PFICs, Form 8621, and why a foreign index fund is the problem
Form 8621 is not required where your aggregate PFIC stock is worth $25,000 or less, or $50,000 or less on a joint return, and there is no excess distribution or disposition. An excess distribution is the part above 125% of the average of the three preceding years.
A United States person holding stock in a passive foreign investment company generally files Form 8621. The filing exception applies where the aggregate value is $25,000 or less, or $50,000 or less on a joint return, on the last day of the tax year, and there is no excess distribution and no recognised gain. An excess distribution is the part of a distribution above 125% of the average of the three preceding years.
The ordinary foreign fund is the trap
A passive foreign investment company sounds like a structure somebody chose. In practice the commonest one an American abroad owns is a perfectly ordinary index fund bought from a perfectly ordinary local broker, because a pooled investment vehicle organised outside the United States generally meets the definition on its income or its assets.
Nothing about the investment has to be exotic, offshore, or tax-motivated. The classification follows from what the company holds and earns, not from anyone's intention, and it applies to the shareholder rather than being something the fund can fix.
That is why this page exists in a set about reporting rather than in a set about investing. The reader who needs it is usually somebody who did the sensible local thing and is finding out afterwards.
The exception, and the two conditions it carries
The de minimis exception from filing applies where the aggregate value of PFIC stock is $25,000 or less on the last day of the tax year, or $50,000 or less on a joint return, and there is neither an excess distribution nor a recognised gain in the year.
Both halves matter and the second is the one that catches people. A holding comfortably under the value ceiling loses the exception entirely if it distributed enough to produce an excess distribution, or if any of it was sold at a gain.
It is an exception from FILING and nothing more. It does not exempt the shareholder from the section 1291 tax when either of those events happens, which is the reason the exception is written to fall away exactly when they do.
What the instructions say about the filing exception
The quote below is the sentence this figure was read from, stored with a hash of the text as it stood on 06 September 2026. If the document changes, the hash stops matching and the change is surfaced rather than absorbed.
“has a value of $25,000 or less ($50,000 or less in the case of a joint return) on the last day of the U.S. person's tax year and on any day during the tax year on which the U.S. person disposes of stock of the foreign corporation;”
That is Instructions for Form 8621, Exceptions From Filing, IRC 1298(f) regulations, de minimis test, from Instructions for Form 8621, Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund, read on 06 September 2026. The sentence above is archived with a hash of its text as it stood that day, so a change at source shows up here rather than being absorbed silently.
The rule also carries a note from the ingest, which is worth reading because it is the sort of thing normally left where only a maintainer would see it: “An exception from FILING, and only from filing. It does not exempt the shareholder from the section 1291 tax on an excess distribution or a disposition, and it is lost entirely if there is an excess distribution or a recognised gain in the year.”
125% of the average of three years
An excess distribution is the part of the current year's distribution above 125% of the average of the three preceding years, or of the holding period if that is shorter. The arithmetic is simple; the first year is where it bites.
| Distributions in the three prior years | Average | Threshold | Distribution this year | Excess |
|---|---|---|---|---|
| $1,000, $1,000, $1,000 | $1,000 | $1,250 | $1,200 | None |
| $1,000, $1,000, $1,000 | $1,000 | $1,250 | $2,000 | $750 |
| $0, $2,000, $4,000 | $2,000 | $2,500 | $2,400 | None |
| $0, $2,000, $4,000 | $2,000 | $2,500 | $9,000 | $6,500 |
| None: first year held | $0 | $0 | $500 | $500, all of it |
- Every threshold in the third column is 125% of the second, computed rather than quoted. The rate is the sourced fact.
- The last row is the one worth staring at. A fund bought and distributed from in the same year has no preceding years to average, so the threshold is zero and the entire distribution is an excess distribution. The simplest-looking case is the worst one.
What the instructions say about excess distributions
The quote below is the sentence this figure was read from, stored with a hash of the text as it stood on 06 September 2026. If the document changes, the hash stops matching and the change is surfaced rather than absorbed.
