds 125% of the average distributions received during the prior 3 tax years, or the shorter prior holding period. Under §1291, gain on disposition of PFIC stock is also generally treated as an excess distribution.
What is excess distribution? For PFIC purposes, it is not just a large dividend. It is a statutory calculation that compares current-year distributions with the prior 3-year average and then allocates the excess amount across the shareholder’s holding period.
A gain from selling, transferring, or pledging stock of a section 1291 fund is treated as an excess distribution under the IRS Form 8621 instructions. That is why a 2025 sale of a foreign ETF can produce a PFIC excess distribution even if the fund never paid a cash dividend.
The excess distribution PFIC rules are different from ordinary foreign dividend reporting. See TFX’s guide to taxation of foreign dividends for US taxpayers for the baseline dividend rules before PFIC overrides apply.
How are PFIC excess distributions taxed?
PFIC excess distributions are taxed by allocating the excess amount across the full holding period, day by day. The 2025 current-year portion is taxed in the current return, while prior PFIC-year portions are taxed at the highest rate for those years, plus an interest charge under §1291(c).
How are excess distributions taxed? The prior-year amounts are not simply taxed at the taxpayer’s actual marginal rate for those years. The IRS instructions for 2025 list 37% as the highest individual rate for calendar years 2018–2025, which is why Section 1291 can feel punitive.
The December 2025 IRS Instructions for Form 8621 explain that the current-year and pre-PFIC-year portions are treated as ordinary income. The prior PFIC-year portions are subject to a separate tax and interest charge, rather than normal dividend or long-term capital gain reporting.
The IRS PDF instructions for Form 8621 also state that line 16f interest is charged from the due date of the return for the year to which the tax increase is attributable through the due date of the return for the year of the excess distribution. Extensions do not change that interest period.
A section 1291 income amount can also interact with foreign tax credits, NIIT, and state tax treatment, depending on the facts. For complex PFIC returns, using our expat tax return preparation service can help coordinate the Form 8621 calculation with the rest of the 2025 return.
Is PFIC excess distribution taxed as capital gain?
A PFIC excess distribution is generally not taxed like a normal long-term capital gain under the default §1291 rules. When a US person sells stock of a section 1291 fund, the section 1291 gain is treated as an excess distribution instead of receiving ordinary capital gain treatment.
The phrase excess distribution capital gain is usually a red flag: under default PFIC rules, the issue is not whether the asset was held more than 1 year. The issue is whether §1291 overrides the ordinary capital gains framework and imposes the separate tax-and-interest method.
Long-term gain on excess distributions is generally not the right reporting label for a default PFIC sale. The gain may have come from a multi-year holding period, but §1291 can still allocate the gain across prior PFIC years and charge interest.
US expats should also check whether a PFIC inclusion affects the net investment income tax. TFX explains the 3.8% tax separately in our guide to net investment income tax for expats.
A normal foreign stock sale may receive 0%, 15%, or 20% long-term capital gain treatment, while a PFIC under §1291 can use prior-year highest rates, including 37% for 2018–2025, plus interest.
| Issue | Normal foreign stock | PFIC under §1291 |
|---|---|---|
| Main form | Schedule D and Form 8949 | Form 8621, usually Part V |
| Long-term rate | May qualify after more than 1 year | Generally not treated as normal long-term capital gain |
| Sale gain | Capital gain or loss rules usually apply | Gain is treated as an excess distribution |
| Prior-year allocation | Not usually required | Allocated across each day of the holding period |
| Interest charge | No §1291 interest charge | Interest applies to prior PFIC-year tax increases |
| Loss treatment | Capital loss rules may allow use within limits | Loss does not reduce gain subject to §1291, though another Code provision may apply |
PFIC excess distribution calculation: step-by-step example
A PFIC excess distribution calculation divides the excess amount by the number of days in the holding period, assigns the amount to each tax year, taxes current-year and pre-PFIC-year amounts differently, and computes interest on prior PFIC-year tax increases. Form 8621 usually requires a separate attachment for line 16.
Based on our client scenario at TFX: a US citizen living in Germany bought a non-US ETF on January 1, 2019, and sold it on December 31, 2025. The fund was a PFIC for the full 2,557-day holding period; no QEF or mark-to-market election was made, and the sale produced a $14,000 gain.
The simplified PFIC excess distribution example below focuses on the mechanics, not a complete tax return. Real calculations can change because of purchase lots, foreign currency rates, foreign taxes, indirect ownership, prior-year filings, and the exact interest rates under §6621.
The following 6 steps show the basic §1291 allocation method for the $14,000 gain:
- Treat the $14,000 sale gain as a section 1291 excess distribution.
- Count the holding period from January 1, 2019, through December 31, 2025, which is 2,557 days.
- Divide $14,000 by 2,557 days, giving about $5.48 per day.
- Allocate about $1,998 to each 365-day year and about $2,004 to each leap year.
- Treat the 2025 portion as current-year ordinary income on the 2025 return.
- Apply the prior-year highest-rate and interest method to 2019–2024 allocations.
