United States · Individuals · Corporations

Foreign Investors in US Funds: K-1s, Withholding and Refunds

First collect your K-1 and withholding forms. A US fund can withhold on allocated business income, dividends or sale proceeds. Business income generally requires Form 1040-NR for individuals or Form 1120-F for corporations. You owe the final US tax and claim excess withholding on that return. Correctly withheld trading-only income may qualify for a filing exception.

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Tax year 2026 · Last updated  · Published by Cloud Accounting under standing professional approval

Who this is for

  • Individuals who are nonresidents for US tax purposes and invest in US funds
  • Corporations formed outside the US that invest in US funds
  • Foreign investors receiving Forms 8805, 8288-A or 1042-S with fund tax packages

Not covered here

  • US citizens and US resident individuals living abroad
  • The fund's own withholding returns and payment procedures
  • Detailed return preparation, treaty eligibility and home-country tax calculations
  • State tax calculations and offshore fund structuring

Why did my private equity, real estate or credit fund withhold tax without paying me cash?

A fund taxed as a partnership generally withholds on a foreign investor's share of taxable income connected with a US business, even when the fund keeps the cash. The withholding is a payment toward your US tax; it is not necessarily your final tax rate. IRS: partnership withholding instructions.

Foreign investorGeneral withholding rate on allocated US business income
Individual or other noncorporate partner37%
Corporate partner21%

Preferential rates, eligible deductions or losses certified on Form 8804-C, and state tax withheld for you can reduce withholding. You or your authorized representative sign Form 8804-C and send it to the fund before it files Form 8804; the fund may accept all or part of it. IRS: reductions; Form 8804-C instructions.

The income is called effectively connected income, or ECI. An investor can be treated as conducting the partnership's US business despite living abroad and taking no part in management. IRS: Publication 519, partnerships. A nonresident individual generally must file a US return in that situation, even with no taxable income or when withholding covers all tax. IRS: Form 1040-NR filing requirements.

A private equity fund investing through operating partnerships can pass through business income. A credit fund that regularly originates US loans can also create a US business, unlike qualifying securities trading; activities of agents matter. IRS: nonprecedential lending memorandum.

US real-estate income can be business income. Passive rent generally faces 30% tax on gross rent unless the investor elects net-income treatment under section 871(d) or 882(d). Attach the election statement to your signed Form 1040-NR or 1120-F, generally by the later of 3 years after filing the return or 2 years after paying the tax; deduction deadlines below still apply. See Nonresident landlords and the election rules.

To recover excess withholding, report the income, calculate your final tax and claim the withholding credit on your US return. Form 8805 is the withholding evidence; Schedule K-1 reports your partnership income. For the fund's duties, W-8 documentation and credit-claim procedure, see Foreign partnership withholding.

I'm a nonresident with a K-1 from a US hedge fund: do I file a US return?

A K-1 alone does not decide whether a nonresident must file. An individual may qualify for an exception when the fund has no US business, the reported income qualifies, withholding is correct and no other filing obligation applies. IRS: filing exceptions.

Qualifying trading for an investor's own account can fall within the trading safe harbor, subject to its conditions and dealer exclusion; see When foreign owners owe US tax and IRS: Publication 519.

The Form 1040-NR instructions describe a specific exception for a partner in a US partnership that conducts no US business, whose K-1 includes only US-source income reportable on Schedule NEC, lines 1 through 12. Schedule NEC covers income that is not connected with a US business. If withholding was too low or too high, the instructions require a return to pay the difference or claim the excess. IRS: filing exception for partnership income.

US dividends can still be subject to 30% withholding, unless a treaty or another exemption applies. The trading safe harbor does not remove dividend withholding. IRS: Form W-8BEN instructions.

What the investor receivesWhat to check
K-1 from a trading-only partnershipWhether the partnership has any US business and whether the filing exception covers the reported income
Form 1042-S for US dividendsWhether the income, withholding and any treaty rate are correct
Form 8805 for US business incomeWhether a US return is required and whether withholding exceeds final tax

A foreign corporate investor uses the separate Form 1120-F filing rules. Correctly withheld investment income may fall within a filing exception, but US business activity, a refund claim or uncertain business status changes the analysis; see Foreign company US tax returns and the IRS instructions.

