NRA Tax Withholding: Rates, W-8 Forms, and Penalties

If you pay US-source income to a nonresident alien, tax withholding for nonresident aliens generally means holding back 30% of the gross payment and sending it to the IRS, unless the payee gives you documentation supporting a lower rate. You are the withholding agent, and under IRC 1461 you are personally liable for any tax that should have been withheld, whether or not you actually collected it from the payee.¹ That personal exposure is what makes this more than a paperwork exercise.

Who Counts as a Nonresident Alien

The rules only apply if the payee is a nonresident alien (NRA). Anyone who is not a US citizen defaults to NRA status unless they pass either the Green Card Test or the Substantial Presence Test.²

The Green Card Test is simple: a person holding a valid, unrevoked green card is a resident alien for tax purposes, regardless of days spent in the US.

The Substantial Presence Test uses a weighted count of days present in the US: all days in the current year, one-third of days in the prior year, and one-sixth of days in the year before that. The person must be present at least 31 days in the current year and reach 183 weighted days across the three-year window.³ Students on F or J visas can exclude days for up to five calendar years; teachers and trainees on J visas can exclude days for up to two calendar years, extendable to four in some cases.⁴

As a withholding agent, you don’t run this test yourself. You rely on the payee’s certification on a W-8 form. But knowing the framework helps you spot when a certification looks off, and it explains why someone who seems to spend a lot of time in the US can still legitimately claim NRA status through the closer connection exception filed on Form 8840.⁵

What Payments Trigger Withholding

Not every payment to an NRA is subject to withholding. Two things have to line up: the income must be US-sourced, and it must fall into a covered category. The main covered category is Fixed, Determinable, Annual, or Periodical (FDAP) income. The alternative is Effectively Connected Income (ECI), which is handled very differently.

FDAP Income

FDAP covers interest, dividends, rents, royalties, premiums, annuities, compensation, and other periodic or passive US-source payments.⁶ The statutory default is a flat 30% on the gross amount, with no deductions or netting.⁷

Sourcing determines whether the payment is US-sourced in the first place. Dividends from a domestic corporation are US-sourced no matter where the NRA lives. Rental income from US real property is FDAP by default. Compensation for services performed inside the US is US-sourced.⁸

Two Interest Payments That Escape Withholding

Bank deposit interest paid on deposits with US banks, savings institutions, and certain insurance arrangements is exempt from NRA withholding, provided the interest is not connected to a US trade or business.⁹

Portfolio interest on debt obligations issued in registered form after July 18, 1984 is also exempt, as long as the beneficial owner certifies foreign status and is not a 10-percent shareholder of the issuer.¹⁰

Scholarships and Fellowships

Taxable scholarships and fellowship grants to NRAs on F, J, M, or Q visas are withheld at 14% (rather than 30%) to the extent the amount is incident to a qualified scholarship or paid by a qualifying organization. Any portion that compensates for services, such as a teaching or research assistantship, follows graduated wage withholding instead. A tax treaty can reduce or eliminate the withholding entirely.¹¹

Effectively Connected Income

ECI is income from a US trade or business. It is taxed at the same graduated rates that apply to US citizens and residents, and the NRA can claim deductions against it. For a withholding agent, the practical effect is that ECI is not subject to the flat 30% FDAP regime — you apply standard wage-withholding tables. But you can only treat a payment that way if the payee gives you a valid Form W-8ECI certifying the income is effectively connected.¹² Without that form, default back to 30% on the gross.

Real Property Sales Are a Separate Regime

If a foreign person sells US real property, you’re in FIRPTA territory, not the FDAP rules described here. The buyer generally withholds 15% of the amount realized, with a 10% rate for residences purchased for the buyer’s own use where the amount realized is between $300,001 and $1,000,000, and no withholding at $300,000 or below.¹³ FIRPTA uses its own forms, chiefly Form 8288, and operates independently of the Chapter 3 rules covered here.

The 30% Rate and How Treaties Reduce It

The 30% flat rate is the default under IRC 1441.⁶ The only way you apply less is if the payee documents eligibility for a lower rate, and in most cases that means invoking a bilateral tax treaty.

The US has income tax treaties with dozens of countries. Treaty rates vary by type of payment (dividends, interest, royalties, pensions, and so on) and by the NRA’s country of residence. There is no universal reduced rate.

