FDAP tax withholding is the 30% flat tax the United States collects at the source on most U.S.-source passive income paid to a nonresident alien or foreign entity. If you’re the one writing the check, you’re the withholding agent: you deduct the tax before the money leaves the country, deposit it with the Treasury, and report it. The foreign recipient bears the cost. You bear the compliance risk, and the IRS can come after you personally if the tax should have been withheld and wasn’t.
FDAP stands for Fixed, Determinable, Annual, or Periodical income. The label sounds narrow. In practice it’s a catch-all.
Which Payments Trigger Withholding
The IRS treats FDAP as everything except gains from the sale of property and items already excluded from gross income (like tax-exempt municipal bond interest).1Internal Revenue Service. Fixed, Determinable, Annual, or Periodical (FDAP) Income The payments you’ll most often see are:
- Dividends and dividend-equivalent payments from U.S. corporations
- Interest, including original issue discount
- Rents from U.S. real property
- Royalties on patents, copyrights, trademarks, and similar intellectual property
- Compensation for personal services performed in the United States
- Pensions and annuities from U.S. sources
- Scholarships and fellowship grants above the qualified tax-free amount
- Gambling winnings from U.S. casinos and racetracks
“Fixed” and “determinable” just mean the amount is set in advance or can be calculated. A royalty tied to a percentage of sales counts even though nobody knows the final dollar figure yet. “Annual or periodical” doesn’t require repeat payments; a one-time lump-sum royalty is still FDAP.1Internal Revenue Service. Fixed, Determinable, Annual, or Periodical (FDAP) Income
One item catches foreign retirees off guard: 85% of U.S. Social Security retirement, survivor, and disability benefits paid to a nonresident alien is FDAP, which produces an effective 25.5% withholding rate on the full monthly benefit.2Social Security Administration. Nonresident Alien Tax Withholding
What’s Outside FDAP
Several categories look like FDAP but aren’t, and misclassifying them is a common source of error.
Income effectively connected with a U.S. trade or business (ECI) is taxed on a net basis at graduated rates and reported by the foreign person on Form 1040-NR. Business expenses come off first. FDAP, by contrast, taxes the gross with no deductions.3Internal Revenue Service. Effectively Connected Income (ECI)
Capital gains on U.S. stocks and securities are exempt for a nonresident alien present in the United States fewer than 183 days in the tax year.4Internal Revenue Service. Publication 519 (2025), U.S. Tax Guide for Aliens Sales of U.S. real estate by a foreign seller are handled separately under FIRPTA, which requires the buyer to withhold 15% of the sale price — a different regime with its own forms.5Internal Revenue Service. FIRPTA Withholding
Portfolio interest on most registered debt held by foreign investors is exempt if the beneficial owner certifies foreign status, though the exemption disappears when the lender owns 10% or more of the corporate borrower’s voting stock or 10% or more of a partnership borrower’s capital or profits. Interest on ordinary U.S. bank deposits and similar accounts is also exempt, as long as it isn’t connected with a U.S. business.6Office of the Law Revision Counsel. 26 U.S. Code 871 – Tax on Nonresident Alien Individuals
How the 30% Rate Works
Withholding is 30% of the gross payment. No deductions, no credits, no netting against expenses. A $10,000 royalty to a foreign licensor produces $3,000 withheld and $7,000 wired abroad, whatever the licensor spent to develop the underlying IP.7Internal Revenue Service. Federal Income Tax Withholding and Reporting on Other Kinds of U.S. Source Income Paid to Nonresident Aliens
That withholding is generally the recipient’s final U.S. tax on the payment. The foreign payee doesn’t need to file a return for properly withheld FDAP. A Form 1040-NR only comes into play if they want to claim a refund for overwithholding, apply treaty benefits the agent didn’t capture, or report ECI.8Internal Revenue Service. 2025 Instructions for Form 1040-NR – U.S. Nonresident Alien Income Tax Return
One statutory carve-out from the 30% rate: nonresident alien students, researchers, and grantees on F, J, M, or Q visas pay 14% on the taxable portion of scholarship and fellowship income. It applies automatically once you have documentation of visa status.9Internal Revenue Service. Withholding Federal Income Tax on Scholarships, Fellowships, and Grants Paid to Nonresident Aliens
Who Is Responsible for Withholding
The tax code makes any person required to deduct and withhold tax on payments to foreign persons a “withholding agent.” That covers banks, brokerages, employers, universities, landlords, licensing companies, and anyone else who controls or distributes FDAP to a foreign payee. If you’re sending the money, you’re likely on the hook.
