NRA Withholding

NRA withholding, short for nonresident alien withholding, is the system that requires a US payer to deduct tax from US-source income before it reaches a foreign person. It sits in chapter 3 of the Internal Revenue Code, in section 1441 (withholding on nonresident alien individuals), section 1442 (withholding on foreign corporations), and section 1443 (foreign tax-exempt organizations). The IRS states the default rate plainly on its NRA withholding page: “Most types of U.S. source income received by a foreign person are subject to U.S. tax of 30%.” It explains the regime in detail in Publication 515. For US companies paying foreign contractors, NRA withholding is the rule that decides whether money leaves at full value or arrives 30 percent lighter.

How NRA Withholding Works

NRA withholding applies to FDAP income, which is fixed, determinable, annual, or periodical income from US sources. When a US withholding agent makes such a payment to a foreign person, the agent generally must:

1. Collect documentation of the payee’s foreign status before payment. A foreign individual files Form W-8BEN, a foreign entity files Form W-8BEN-E, and a foreign individual claiming a treaty exemption on personal-services income files Form 8233.
2. Determine the correct rate, starting from the 30 percent default and applying any treaty reduction documented on the W-8 or 8233.
3. Withhold the tax on the gross payment and deposit it through EFTPS.
4. Report the income and the tax withheld at year-end on Form 1042-S, with the annual summary on Form 1042.

Per the IRS, a reduced rate or exemption applies only where a treaty or an Internal Revenue Code provision allows it; otherwise the statutory 30 percent governs.

Who Is a Withholding Agent

The withholding agent is the person required to deduct, withhold, and pay over the tax. Per the IRS, “you are a withholding agent if you are a U.S. or foreign person that has control, receipt, custody, disposal, or payment of any item of income of a foreign person that is subject to withholding.” A US company that engages and pays a foreign contractor is the withholding agent for that payment. The agent is personally liable: the IRS states that “a withholding agent is personally liable for any tax required to be withheld,” and that this liability is independent of the foreign person’s own tax liability. Failing to withhold does not shift the cost to the contractor. It lands on the payer.

When It Applies and When It Does Not

NRA withholding turns on two questions: is the payee a foreign person, and is the income US-source.

• Applies. A Canadian contractor flies to the US for an onsite engagement. Services performed in the US are US-source income, so the 30 percent rate applies unless a treaty claim on Form 8233 reduces it.
• Does not apply, foreign source. A developer in Poland does all the work from Poland. Compensation for services performed entirely outside the US is foreign source income, which is outside chapter 3 and not reportable on Form 1042-S. The payer should still hold a valid W-8 to document the foreign status.
• Does not apply, ECI. If the foreign person’s income is effectively connected income from a US trade or business, it is documented on Form W-8ECI and taxed on a net basis at graduated rates instead of the flat 30 percent.

The sourcing question is governed by the source of income rules, under which personal services income is sourced to where the work is physically performed.

Treaty Reduction

The 30 percent default is a ceiling, not a fixed rate. The US has an income tax treaty with many countries that reduces or eliminates withholding on specific income types. A foreign payee claims the reduced rate by giving the withholding agent a valid W-8BEN, W-8BEN-E, or, for personal-services compensation, a Form 8233. To claim treaty benefits the payee must be the beneficial owner of the income and generally must furnish a US TIN or, where allowed, a foreign TIN. Without valid documentation, the agent must withhold the full 30 percent.

Deposits and Reporting

Withheld tax is deposited through EFTPS during the year. At year-end the agent files a Form 1042-S for each foreign recipient and a single Form 1042 to summarize all of them. Both are due March 15 of the following year. The 1042-S is required even if a treaty cut the rate to zero, because the underlying payment was still US-source FDAP income.

Common Pitfalls

• Assuming all payments to foreigners are US-source. Source depends on where the work is performed, not where the payer sits. Most remote foreign contractor work is foreign-source and outside NRA withholding.
• Skipping documentation. Without a valid W-8 on file, the agent must treat the payee as subject to 30 percent withholding, even if the income would otherwise be foreign-source.
• Issuing a 1099 to a foreign contractor. US-source income to a foreign person belongs on Form 1042-S. A 1099-NEC is for US persons.
• Treating withholding as the contractor’s problem. The withholding agent carries personal liability, with interest, for tax it should have withheld and did not.

Related Forms and Terms

• FDAP Income: the category of income NRA withholding applies to.
• Withholding Agent: the party legally responsible for withholding.
• Form 1042-S and Form 8233: the reporting return and the treaty-exemption form.
• Income Tax Treaty: the mechanism that reduces the 30 percent default.
• IRS Publication 515: the IRS guide to the entire regime.

Omnivoo Contract Management sorts each foreign contractor payment by source and W-8 documentation, applies the correct treaty or statutory rate, and produces the Form 1042-S records a withholding agent needs at year-end.