Can I recover tax withheld when I sold or redeemed my fund interest at a loss?

A US return can recover transfer withholding that exceeds your total US tax, including when a sale or redemption produces a tax loss. When a foreign seller's gain would be connected with the fund's US business under section 864(c)(8), section 1446(f) generally requires the buyer, or the fund on a redemption, to withhold 10% of the amount realized, rather than taxable profit, unless an exception is documented. IRS: Form 8288 instructions.

A partnership-interest sale meeting the real-property asset tests can instead fall under FIRPTA, the US real-property withholding rules, generally at 15% of the amount realized. Form 8288-A can document either type of withholding. For FIRPTA, a seller or buyer can apply for a withholding certificate; a seller can seek an early refund with that certificate or a combined application. The IRS generally acts within 90 days after receiving a complete early-refund application. IRS: withholding coordination; FIRPTA certificates and refunds.

A trading-only fund with no US business during the year through the transfer can document an exception; on a redemption it can rely on its records. The taxable business-connected gain is determined separately from the withholding base. Amount realized includes debt relief as well as cash or property. Treasury regulations: transfers and exceptions. Nonresident individuals transferring an interest in a fund with US business or US real property use Schedule P (Form 1040-NR).

Selling below your original purchase price is not enough to prove a tax loss. Income, losses, distributions and debt change your adjusted tax basis; see Working out basis from fund K-1s. Part of the transfer can produce ordinary business income under section 751 even alongside a capital loss. IRS: partnership basis and sales. The withholding exception for no realized gain specifically requires that ordinary-income issue to be checked. Treasury regulations: no-gain certification.

Signed seller or fund certifications generally obtained within 30 days before the transfer can stop or reduce withholding for no gain, qualifying low US business income, maximum tax liability or treaty relief. Some tests require timely US returns and payments. Foreign partnership withholding covers these certifications and the Form 8288-A credit, including evidence when stamped Copy B is missing. Canadians selling listed partnership units can use US partnership units and withholding for Canadians.

When can I claim a refund if the fund's tax forms arrive late?

A calendar-year nonresident individual without employee wages subject to US withholding generally files by June 15. If fund forms will prevent timely filing, submit Form 4868 by that date to extend filing to December 15. Other filing triggers can change the date. A foreign corporation uses Form 7004 by its own Form 1120-F deadline. The fund's extension does not extend your return or payment time. IRS: individual extensions; corporate deadlines.

Form 8805 is due to the investor by the fund's partnership-return deadline, including extensions. A calendar-year fund's package can arrive as late as September 15, after the investor's ordinary deadline. IRS: Form 8805 timing; Form 7004 instructions. Return selection, ITINs and other deadlines are covered in Nonresident returns for business income.

Ask the fund for preliminary income estimates and withholding notices to estimate any tax still payable. Ordinary section 1446 income withholding cannot be claimed as an early refund before the annual return process. IRS: partner treatment.

For Form 1040-NR refunds supported by Forms 8805, 8288-A or 1042-S, allow up to 6 months; this is not a promised payment date. IRS: refund information.

Refund claims generally must be made within 3 years after filing or 2 years after paying, whichever is later. Fund withholding counts as paid on the original return due date, without extensions. A late first return generally recovers it only within three years of that date, plus any filing extension. IRS: claim and recovery limits; section 6513(b)(3).

Filing late can cost deductions much earlier: generally after 16 months from the original due date for individuals or 18 months for corporations. An earlier IRS notice can shorten these periods; good-faith waivers can apply. Withholding credits survive this deduction deadline, subject to refund limits. If US business status is uncertain, a timely protective return can preserve deductions; see Nonresident returns for business income and Foreign company US returns. Treasury: individual rule; corporate rule.