In this simplified 2025 sale, about $1,998 is current-year ordinary income, while about $12,002 is allocated to 2019–2024 and may create roughly $4,441 of tax before credits and interest.
| Tax year | Days | Allocated gain | §1291 treatment concept |
|---|---|---|---|
| 2019 | 365 | $1,998 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2020 | 366 | $2,004 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2021 | 365 | $1,998 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2022 | 365 | $1,998 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2023 | 365 | $1,998 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2024 | 366 | $2,004 | Prior PFIC-year amount taxed at 37%, plus interest |
| 2025 | 365 | $1,998 | Current-year ordinary income concept |
The PFIC excess distribution interest calculation is the part most taxpayers should not attempt casually. Interest is computed separately for each net increase in tax, starting from the original due date of the return for that prior year and ending with the due date of the return for the excess distribution year.
How to report a Section 1291 PFIC on Form 8621
A Section 1291 PFIC is generally reported on Form 8621 for a US person who receives certain PFIC distributions, recognizes gain on a PFIC disposition, reports QEF or mark-to-market items, makes a PFIC election, or has annual reporting under §1298(f). Each PFIC generally needs its own Form 8621.
How to report gain on excess distribution: On the current Form 8621 PDF, a default §1291 sale is generally reported in Part V. The gain goes through line 15f, and the tax-and-interest computation is completed on line 16, often with a separate statement attached.
The IRS instructions list 5 filing triggers for Form 8621. The following 5 triggers are the practical checklist for most US expats with PFIC exposure:
- You receive certain direct or indirect distributions from a PFIC.
- You recognize gain on a direct or indirect disposition of PFIC stock.
- You report information for a QEF or §1296 mark-to-market election.
- You make an election reportable in Part II of Form 8621.
- You must file an annual report under §1298(f).
A 1291 PFIC report can also apply through indirect ownership. The IRS instructions treat some owners of partnerships, S corporations, trusts, estates, and other pass-through arrangements as indirect shareholders when those entities hold PFIC stock.
Section 1291 vs QEF vs mark-to-market election
US PFIC taxation generally has 3 main methods: default §1291, QEF, and mark-to-market. Section 1291 applies by default, QEF requires timely election and annual PFIC information, and mark-to-market generally requires marketable PFIC stock under §1296.
A QEF election can be cleaner when the fund provides a PFIC Annual Information Statement showing ordinary earnings and net capital gain. See our guide to QEF elections for PFIC reporting for the election mechanics and what information a fund must provide.
A mark-to-market election can help for certain regularly traded PFIC stock, but it does not apply to every foreign fund or wrapper. TFX’s broader PFIC tax guide explains how the methods fit together.
The 3 PFIC methods differ mainly by timing, data required, and whether the taxpayer is still exposed to §1291 interest charges.
| PFIC method | When it may apply | Data needed | Tax effect | Main downside |
|---|---|---|---|---|
| Default §1291 | No timely QEF or mark-to-market election applies | Purchase dates, sale dates, distributions, basis, currency rates, prior Form 8621 history | Excess distributions and gains are allocated across the holding period, with prior-year tax and interest | Can be expensive and time-consuming, especially after long holding periods |
| QEF election | Timely election under §1295, usually with PFIC Annual Information Statement | Annual ordinary earnings and net capital gain information | Annual inclusions may avoid excess distribution treatment for a pedigreed QEF | Many non-US retail funds do not provide the required data |
| Mark-to-market election | Marketable PFIC stock under §1296 | Year-end fair market value and adjusted basis | Annual ordinary income or limited ordinary loss based on value changes | May not be available for nonmarketable funds, insurance wrappers, or private funds |
Revenue Procedure 2026-10 added current IRS procedural guidance for retroactive QEF election ruling requests received on or after January 20, 2026. The IRS now emphasizes detailed eligibility review, correct user fees, and documentation showing the government is not prejudiced by the late election.
What if you missed Form 8621 or reported PFICs incorrectly?
A missed Form 8621 can keep the IRS assessment period open for PFIC-related items because §6501(c)(8) applies to information required under §1295(b) or §1298(f). In general, the period may remain open until 3 years after the required information is furnished.
The right correction path depends on at least 5 facts: the tax years involved, whether there was income or gain, whether prior returns were filed, whether the PFIC is still held, and whether any election may still be available. Do not assume that 1 amended return solves every PFIC issue.
The IRS About Form 8621-A page explains late purging elections for certain former PFICs or Section 1297(e) PFICs. Form 8621-A is not a general cure for every late Form 8621, but it can matter when a taxpayer is trying to end ongoing §1291 treatment in specific situations.
At Taxes for Expats, we typically treat missed PFIC work as document-heavy because §1291 calculations are often hourly due to complexity. A long holding period, incomplete cost basis, foreign currency conversions, and multiple purchase lots can materially change the calculation.
Common Section 1291 mistakes US expats make
US expats most often make Section 1291 mistakes by assuming a foreign fund is taxed like a US mutual fund, waiting until sale to ask about PFIC status, or reporting a PFIC sale as normal capital gain. Even a small 2025 foreign ETF sale can trigger Form 8621.
