FlagSageWhat this covers
PFIC is a US tax classification for foreign corporations whose income or assets are mostly passive. It matters to US citizens and residents who invest through funds organized outside the United States, because the PFIC rules can change how gains and distributions are taxed and add an annual reporting form. The rules apply to the US shareholder, not to the fund, so a fund that is ordinary in its home country can still be a PFIC for a US investor.
Check the two tests that make a foreign corporation a PFIC
The Form 8621 instructions say a foreign corporation is a PFIC if it meets either test. Under the income test, 75% or more of its gross income for the tax year is passive income. Under the asset test, at least 50% of the average percentage of its assets produce passive income or are held to produce it.
A look-through rule treats the corporation as holding its share of the assets and income of any corporation in which it owns at least 25% of the stock by value. Publicly traded foreign corporations must use fair market value for the asset test.
See the PFIC glossary entry for a short definition.
Understand why foreign funds are the common case
A pooled investment fund earns mostly dividends, interest and gains, and holds mostly investment assets. Where such a fund is organized as a corporation outside the United States, it can meet the PFIC tests. Publication 54 puts it directly: an individual who owns a mutual fund or ETF that is not domiciled in the United States may have a Form 8621 obligation.
The rule turns on where the fund is domiciled, not on what it invests in. The IRS comparison table for foreign account reports treats a domestic mutual fund investing in foreign stocks differently from a foreign mutual fund, and the same distinction is the starting point for PFIC questions.
This often surprises people who moved abroad and opened a local savings or investment account. Holdings that are routine for local residents can bring US reporting for a US citizen. See US citizens abroad.
Check when Form 8621 is required
The instructions say a US person who is a direct or indirect shareholder of a PFIC generally files Form 8621 for each tax year in which they receive certain distributions from a PFIC, recognize gain on disposing of PFIC stock, report information for a qualified electing fund or mark-to-market election, make an election reportable in Part II, or must file the annual report under section 1298(f).
A separate Form 8621 is filed for each PFIC. Where one PFIC owns another, a form is generally needed for each PFIC in the chain. The form is attached to the tax return and filed by its due date, including extensions. If you have no return to file for the year, the instructions say to send Form 8621 directly to the IRS Service Center in Ogden, Utah.
Indirect ownership counts. The instructions treat a US person as an indirect shareholder in cases such as owning a pass-through entity that holds PFIC stock, or owning a PFIC that holds another PFIC.
Compare the three ways PFIC income can be taxed
The PFIC rules give three tax treatments. Which one applies depends on whether an election was made and when. The descriptions below follow the Form 8621 instructions in plain terms and leave out many details.
| Regime | When it applies | How income is treated |
|---|---|---|
| Section 1291 fund (excess distribution rules) | The default, when no qualified electing fund or mark-to-market election applies, or the fund is an unpedigreed qualified electing fund | An excess distribution, and the entire gain on a sale, is spread over each day of the holding period. The part for the current year and pre-PFIC years is ordinary income. The part for earlier PFIC years is subject to a separate tax and an interest charge. |
| Qualified electing fund (QEF) | The shareholder elects under section 1295 and the fund provides a PFIC Annual Information Statement | Each year the shareholder includes its share of the fund's ordinary earnings as ordinary income and its share of net capital gain as long-term capital gain, whether or not distributed. |
| Mark-to-market | The shareholder elects under section 1296 and the stock is marketable stock, such as stock regularly traded on a qualifying exchange | Any increase in value over adjusted basis at year end is ordinary income. Decreases are ordinary losses only to the extent of earlier net inclusions, called unreversed inclusions. |
Read how an excess distribution is measured
The instructions define an excess distribution as the part of a current-year distribution that is greater than 125% of the average distributions received during the 3 preceding tax years, or a shorter holding period if you have not held the stock that long. No part of a distribution in the first year of the holding period is an excess distribution.
The amount is figured per share and allocated to each day you held the stock. That allocation is what links a gain today to tax and interest for past years, and it is why records of purchase dates and prices matter for each fund.
Elections made late can be different from elections made in the first year. The instructions describe deemed sale and deemed dividend elections that can turn a fund into a pedigreed qualified electing fund when the election was not made at the start.