The late-filing penalty is generally zero when timely payments and withholding credits cover the tax. Otherwise, it is generally 5% per month or part of a month, with limits and exceptions. Paying the shortfall later does not reduce this penalty base. For this page's tax year, filing more than 60 days after the deadline, including extensions, brings a minimum of the lesser of $535 or that net tax amount. Treasury: penalty base; Revenue Procedure 2025-32, section 4.52.

What changes if I invest through an offshore feeder?

If the offshore feeder is a corporation for US tax, it generally reports the fund's US business income and claims withholding on its own Form 1120-F; you own shares in that foreign company. Corporate tax and withholding can still reduce your return. A partnership feeder still passes income through to foreign partners. Check the subscription documents and US tax classification before choosing a route. IRS: Form 1120-F instructions; see Blocker corporations and offshore feeders.

What does my country's treaty change, including for Hong Kong and Taiwan?

A treaty may reduce US dividend tax or exempt particular business income, but treaty eligibility must be tested for the investor, income and fund structure. A lower dividend rate does not establish an exemption for the fund's US business income. IRS: W-8BEN-E treaty-benefit instructions.

Tax residenceTreaty point to check for fund income
CanadaTreaty-eligible individuals generally qualify for 15% on ordinary US-company dividends
Mainland ChinaTreaty-eligible individuals generally qualify for 10% on ordinary US-company dividends
Hong KongNo US income-tax treaty applies; ordinary US dividends generally remain subject to 30%, and there is no treaty business-income exemption
TaiwanIRS guidance states there is no US income-tax treaty; ordinary US dividends generally remain subject to 30%, without treaty business-income relief

Sources: IRS treaty list, Publication 901, Hong Kong exclusion, and IRS international-notices guidance, Taiwan.

The dividend benchmarks come from Canada–US Article X and US–China Article 9; REIT dividends and dividends connected with a US business need separate checks.

For Form 1042-S dividends, compare withholding with your eligible treaty rate. An individual with no US business or ECI, whose US tax is fully covered by withholding and who files solely for a withholding refund, can use the simplified Form 1040-NR procedure. A treaty refund requires proof of eligibility, including whether your home country treats the partnership income as income earned by you. A company may also need to meet the treaty's limitation-on-benefits rules. Treasury regulations: income through entities; IRS: W-8BEN-E instructions.

For business income, a treaty's permanent-establishment test can matter: it asks whether the business has a sufficient presence in the US under that treaty. The Canada–US treaty, for example, permits US tax on business profits attributable to a US permanent establishment and separately permits US tax on US real-property income. Living abroad is not enough to establish exemption. Canada–US treaty, Articles VI and VII.

If two countries claim you as a resident, apply the treaty's residence rules first. For business income, investment withholding and treaty eligibility, see When foreign owners owe US tax.

What do I report at home in Canada, mainland China or elsewhere?

Home-country reporting is a separate review from your US refund claim.

What should I gather before filing for a refund?

Gather the fund's income statements and withholding forms together, then check that they identify the same investor and the correct tax period. Income evidence and payment evidence serve different purposes. IRS: Form 8805 purpose and identification requirements.

RecordWhy it matters
Schedule K-1, accompanying statements and Schedule K-3 if issuedIdentify income types and information needed for the investor's return
Form 8805Documents partnership business-income withholding
Form 8288-A, including stamped Copy BSupports private partnership-interest transfer withholding
Form 1042-SIdentifies income and withholding reported under the foreign-payment rules
W-8 form supplied to the fund and treaty-residence evidenceHelp review the status and treaty treatment used by the fund
Subscription, distribution and redemption recordsHelp reconstruct ownership, tax basis and sale proceeds
US tax number, prior returns and IRS correspondenceHelp match credits and identify unresolved periods
Passport and other identity records if an ITIN is neededSupport review of the identification requirements

An ordinary passport scan does not meet the ITIN identity-document requirement; originals or issuing-agency-certified copies are generally needed. See Nonresident returns for business income and Form W-7 instructions.

Request corrections from the fund if the investor's name, tax number or withholding amount is wrong. If you have several funds, keep each fund's income and withholding records together so the same payment is not counted twice. For refund claims involving missing forms, an ITIN, a redemption or two countries, bring these records to US return preparation and withholding claims for fund investors.