To claim treaty benefits, the payee must certify two things on their W-8: that they are a tax resident of the treaty country, and that they are the beneficial owner of the income. Beneficial ownership means the person must include the payment in their own gross income under US tax principles. A nominee, agent, or conduit is not the beneficial owner, and you cannot grant treaty benefits to one.¹⁴

Most US treaties also contain a Limitation on Benefits (LOB) article aimed at preventing treaty shopping. An entity claiming treaty benefits has to satisfy one of several objective tests (publicly traded, ownership-and-base-erosion, and so on) proving a real connection to the treaty country.¹⁵ On Form W-8BEN-E, the entity must identify which LOB provision it satisfies, or indicate that the treaty has no LOB article.¹⁶ A treaty claim without this piece is invalid.

W-8 Forms: What to Collect and How to Validate

You cannot apply anything other than 30% until you have a valid W-8 form on file. These forms are your primary defense if the IRS later challenges the rate you applied. You keep them; you don’t file them with the IRS.

Which Form Fits the Payee

Form W-8BEN is for individual NRAs certifying foreign status and, where applicable, claiming treaty benefits.¹⁷
Form W-8BEN-E is the entity version, used by foreign corporations, partnerships, and trusts to certify Chapter 3 status and claim treaty benefits.¹⁸
Form W-8ECI is used when the payee is certifying that the income is effectively connected with a US trade or business.¹²
Form W-8EXP is for foreign governments, international organizations, foreign central banks, and foreign tax-exempt organizations claiming exemption.¹⁹
Form W-8IMY is used by foreign intermediaries and flow-through entities that are not themselves the beneficial owner. A qualified intermediary uses this form to accept withholding responsibility for the underlying payees.²⁰

How Long a W-8 Lasts

A W-8 form is generally valid from the date it is signed through the last day of the third succeeding calendar year. A form signed on March 10, 2026 remains valid through December 31, 2029.¹⁴ Form W-8BEN-E can remain valid indefinitely if there is no change in circumstances.²¹ Request updated forms before the existing ones expire. If a fresh form does not arrive in time, go back to 30%.

Validation, Not Just Collection

Collecting the form is not the same as validating it. You can generally rely on a W-8 unless you have actual knowledge or reason to know the information is unreliable. Common defects that invalidate a form:¹⁶

A missing foreign TIN, where required, with no box checked to explain why. The form cannot support reduced withholding on income reportable on Form 1042-S.
A Form W-8ECI without a US taxpayer identification number. You cannot treat the income as effectively connected.
No entity type selected, or a missing required certification. This is not treated as an inconsequential error.
A treaty claim on Form W-8BEN-E that fails to identify an LOB provision.

For individual NRAs claiming treaty benefits on Form W-8BEN, the form needs either a US Social Security Number, an ITIN, or a foreign TIN. For treaty benefits tied to dividends and interest from actively traded stocks or debt obligations, or from mutual fund shares, a foreign TIN on line 6 is enough — an ITIN is not required.¹⁴

The FATCA Overlay

The traditional NRA rules described so far are “Chapter 3” withholding. Alongside them sits “Chapter 4” withholding under FATCA. Both impose a 30% rate, but they target different things.

Chapter 3 asks whether the payee is a foreign person receiving US-source FDAP income. Chapter 4 asks whether the payee is a foreign financial institution (FFI) or a passive non-financial foreign entity (NFFE) that has failed FATCA’s reporting requirements.²² Chapter 4 requires 30% withholding on “withholdable payments” to an FFI unless you can treat it as a participating FFI, deemed-compliant FFI, or exempt beneficial owner. The same rate applies to a passive NFFE that fails to identify its substantial US owners or certify that it has none.

Both W-8BEN-E and W-8IMY include Chapter 4 status sections. When a payee claims certain Chapter 4 statuses, you must verify their Global Intermediary Identification Number (GIIN) against the IRS’s published FFI list.¹⁶

Depositing the Tax

Withheld tax is deposited through EFTPS. The deposit schedule for Form 1042 withholding is not the monthly-or-semiweekly schedule used for employment taxes. It runs off accumulated undeposited tax:

$2,000 or more at the end of a quarter-monthly period (periods end on the 7th, 15th, 22nd, and last day of each month): deposit within three business days.
$200 to $1,999 at month-end: deposit within 15 days after month-end.
Under $200 at year-end: pay with Form 1042, or deposit by March 15 of the following year.

A single large royalty payment in January can put you on a three-business-day clock; small periodic payments may only trigger a month-end deposit.

Form 1042-S and Form 1042

Form 1042-S reports the gross income paid to each NRA payee, the withholding rate applied, and the tax actually withheld. You issue a copy to the recipient and file a copy with the IRS. Both are due March 15 of the year following the payment year; if that date falls on a weekend or legal holiday, it shifts to the next business day.²³ An automatic 30-day extension to file with the IRS is available on Form 8809. A separate 30-day extension to furnish recipient copies can be requested on Form 15397.