“An excess distribution is the part of the distribution received from a section 1291 fund in the current tax year that is greater than 125% of the average distributions received in respect of such stock by the shareholder during the 3 preceding tax years (or, if shorter, the portion of the shareholder's holding period before the current tax year).”
That is Instructions for Form 8621, Excess distribution, IRC 1291(b), from Instructions for Form 8621, Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund, read on 06 September 2026. The sentence above is archived with a hash of its text as it stood that day, so a change at source shows up here rather than being absorbed silently.
The rule also carries a note from the ingest, which is worth reading because it is the sort of thing normally left where only a maintainer would see it: “The first distribution a shareholder ever receives has no three preceding years to average, so the threshold is zero and the whole distribution is an excess distribution. A fund bought and distributed from in the same year is the worst case rather than the simplest.”
Why the default treatment is punitive by design
Where no election has been made, an excess distribution or a gain on disposal is allocated back across the whole holding period, taxed in each earlier year at that year's highest rate, and charged interest as though the tax had been due then. The result can exceed the economic gain, and it is meant to: the regime exists to remove the advantage of deferring income inside a foreign vehicle.
Two elections change that, and both have to be made in time. A qualified electing fund election taxes the shareholder currently on their share of the fund's income, which requires information the fund must be willing to produce and many non-United States funds simply will not. A mark to market election is available for stock that is regularly traded on a qualifying exchange.
This page states neither election's mechanics as figures, because this site holds no rule for them. What it states is the two thresholds and the multiple, each with its sentence and its section.
What the exception does not do
- It does not stop the stock being a PFIC. Classification is unaffected by whether a form is filed.
- It does not carry across to Form 8938 or the FBAR. The same holding can be under the $25,000 PFIC filing exception and squarely inside the Form 8938 thresholds, which are a different test on a wider category of assets.
- It does not survive a sale at a gain, however small the holding.
- It does not apply per fund. The test is aggregate value across all PFIC stock, so a portfolio of small holdings is measured together.
Why so few pages state the threshold correctly
The de minimis rule has two conditions and a joint variant, so an accurate summary of it is three clauses long and an inaccurate one is a single number. The single number gets written more often.
The multiple is worse, because 125% of a three-year average is a formula rather than an amount, and a page that wants a figure to put in a heading has nothing to put there. The result is that most pages on this subject describe the regime's severity at length and state its two mechanical tests vaguely or not at all.
How to check a figure you found somewhere else
The reason this subject is unreliable online is not that writers are careless. It is that the figures change annually, they are published in documents nobody reads for pleasure, and a page that was right when it was written stays online long after it stops being right. A page with no date on the figure is not making a claim you can check.
Which tax year does this apply to?
And is that the year the income was earned or the year the return is filed? The two are different years and most pages do not say which they mean.
What document set it?
Does the page name the section, or does it name the website? A citation to a government home page is not a citation to anything a reader can check.
When was it read?
And does the page say? A figure with no read date is a figure whose staleness cannot be assessed, which is the same as an unsourced one.
Applied to the PFIC filing thresholds, those three questions are answerable from this page: every figure names its tax year, its source document and section, and the date it was read, and the sentence it came from is archived with a hash so a change at source shows up rather than being absorbed silently.
That standard is not a courtesy. A calculator or a guide that quietly serves last year's figure produces an answer no reader can distinguish from the right one, which is worse than an obvious error and far harder to notice.
Where this sits alongside the calculators
Reporting obligations and tax liability are different questions and they are answered by different parts of this site. This page is about the PFIC filing thresholds: a threshold or an amount set by a document, which either applies to you or does not.
The calculators answer the other question. They take a gross salary in one of the jurisdictions this site models and compute what is actually deducted from it, band by band, with each rate carrying the rule behind it. Every one of those jurisdictions has been checked against the average tax rates the OECD publishes for a single person at three different incomes, and any jurisdiction that missed by more than half a percentage point is not published at all.