The following 7 mistakes create the most common PFIC problems on expat returns:
- Assuming non-US mutual funds and ETFs are taxed like US funds.
- Ignoring small foreign ETF positions because the account balance feels minor.
- Reporting a PFIC sale as long-term capital gain without checking §1291.
- Missing indirect PFIC exposure through a partnership, S corporation, trust, estate, or wrapper.
- Waiting until the year of sale to reconstruct 5–10 years of distributions.
- Failing to keep purchase dates, sale dates, and basis by lot.
- Assuming a local tax-free or tax-deferred wrapper is also tax-free for US purposes.
The terms excess distributions, S Corp, and PFIC excess distributions should not be mixed together. S Corp excess distributions usually relate to shareholder basis and corporate tax rules, while PFIC excess distributions come from the international tax rules in §§1291–1298.
PFICs can also overlap with FBAR and FATCA reporting because the same foreign account may hold both reportable assets and PFIC investments. TFX’s guide on year-end tax strategies for expats can help prevent the same issue from repeating.
What records do you need for a PFIC excess distribution calculation?
A PFIC excess distribution calculation usually needs records for every tax year in the holding period, not only the sale year. For a 2019–2025 holding period, the preparer may need 7 years of statements, distributions, exchange rates, purchase lots, and prior Form 8621 filings.
The following 9 records are the baseline document set for a default §1291 calculation:
- Purchase dates for each lot of PFIC shares.
- Sale, transfer, pledge, or other disposition dates.
- Cost basis in original currency and US dollars, if available.
- Annual account statements showing year-end values and share counts.
- Dividends and distributions by date and currency for each year.
- Foreign tax withheld on distributions or sale proceeds.
- Exchange rates used for each distribution and sale date.
- Prior-year Forms 8621, if any were filed.
- PFIC Annual Information Statements or QEF statements, if any exist.
The IRS instructions generally require the excess distribution to be calculated in US dollars, with each distribution translated at the spot rate on the distribution date. If all relevant distributions are in a single foreign currency, the instructions describe a single-currency calculation followed by translation of each ratable portion.
When to get professional help with Section 1291 PFIC tax
Professional PFIC help becomes important when the facts include more than 1 PFIC, a long holding period, missing basis, foreign currency issues, prior-year amendments, late elections, large gains, or insurance and pension wrappers. These situations can make Section 1291 tax hard to calculate accurately.
The following 8 triggers are strong signs that DIY Form 8621 work is risky:
- You sold 1 or more foreign funds in 2025.
- You held the PFIC for more than 3 tax years.
- You do not have a complete purchase or distribution history.
- The account uses a foreign currency rather than US dollars.
- You may need amended returns or late disclosures.
- You want to evaluate a late or retroactive QEF-related route.
- The PFIC is inside foreign insurance, assurance vie, pension, or investment-wrapper products.
- The gain is large enough that interest and rate assumptions could materially change the result.
For a quick scope check, use TFX’s Instant Quote when you have the number of PFICs, sale dates, and approximate gain amounts available. For hands-on filing support, the PFIC filing service is the next more direct step.
FAQ about Section 1291 and PFIC excess distributions
The following 8 FAQs answer the highest-intent questions about Section 1291, PFIC reporting, and 2025 tax-year filings due in 2026.
IRC 1291 is the Internal Revenue Code provision that imposes the default PFIC excess distribution regime. It allocates certain PFIC distributions and sale gains across the holding period, taxes prior PFIC-year allocations using the highest applicable rates, and adds an interest charge for tax deferral.
A 1291 fund is a PFIC subject to the default §1291 rules because the shareholder did not make a timely QEF or mark-to-market election, or because the PFIC is an unpedigreed QEF. The term appears in the IRS Form 8621 instructions.
An excess distribution is generally the part of a distribution from a section 1291 fund that exceeds 125% of the average distributions for the prior 3 tax years, or the shorter prior holding period. Gain on a sale of PFIC stock is also treated as an excess distribution.
Generally, no. Under default §1291 rules, gain on disposition of PFIC stock is treated as an excess distribution, not as normal long-term capital gain. The holding period still matters, but it is used to allocate the gain across tax years.
A default §1291 PFIC gain is generally reported on Form 8621, Part V. The sale gain is entered through line 15f, and line 16 is used to compute the tax and interest. A separate statement is usually attached for the allocation.
A cash dividend is not required for §1291 to apply. If you sold PFIC stock at a gain in 2025, the gain itself can be treated as an excess distribution even if the fund never paid you a cash distribution during the holding period.
Possibly, but the rules are narrow. The IRS instructions allow a retroactive QEF election only through the protective statement regime or IRS consent regime, and Revenue Procedure 2026-10 adds current procedural guidance for ruling requests received on or after January 20, 2026.
No. 28 U.S.C. §1291 is about federal appellate court jurisdiction over final district court decisions. PFIC tax uses IRC §1291, also cited as 26 U.S.C. §1291, and is reported through Form 8621 when filing requirements apply.