Example

Illustrative only. All amounts are in US dollars.

An adult Taiwan-resident nonresident individual invests directly in two US partnership funds. Assume no treaty or other special relief, no other US income, no deductions or other taxes, and timely filing.

InvestmentIncome and withholdingInvestor consequence
Credit fund that regularly originates US loans and reports US business incomeAllocates US$10,000 of taxable business income; withholds US$3,700 without a cash payoutThe investor reports the income and claims the Form 8805 credit on Form 1040-NR
Hedge fund whose only activity is qualifying securities tradingReports US$1,000 of ordinary US dividends and correctly withholds US$300 on Form 1042-SThe dividend withholding remains relevant even though qualifying trading does not create US business income

Business-income withholding is US$10,000 × 37% = US$3,700; dividend withholding is US$1,000 × 30% = US$300. Nonresidents generally receive no standard deduction. The US$10,000 of taxable business income falls in the first 10% bracket; the IRS Tax Table gives US$1,003 after its income-band rounding. Dividend tax is US$300. Total withholding of US$4,000 less total tax of US$1,303 leaves an illustrative US$2,697 refund. The credit fund's business income requires filing; both funds' withholding credits belong on that return. IRS: tax calculation; Tax Table; current-year brackets.

If the fund reports eligible qualified business income, a full 20% deduction on Form 8995 would instead reduce taxable income by US$2,000 to US$8,000. Tax Table business tax would be US$803, total tax US$1,103, and the refund US$2,897. Eligibility and limitations matter; see Nonresident returns for business income and IRS: Form 8995 instructions.

If Form 8805 arrives in September, the investor can file Form 4868 by June 15 to extend filing to December 15. Living abroad and receiving no cash do not remove the filing obligation.

Different for you?