Somebody working abroad usually needs both. The domestic calculation tells you what the country you live in takes. Pages like this one tell you what your home country still wants to know about. Neither substitutes for the other, and a page that blurs them is the reason so many people abroad discover a reporting obligation years late.
What this site does not do
It does not give advice, and it does not model your situation. Everything here assumes a single person on employment income with no dependants and no reliefs beyond those stated, because that is the only shape that can be computed identically across jurisdictions and compared honestly.
It does not model treaty relief, foreign tax credits, remittance rules, self-employment, or the interaction between two countries taxing the same income. Those are real and they change answers, and each of them requires facts about you that a page cannot know.
What it does do is state the underlying figures accurately, with their sources, and compute the domestic position in each jurisdiction it covers. That is the input every adviser asks for first, and it is the part most often wrong on the pages that rank above this one.
Every figure on this page, and where it came from
Every figure above is a rule in a store, carrying the document it came from, the section that set it, the date it was read and an archived copy of the sentence. Where this site holds no rule for a fact, the fact is not stated. Here is the whole set, so the page can be checked rather than believed.
Questions about the PFIC filing thresholds
Do I have to file Form 8621 for a small foreign fund holding?
Not if your aggregate PFIC stock is worth $25,000 or less on the last day of the year, or $50,000 or less on a joint return, AND there is no excess distribution and no gain recognised in the year. Both conditions are required, and the value test is aggregate across all PFIC stock rather than per fund.
What counts as an excess distribution?
The part of the current year's distribution above 125% of the average of the three preceding years, or of your holding period if shorter. In the first year you hold the stock there is nothing to average, so the whole distribution is an excess distribution.
Is a normal foreign index fund a PFIC?
Very often, yes. The classification follows from what the company holds and earns, so a pooled investment vehicle organised outside the United States generally meets it. Nothing about the investment has to be unusual, and the fund cannot fix it for you.
Does the filing exception mean I owe no tax?
No. It is an exception from filing the form and nothing else. The section 1291 tax on an excess distribution or a disposal is unaffected, which is why the exception falls away in exactly the years either of those happens.
Does being under the PFIC threshold mean I am under the others?
No, and they are not related. Form 8938 tests a wider category of specified foreign financial assets against its own set of thresholds, and the FBAR tests foreign financial accounts against a different one again. A holding under the $25,000 PFIC exception can be well inside both.
What if my question is about the Form 8938 thresholds or Form 3520 instead?
Each has its own page here, built the same way from its own rules. If the question is what you owe on a salary rather than what you must report, the calculators are the other half of this site. And the PFIC filing thresholds carries its tax year on every figure, because the year a rule applies to is not the year you file it.
Related, and built the same way
These come up in the same conversation as the PFIC filing thresholds, and for the same reason: the obligations in this subject overlap, and meeting one of them says nothing about whether another applies.
Form 8938 thresholds, all ten of them
Form 8938 has ten thresholds, not one: filing status crossed with whether you live abroad crossed with whether the test is the last day of the year or any time during it. A single filer abroad reports at $200,000 on the last day; the same person living in the US reports at $50,000.
Form 3520, and the two thresholds that are not the same number
A gift from a foreign individual is reportable above $100,000. A gift from a foreign company or partnership is reportable above $20,573 for tax year 2026, because that one is indexed and the other is not.
Controlled foreign corporations, and the two percentages that decide everything
A United States shareholder owns 10% or more of a foreign corporation by vote or value. The company is a controlled foreign corporation when those shareholders together own more than 50%. Both are measured including stock you own constructively.
Ruleset sha256:fe993d9d072cbcac. This guide turns on 3 rules, all at ingested status. Method on methodology, full provenance on the source of record, every reading on the changelog, and anything we got wrong on corrections.
Written by Usain Olivard, who is not a qualified tax adviser. The most recent figure on this page was read from its source on 06 September 2026, which is the same date this page reports as its last modification.