The teeth are here: a withholding agent is personally liable for tax that should have been withheld but wasn’t. Pay a $50,000 dividend to a foreign shareholder with no withholding, and you owe the IRS $15,000, plus interest and penalties. The shareholder cashing out and leaving the country doesn’t change that.10eCFR. 26 CFR 1.1441-1 – Requirement for the Deduction and Withholding of Tax on Payments to Foreign Persons
Without valid documentation, you must presume the payee is a foreign person entitled to no reduced rate and withhold the full 30%. That presumption rule is why collecting the paperwork before the first payment matters so much.10eCFR. 26 CFR 1.1441-1 – Requirement for the Deduction and Withholding of Tax on Payments to Foreign Persons
Documenting Foreign Status: The W-8 Series
A foreign payee establishes status and claims any reduced rate using a W-8 form. Foreign individuals sign Form W-8BEN to certify beneficial ownership and identify a treaty, if any applies.11Internal Revenue Service. About Form W-8 BEN, Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals) Foreign corporations, partnerships, and other entities use Form W-8BEN-E.12Internal Revenue Service. About Form W-8 BEN-E, Certificate of Status of Beneficial Owner for United States Tax Withholding and Reporting (Entities)
A W-8BEN is valid from its signing date through the last day of the third following calendar year. Sign one during 2026 and it expires December 31, 2029. Tracking those dates and collecting refreshed forms before they lapse is part of the job. An expired W-8 gives you no more protection than none at all.13Internal Revenue Service. Instructions for Form W-8BEN (10/2021)
Foreign individuals claiming treaty benefits usually need a U.S. taxpayer identification number. Those without a Social Security number apply for an ITIN on Form W-7, matching an exception to the income type (pensions, royalties, gambling, scholarships, and so on each have specific documentation).14Internal Revenue Service. Instructions for Form W-7 Foreign entities obtain an EIN on Form SS-4.15Internal Revenue Service. Application for Employer Identification Number
Reducing the Rate Through a Tax Treaty
The 30% statutory rate is the starting point, not the final number for most payments. U.S. income tax treaties with dozens of countries reduce withholding on specific income categories, sometimes to zero.
Dividends vary the most. Many treaties set 15% for portfolio dividends and 5% for dividends from a subsidiary to a parent that meets a voting-stock threshold (often 10% or more). Interest is often fully exempt. Royalty rates range widely; patent royalties are 10% under the U.S.-Canada treaty and zero under the U.S.-U.K. and U.S.-Germany treaties.16Internal Revenue Service. Table 1 – Tax Rates on Income Other Than Personal Service Income Under Chapter 3, Internal Revenue Code, and Income Tax Treaties
To claim a treaty rate, the recipient must name the treaty country and the specific article on the W-8. Blank or wrong entries force you back to 30%. The completed W-8 is your only defense if the IRS later asks why you applied a reduced rate.
Modern treaties also carry a Limitation on Benefits clause meant to block treaty shopping through shell entities. A foreign corporation may need to show that a threshold percentage of its owners are residents of the treaty country before it qualifies for the reduced rate.17Internal Revenue Service. Claiming Tax Treaty Benefits
Depositing and Reporting the Tax
Withholding is only half the obligation. Deposits go to the Treasury through the Electronic Federal Tax Payment System (EFTPS) on a schedule that depends on how much has accumulated:
- $2,000 or more by the end of a quarter-monthly period (the 7th, 15th, 22nd, or last day of the month): deposit within 3 business days.
- $200 to $1,999 by the end of a month: deposit within 15 days after month-end.
- Under $200 for the entire year: pay with the Form 1042 filing.
These thresholds apply to Chapter 3 withholding. Missing a deposit deadline draws penalties and interest even if the annual return is filed on time.18Internal Revenue Service. 2025 Instructions for Form 1042
Two forms close out the year. Form 1042 is the annual summary of FDAP paid and tax withheld. Form 1042-S is the per-recipient statement showing income type, gross amount, withholding rate, and tax withheld. Both are due March 15 of the following year, shifting to the next business day if that falls on a weekend or holiday.19Internal Revenue Service. Discussion of Form 1042, Form 1042-S and Form 1042-T The foreign recipient uses their 1042-S to claim a refund, prove home-country credit, or reconcile their U.S. position.
Anyone filing 10 or more Forms 1042-S must file electronically through the IRS Information Returns Intake System (IRIS). Financial institutions must e-file regardless of volume.20Internal Revenue Service. Instructions for Form 1042-S
What Non-Compliance Costs
A withholding agent who fails to deduct and withhold owes the full amount that should have been withheld, plus interest from the original deposit date. Getting valid documentation after the fact can sometimes cure the liability, but only if the payment was actually exempt.10eCFR. 26 CFR 1.1441-1 – Requirement for the Deduction and Withholding of Tax on Payments to Foreign Persons
Information-return penalties for late or incorrect Forms 1042-S are tiered. For returns due in 2025:
- Corrected within 30 days: $60 per form.
- Corrected after 30 days but by August 1: $130 per form.
- Not corrected by August 1 or not filed: $330 per form.
- Intentional disregard: $660 per form or 10% of the amount that should have been reported, whichever is greater, with no cap.
A matching penalty applies for failing to furnish a correct copy to the recipient, on the same schedule.21Internal Revenue Service. Penalties Related to Form 1042-S22Internal Revenue Service. 20.1.7 Information Return Penalties
How FATCA Interacts With FDAP
The Foreign Account Tax Compliance Act (FATCA), Chapter 4 of the withholding rules, added a second 30% withholding aimed at foreign financial institutions that won’t report on U.S. account holders. A foreign bank or fund that fails to register with the IRS and agree to FATCA reporting faces 30% withholding on certain U.S.-source payments it receives.23Internal Revenue Service. FATCA Information for Foreign Financial Institutions and Entities
The two chapters don’t stack. If tax has been withheld under Chapter 4, no additional Chapter 3 withholding applies to the same payment. You still have to track which chapter you’re operating under and report accordingly.24Internal Revenue Service. Chapter Three and Chapter Four Withholding Database The W-8BEN-E captures the FATCA classification of a foreign entity; misclassifying it can send you to the wrong chapter even when the dollar figure ends up identical.