Form 1042 is the annual reconciliation. It aggregates every Form 1042-S you issued and compares total withholding against total EFTPS deposits. Any shortfall is paid with the return. Also due March 15.²⁴

If you file 10 or more information returns of any type during the calendar year, Form 1042-S must be filed electronically. The threshold is aggregate: eight Forms 1099 plus three Forms 1042-S puts you over. Financial institutions reporting under Chapter 3 or Chapter 4 must e-file regardless of volume, and so must partnerships with more than 100 partners.²⁵

Penalties When Something Goes Wrong

You are personally liable for tax that should have been withheld, whether or not you collected it from the NRA.¹ On top of the tax, penalties stack:

Late deposits carry a graduated penalty under IRC 6656: 2% up to five days late, 5% for six to fifteen days, 10% beyond fifteen days, and 15% if the tax remains undeposited after the IRS issues a delinquency notice.²⁶

Late filing of Form 1042 costs 5% of the unpaid tax per month or partial month, capped at 25%, absent reasonable cause.²⁷

An incorrect or late Form 1042-S filed with the IRS costs $340 per form, with an annual cap of $4,191,500 ($1,397,000 for small businesses). The same $340 per form applies to failure to furnish a correct recipient statement on time. If the IRS finds the errors were intentional, the penalty jumps to the greater of $690 per form or 10% of the amount required to be reported, with no cap.²³ Fifty defective forms can mean $17,000 in penalties before the IRS even reaches the underlying tax and interest.

What the NRA Still Has to File

Your withholding does not always close the loop for the payee. An NRA engaged in a US trade or business must file Form 1040-NR even without US-source income. An NRA not engaged in a US trade or business must file if the 30% withholding did not fully cover their liability on US-source FDAP income.²⁸

Filing also gives the NRA a way to recover over-withholding. If a W-8 arrived too late and you applied the full 30% when a treaty rate would have cut it, the NRA can file Form 1040-NR to claim a refund. The Form 1042-S you issued is what supports that claim, which is another reason accurate reporting matters as much as accurate withholding.

1
Office of the Law Revision Counsel. 26 U.S. Code 1461 – Liability for Withheld Tax
2
Internal Revenue Service. Determining an Individual’s Tax Residency Status
3
Internal Revenue Service. Substantial Presence Test
4
Internal Revenue Service. Taxation of Alien Individuals by Immigration Status – J-1
5
eCFR. 26 CFR 301.7701(b)-2 – Closer Connection Exception
6
Office of the Law Revision Counsel. 26 U.S. Code 1441 – Withholding of Tax on Nonresident Aliens
7
Internal Revenue Service. Fixed, Determinable, Annual, or Periodical (FDAP) Income
8
Office of the Law Revision Counsel. 26 U.S. Code 861 – Income From Sources Within the United States
9
Office of the Law Revision Counsel. 26 U.S. Code 871 – Tax on Nonresident Alien Individuals
10
eCFR. 26 CFR 1.871-14 – Rules Relating to Repeal of Tax on Interest
11
Internal Revenue Service. Withholding Federal Income Tax on Scholarships, Fellowships, and Grants Paid to Nonresident Aliens
12
Internal Revenue Service. Form W-8ECI (Rev. October 2021)
13
Internal Revenue Service. Publication 515 (2026), Withholding of Tax on Nonresident Aliens and Foreign Entities
14
Internal Revenue Service. Instructions for Form W-8BEN (10/2021)
15
Internal Revenue Service. Tax Treaty Tables
16
Internal Revenue Service. Instructions for the Requester of Forms W-8BEN, W-8BEN-E, W-8ECI, W-8EXP, and W-8IMY
17
Internal Revenue Service. Form W-8BEN (Rev. October 2021) – Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals)
18
Internal Revenue Service. About Form W-8 BEN-E
19
Internal Revenue Service. Instructions for Form W-8EXP (10/2023)
20
Internal Revenue Service. About Form W-8 IMY
21
Internal Revenue Service. Instructions for Form W-8BEN-E (10/2021) – Section: Expiration of Form W-8BEN-E
22
Internal Revenue Service. Tax Withholding Types
23
Internal Revenue Service. Instructions for Form 1042-S (2026)
24
Internal Revenue Service. Instructions for Form 1042 (2025)
25
Internal Revenue Service. Electronic Reporting
26
Office of the Law Revision Counsel. 26 U.S. Code 6656 – Failure to Make Deposit of Taxes
27
Office of the Law Revision Counsel. 26 U.S. Code 6651 – Failure to File Tax Return or to Pay Tax
28
Internal Revenue Service. Instructions for Form 1040-NR (2025)