Check the small-holding exception to Part I
The instructions describe a limited exception. A shareholder does not have to complete Part I, the annual summary, for a specific section 1291 fund if the total value of all PFIC stock the shareholder owns is $25,000 or less on the last day of the tax year ($50,000 or less on a joint return), and the shareholder did not receive an excess distribution from that fund or recognize gain on selling it.
A separate exception covers indirect ownership of a section 1291 fund worth $5,000 or less on the last day of the year, under the same no-distribution and no-gain conditions. These exceptions are narrow. They cover Part I for section 1291 funds, not every PFIC situation, and they end once there is an excess distribution or a sale with gain.
Look at holdings that are not treated as PFIC ownership
The instructions say a US person who owns PFIC stock through certain tax-exempt organizations or accounts is not treated as a shareholder. The list includes plans described in section 401(a), 403(b) and 457(b), individual retirement plans or annuities, and qualified tuition and ABLE programs.
There is also a Part I exception for some members or beneficiaries of an arrangement treated as a foreign pension fund under a US income tax treaty. Whether a particular foreign pension or savings plan fits one of these descriptions depends on the plan and the treaty, so treat it as a question for a professional.
Connect PFIC reporting with your other foreign reports
PFIC reporting sits alongside the foreign account reports. The IRS comparison table says foreign mutual funds are reportable on both Form 8938 and the FBAR. The Form 8938 page says an asset reported on Form 8621 does not need to be listed again on Form 8938, but you still count its value toward the threshold and note the Form 8621 in Part IV.
See FBAR vs Form 8938, the Form 8938 entry, and assets for the wider picture. If past years were missed, see streamlined filing compliance.
Common misconceptions
Questions to take to a professional
- Which of my funds, ETFs or structured products are organized outside the United States?
- Has any of my foreign funds been a PFIC since I bought it, and when did my holding period start?
- Does each fund provide a PFIC Annual Information Statement that would allow a qualified electing fund election?
- Is any of my PFIC stock marketable stock for a mark-to-market election?
- Do my holdings fit the $25,000 or $50,000 Part I exception this year?
- Are any funds held inside a foreign pension or savings plan that a treaty or the Code treats differently?
- How should I keep purchase dates, prices and distribution records for each fund?
Questions people ask
Is a foreign ETF a PFIC?
Often it can be, because a foreign fund organized as a corporation usually earns mostly passive income and holds mostly passive assets. Publication 54 says an individual who owns a mutual fund or ETF not domiciled in the United States may have a Form 8621 obligation. Each fund still has to be checked.
What is Form 8621 used for?
The IRS says a US person who is a direct or indirect shareholder of a PFIC files Form 8621 when receiving certain distributions, recognizing gain on disposition, reporting a QEF or mark-to-market election, making a Part II election, or filing the annual report required by section 1298(f). A separate form is filed for each PFIC.
Is there a minimum amount before Form 8621 is required?
The instructions give an exception from completing Part I for a section 1291 fund when all PFIC stock is worth $25,000 or less at year end ($50,000 on a joint return) and there was no excess distribution or gain. It does not apply once you receive an excess distribution or sell at a gain.
What is a QEF election?
A qualified electing fund election under section 1295 makes the shareholder include its share of the fund's ordinary earnings and net capital gain each year. The fund must provide a PFIC Annual Information Statement, and the shareholder must keep copies of forms and statements.
Do I file Form 8621 if I do not need to file a tax return?
The instructions say that if you are not required to file a return for the year, you file Form 8621 directly with the IRS Service Center in Ogden, Utah. Whether you have a Form 8621 duty in that year depends on the five circumstances listed in the instructions.
Where this guide stops. A qualified US tax professional, such as an enrolled agent, a certified public accountant or a tax attorney, identifies which holdings are PFICs, decides with you whether any election is possible, and prepares Form 8621. The fund or its intermediary must supply an annual information statement for a qualified electing fund election. FlagSage does not classify investments or prepare forms.
Sources
- Instructions for Form 8621 (12/2025)Official guidance
- About Form 8621, Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing FundOfficial guidance
- Publication 54 (12/2025), Tax Guide for U.S. Citizens and Resident Aliens AbroadOfficial guidance
- Comparison of Form 8938 and FBAR requirementsOfficial guidance
- Do I need to file Form 8938, Statement of Specified Foreign Financial Assets?Official guidance
Related
- Countries covered
- United States
- Sources
- 5 sources listed above
- Tax year
- Current rules as checked
- Review
- Not professionally reviewed
Sources checked November 9, 2026