Section 1291 Fund: PFIC Excess Distributions, Interest Charge, and Elections

A Section 1291 fund is the default, and harshest, way the U.S. taxes a passive foreign investment company (PFIC) when the shareholder has not made a Qualified Electing Fund or mark-to-market election. Under this regime, “excess distributions” and any gain on sale are spread ratably across your entire holding period, taxed at the highest individual rate in effect for each prior year, and then hit with a compounding interest charge as though those taxes had been underpaid all along.¹ Most Americans who end up here didn’t choose to; they bought a foreign mutual fund or ETF without realizing what it was.

How You End Up in the Section 1291 Regime

Section 1291 applies automatically to any U.S. person holding PFIC stock who has not made an affirmative election to be taxed differently. The two alternatives, a Qualified Electing Fund (QEF) election under Section 1295 or a mark-to-market election under Section 1296, both require action on your part and, for QEF, cooperation from the foreign fund. If you missed the window, didn’t know the investment was a PFIC, or the fund refuses to provide the information you’d need, your holding is a “Section 1291 fund” by default.²

The investments that most commonly land in this bucket are foreign mutual funds, foreign exchange-traded funds, offshore hedge funds, pooled investment vehicles, and offshore investment trusts. A foreign operating company, such as an overseas manufacturer or retailer, usually isn’t a PFIC because its income comes from active business. U.S.-based mutual funds are not PFICs even when they hold foreign stocks, because the rules apply only to foreign corporations.

You don’t have to hold the shares directly. If you’re a partner in a partnership, or a beneficiary of an estate or nongrantor trust that owns PFIC stock, you’re treated as owning a proportionate share, with no minimum threshold.³

How the Tax Bill Is Built

Everything under Section 1291 turns on the “excess distribution.” A distribution you receive in a given year is excessive to the extent it exceeds 125 percent of your average distributions over the three preceding years. If you’ve held the shares for less than three years, the average uses whatever period you have. The first year of your holding period gets a pass: there is no excess distribution for that year.¹

The portion of a distribution that falls at or below the 125 percent line is the “nonexcess distribution.” It’s taxed under ordinary dividend rules and, for individuals, flows through to Form 1040 as dividend income.² Anything above the line gets fed into the allocation-and-interest machinery.

Allocation Across the Holding Period

The excess amount is allocated ratably to each day you’ve held the stock. Two buckets of that allocation are taxed at your regular rate for the current year: the piece allocated to the current tax year itself, and any piece allocated to days before the fund became a PFIC. Both are included in gross income as ordinary income.¹

Top Rate on Every Other Prior Year

Everything allocated to the remaining prior years in your holding period is taxed at the highest individual income tax rate that was in effect for that year. For 2026, that top rate is 37 percent. Your actual bracket in those years is irrelevant. Every taxpayer, regardless of income, pays the top rate on those allocated slices.¹

The Interest Charge

The IRS then treats each of those prior-year tax amounts as if you had underpaid tax in each of those years. It charges interest from the original due date of that year’s return through the due date of the current return.¹ The rate is the federal short-term rate plus three percentage points, adjusted quarterly.⁴ For the first quarter of 2026, that rate is 7 percent, compounded daily.⁵ On a fund held ten years or more, the compounding interest alone can eat much of the investment gain.

Selling a Section 1291 Fund

Selling doesn’t get you out. Any gain on disposition is itself treated as an excess distribution and runs through the same allocation-and-interest machinery.¹ The whole gain, not just an amount above some threshold, is spread across the holding period and taxed at the top rates with interest. Long-term capital gains rates do not apply.

Losses are handled differently. A loss on the sale of Section 1291 fund stock is not run through the Section 1291 machinery, so it can’t offset the excess distribution income on other PFIC shares. It may still be recognized as a capital loss under the ordinary rules of the tax code.² Gains get the worst treatment; losses get ordinary treatment. That asymmetry is deliberate.

How to Get Out: QEF, Mark-to-Market, and Purging Elections

Two elections let you avoid Section 1291 going forward, and a “purging” step handles the accumulated taint if you already hold the fund.

Qualified Electing Fund Election

A QEF election requires you to pick up your pro rata share of the fund’s ordinary earnings and net capital gain in income each year, whether or not any cash is distributed.⁶ In exchange, ordinary earnings are taxed at your actual rate and net capital gains can qualify for the long-term capital gains rate. The election depends on the foreign corporation supplying an annual PFIC information statement, and many foreign funds simply refuse. Without the statement, the election isn’t practically available.