Figures on this page

FigureValueSource
Section 1446 withholding rate for non-corporate foreign partners
Highest rate under section 1, applied to effectively connected taxable income allocable to the partner; a lower rate may apply to preferential income such as long-term capital gain with documentation.
37%
Tax year 2026
IRS: Instructions for Forms 8804, 8805 and 8813 (01/2026)
Checked
Section 1446 withholding rate for corporate foreign partners
Highest rate under section 11(b), applied to effectively connected taxable income allocable to the partner.
21%IRS: Instructions for Forms 8804, 8805 and 8813 (01/2026)
Checked
Withholding rate on US-source FDAP income paid to foreign persons
Applies to the gross amount of US-source FDAP income not effectively connected with a US trade or business; a treaty may lower it. Also the rate on pay to non-resident independent contractors for services performed in the US.
30%IRS: Fixed, determinable, annual, or periodical (FDAP) income
Checked
General initial real-property net-income election deadline
Section 871(d) for individuals and section 882(d) for foreign corporations use the section 6511 claim period. If no return was filed, generally 2 years after payment; assessment-extension agreements can extend the period. Deduction-filing deadlines are separate.
The later of 3 years after filing the return or 2 years after paying the taxTreasury: 26 CFR 1.871-10(d)(1)
Checked
Section 1446(f) partnership-interest transfer withholding rate
Generally applied to the amount realized on a covered transfer of a partnership interest by a foreign person, unless an exception applies
10%IRS: Instructions for Form 8288
Checked
General FIRPTA withholding rate
Generally applied to the foreign seller's amount realized on a US real-property sale
15%IRS: Instructions for Form 8288
Checked
General IRS response period for a FIRPTA early-refund application
Generally after receipt of a complete early-refund application under 26 CFR 1.1445-3(g); combined certificate applications and unusually complicated cases have special rules.
90 daysTreasury: 26 CFR 1.1445-3(g)
Checked
General pre-transfer window for partnership-transfer certifications
Under 26 CFR 1.1446(f)-1(c)(2)(i), generally obtain no earlier than this period before the transfer and no later than the transfer; the buyer’s post-transfer certification to the partnership is separate.
30 daysTreasury: 26 CFR 1.1446(f)-1(c)(2)(i)
Checked
Calendar-year Form 1040-NR deadline without wages subject to withholding
Following the tax year, before applicable extensions or weekend and holiday adjustments
June 15IRS: Publication 519, When and Where To File
Checked
Extended calendar-year Form 1040-NR deadline without wages subject to withholding
A timely Form 4868 filed by the ordinary June 15 deadline extends filing, not payment; weekend and holiday adjustments apply.
December 15IRS: Publication 519, extensions of time to file
Checked
Calendar-year partnership and S corporation extended federal filing deadline
Following year-end with a timely Form 7004; derived from the six-month filing extension. Does not extend payment.
September 15IRS: Instructions for Form 7004
Checked
Form 1040-NR refund processing time when claiming tax withheld on Form 1042-S
IRS processing estimate for refunds of tax withheld and reported on Form 1042-S, Form 8805 or Form 8288-A; not a filing deadline. Stated in the 2025 instructions
Up to 6 monthsIRS: Instructions for Form 1040-NR
Checked
General US refund claim period after return filing
From filing the original return; compare with 2 years from payment, and apply section 6511 lookback limits
3 years26 USC 6511(a)
Checked
General US refund claim period after payment
From payment if no return was filed; otherwise compare with 3 years from return filing, subject to section 6511 lookback limits
2 years26 USC 6511(a)
Checked
Refund lookback for a late original income-tax return
Refund generally limited to tax paid within three years before filing the late original return, plus any extension of time to file
Three yearsUS Code: section 6511(b)(2)(A)
Checked
Usual Form 1040-NR filing window to preserve deductions and credits
Measured from the return due date, for a nonresident alien individual; an earlier IRS notice can shorten it when the preceding year's return was not filed, and a good-faith waiver can apply
16 monthseCFR: 26 CFR 1.874-1(b)
Checked
Usual Form 1120-F filing window to preserve deductions and credits
Measured from the return due date; exceptions and earlier IRS notice rules can apply
18 monthsIRS: Foreign corporation Form 1120-F filing responsibilities
Checked
General monthly failure-to-file penalty rate
Of unpaid tax for each month or part month a required Form 1040 is late, before the concurrent failure-to-pay adjustment
5%IRS: Failure to file penalty
Checked
Lateness triggering the minimum income-tax filing penalty
More than this period after the filing due date, taking filing extensions into account.
60 daysIRS: Revenue Procedure 2025-32, section 4.52
Checked
Minimum tax-based late-filing penalty for income tax returns due in 2027
Lesser of this amount or tax required on the return after timely payments and allowable credits, for a return more than 60 days late including extensions; includes Form 1040-NR and Form 1120-F. Reasonable-cause relief can apply.
$535
Tax year 2026
IRS: Revenue Procedure 2025-32, section 4.52
Checked
Canada–US treaty dividend withholding rate, all other cases
Article X(2)(b): rate on dividends when the beneficial owner is not a company holding at least 10% of the voting stock, including an individual
15%Department of Finance Canada: Canada–United States Tax Convention (consolidated)
Checked
US-China treaty general dividend withholding rate for an individual
General dividend column for China in IRS Tax Treaty Table 1; treaty eligibility and residence must be confirmed
10%IRS: Tax Treaty Table 1
Checked
Chinese window to declare overseas income
Law Article 13 and Announcement 2020 No. 3 section VII: the year after the income is received; the foreign tax credit is claimed in the same filing.
March 1 through June 30 of the following yearState Taxation Administration: Individual Income Tax Law, Article 13
Checked
General federal tax assessment window after filing
Section 6501(a); no-return and other statutory exceptions can change the period
3 yearsUS Code: Section 6501
Checked
General collection period for assessed withholding tax
Section 6502(a) generally runs from assessment; statutory suspensions and extensions can change the period.
10 yearsUS Code: Section 6502(a)
Checked

Primary sources

About this guide

Published by Cloud Accounting under standing professional approval. This version has no separately recorded personal review. It explains general rules for the tax year shown. It is not advice for your situation.

Changes

  • : First published.
Di Lu, CPA
Di Lu, CPAUS and Canadian CPA

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