Mark-to-Market Election

The mark-to-market election lets you recognize gain or loss each year based on the change in fair market value of the shares. Increases are ordinary income; decreases are deductible, but only up to the total of your prior mark-to-market inclusions (your “unreversed inclusions”). The election is available only for PFIC stock that is marketable on a qualified exchange, and gains and losses under it are ordinary rather than capital.⁷

Purging the Section 1291 Taint

If you already own a Section 1291 fund and want to switch to QEF status, a purging election is generally required. Without one, the fund becomes an “unpedigreed QEF” and Section 1291 continues to apply to prior-period gains. There are two options.²

Deemed sale election (Election D). You’re treated as if you sold the stock at fair market value on the first day the fund qualifies as a QEF. Any resulting gain is taxed as an excess distribution, with full allocation-and-interest treatment. Your basis resets to the deemed sale price and the holding period restarts. Losses on a deemed sale are not recognized.
Deemed dividend election (Election E). You’re treated as receiving a dividend equal to your share of the PFIC’s post-1986 earnings and profits. That deemed dividend is taxed as an excess distribution. Your basis increases by the dividend amount and the holding period restarts. A statement showing your earnings-and-profits calculation must be attached to Form 8621.

Either purging election must be made by the due date, including extensions, of your return for the year the fund first qualifies as a QEF, or by amended return within three years of the original due date.² You pay a one-time toll charge to escape Section 1291, and future income is taxed under the friendlier QEF rules.

Form 8621 and the De Minimis Exceptions

Section 1291 shareholders report on Form 8621, filed for each PFIC and attached to your tax return by the same due date, including extensions.² You’ll need the acquisition date, original cost basis (including brokerage fees), a three-year distribution history, and, if you sold, the sale proceeds. Foreign corporations rarely issue 1099s, so distribution data usually has to come from brokerage or bank statements. Building the file as you go is easier than reconstructing years of history later.

Two de minimis exceptions excuse you from completing Part I of the form, provided you did not receive an excess distribution or recognize a gain on sale during the year.

Aggregate value of $25,000 or less. If the total value of all your PFIC holdings on the last day of your taxable year is $25,000 or less ($50,000 for joint filers), you’re exempt from filing for each Section 1291 fund.²
Indirect ownership of $5,000 or less. If you indirectly own a Section 1291 fund and your proportionate share is worth $5,000 or less on the last day of the year, you’re exempt for that fund.²

Both exceptions disappear the moment you take an excess distribution or realize a gain. In that year you file regardless of the dollar amount.

What Happens If You Don’t File

The penalty most people underestimate isn’t a dollar figure; it’s time. If you fail to file Form 8621, the statute of limitations on your entire tax return for that year stays open until three years after you finally furnish the required information. The IRS can, in effect, audit that return indefinitely. If the failure is due to reasonable cause rather than willful neglect, the extended assessment period applies only to items related to the missing information, not the whole return.⁸

The Form 8621 instructions warn generally that failure to file, failure to provide required information, or providing fraudulent information can result in penalties and criminal prosecution. They do not spell out specific dollar penalties the way some other international information returns do.² In practice, the open statute is often the bigger exposure.

What Happens at Death

One boundary worth flagging: Section 1291 stock does not follow the usual stepped-up-basis rule at death. Under proposed Treasury regulations, transfer of Section 1291 stock at death is treated as a taxable disposition, meaning the excess distribution rules and interest charges can apply at that point. There is an exception when the stock passes to a domestic estate or directly to a U.S. person, though the heir who eventually sells may still face Section 1291 treatment. These are proposed regulations and could change, so anyone holding PFIC stock with meaningful unrealized gains should get professional advice before finalizing an estate plan.

1
Office of the Law Revision Counsel. 26 USC 1291 – Interest on Tax Deferral
2
Internal Revenue Service. Instructions for Form 8621
3
Office of the Law Revision Counsel. 26 USC 1298 – Special Rules
4
Office of the Law Revision Counsel. 26 USC 6621 – Determination of Rate of Interest
5
Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026
6
eCFR. 26 CFR 1.1293-1 – Current Taxation of Income From Qualified Electing Funds
7
Office of the Law Revision Counsel. 26 USC 1296 – Election of Mark to Market for Marketable Stock
8
Office of the Law Revision Counsel. 26 USC 6501 – Limitations on Assessment and Collection