Form 1042-S: What U.S. Businesses Need to Know About Withholding and Reporting for Foreign Payees

Form 1042-S is used by U.S. withholding agents to report income paid to foreign persons and the tax that was or was not withheld. It is sent to the IRS and the income recipient by March 15 every year. U.S. LLCs or corporations that pay dividends, royalties, rents, or services to foreign persons may be required to file Form 1042-S regardless of whether they withheld any tax.

What Is Form 1042-S and Who Has to File It?

Form 1042-S is called Foreign Person’s U.S. Source Income Subject to Withholding. It is not filed by the foreign payee. It is the responsibility of the withholding agent: the U.S. business, LLC, partnership, trust, or other U.S. entity that makes the payment.
If you are a U.S. entity making any of the following payments to a foreign person, you are likely required to file Form 1042-S:

• Dividends from a U.S. corporation
• Royalties (software licenses, content, IP)
• Rents from U.S. real property
• Interest (with some exceptions for portfolio interest)
• Scholarships and fellowship grants
• Payments for U.S. personal services
• Prizes and awards

The default withholding tax for foreign persons under Chapter 3 of the Internal Revenue Code is 30%. This rate may be reduced or eliminated if the foreign person resides in a country that has a tax treaty with the United States and files a valid Form W-8BEN (for individuals) or Form W-8BEN-E (for entities).

Here is a common misconception among many operators that leads to problems down the line: just because a treaty establishes a zero withholding rate does not eliminate the obligation to file a Form 1042-S. The withholding rate does not equal the reporting obligation.

The Relationship Between Form 1042-S, Form 1042, and Form 1042-T

These three forms are meant to be completed together for annual reporting:

Form	Purpose	Who Files
Form 1042-S	Per-payee, per-income-type report	Withholding agent
Form 1042	Annual summary return (totals all 1042-S activity)	Withholding agent
Form 1042-T	Transmittal sheet for paper-filed 1042-S forms	Withholding agent (paper filers only)

Form 1042 is, in essence, a cover page. It summarizes all the income and tax withheld across all Form 1042-S filings. You submit Form 1042 only once per reporting year. You submit a Form 1042-S for each payee and for each income type paid to that payee. If you paid a contractor royalties and service fees, that means two Form 1042-S forms for the same payee.

Form 1042-T is only required if you use the paper form. If you are e-filing, skip it.

How to Fill Out Form 1042-S: The Boxes That Matter Most

On first glance, the form looks easy to complete. This is where most mistakes are made.

Box 1: Income Code

There are now 61 income codes that represent various payment types. Code 06 is ordinary dividends. Code 11 is copyright royalties. Code 17 is independent personal services. Codes 42 and 43 are for payments made to artists and athletes.

One income code per Form 1042-S. If you made two payments of different types to the same payee, report each payment type on a separate form.

Use caution with Code 23 (other income). Code 23 should only be used if no other code applies. The IRS will scrutinize returns that show overreliance on catch-all codes.

Boxes 3a and 4a: Exemption Codes

Box 3a is for Chapter 3 exemptions (regular withholding). Box 4a is for Chapter 4 withholding under FATCA. If you are using a tax treaty to reduce withholding to zero, you must report the exemption code. You cannot leave it blank. If you are unable to determine the recipient’s TIN and cannot obtain it, you must withhold at 30% and report “00” in both boxes.

Boxes 3b and 4b: Tax Rate

Report the actual tax rate applied, even if it is zero. Forms are rejected if these boxes are left blank.

Boxes 13a through 13g: Recipient Information

These boxes are for the recipient’s name, address, country of residence, and taxpayer identification number. A missing or incorrect ITIN or EIN is one of the most common reasons forms are rejected.

Penalties for Late or Incorrect Filing

The IRS sets penalty amounts on a per-form basis and adjusts them for inflation:

Timing of Filing	Penalty Per Form (2025 Tax Year)
Within 30 days of the due date	$60
31 days late through August 1	$130
After August 1 or never filed	$340
Intentional disregard	$680 (no cap)

If you filed neither the IRS copy nor the recipient copy, you will incur both penalties. For intentional disregard, the IRS will impose a $680 penalty per form with no cap. If 10% of the unpaid withholding tax exceeds $680, that higher figure applies instead.

Separately, the IRS imposes a failure-to-deposit penalty of 2% for tax deposits delayed by 1 to 5 days, increasing to 15% for deposits more than 10 days late.

The W-8 Forms You Need Before You File Anything

When filling out Form 1042-S, you must have documentation for the payee. The W-8 form required depends on the situation:

• Form W-8BEN: Individual foreign persons claiming treaty benefits or certifying foreign status.
• Form W-8BEN-E: Foreign entities (corporations, partnerships, trusts).
• Form W-8ECI: Foreign persons whose income is effectively connected with a U.S. trade or business. These payments are taxed differently and are generally not subject to the standard 30% withholding.
• Form W-8IMY: Intermediaries such as foreign partnerships or foreign nominees acting on behalf of others.

If a payee does not submit a Form W-8, you must treat them as a U.S. person and either issue a 1099 or apply backup withholding at 24%. Getting the W-8 form before you pay is not optional. It protects your position as a withholding agent.

W-8 forms expire after three years. An expired W-8 means you may need to restore the 30% withholding obligation until a new form is submitted.

Common Mistakes We See from U.S. LLCs Paying Foreign Contractors

We work with many U.S.-based LLCs with non-resident founders and foreign contractors. The same errors come up repeatedly.

Assuming 1099 is sufficient. A 1099 is for U.S. persons. If your contractor or vendor is a foreign individual or entity, you should not issue a 1099-NEC. You need a W-8BEN or W-8BEN-E on file, and you may be required to file a 1042-S instead.

Making income dependent on where the payee resides. The form applies to U.S.-source income paid to foreign persons. If a foreign contractor performed their services entirely outside the United States, those payments are generally considered foreign-source income and do not require a 1042-S. The analysis is based on where the services were performed, not on the contractor’s residence.

Filing one 1042-S per payee instead of per income type. If a payee received royalties and also received consulting fees, two separate forms are required for that payee.

Missing the domestic payor rule for LLCs. Single-member LLCs disregarded for U.S. tax purposes are still considered withholding agents. Foreign ownership of the LLC does not remove the filing obligation.

Forgetting the reconciliation step. The income and withholding amounts reported across all your 1042-S forms must match what is reported on Form 1042. Mismatches trigger IRS notices and can delay processing.

Frequently Asked Questions

Do I need to file Form 1042-S if I withheld no tax?

Yes. In the case of treaty claims, the obligation to report exists even if no taxes are due. The reporting obligation is not the same as the withholding obligation.

Is Form 1042-S required for payments to a foreign-owned U.S. LLC?

Disregarded entities are treated as if through the eyes of U.S. tax purposes. If the LLC’s owner is a nonresident alien, payments may still be subject to withholding and to Form 1042-S. If the LLC is treated as a corporation for U.S. tax purposes, different rules apply.

How do I amend a 1042-S I already filed?

Check the “Amended” box on the form, enter a sequential amendment number, and complete the entire form, not just the sections where changes were made. You are also required to furnish the amended form to the recipient. If you were originally required to e-file, you must e-file the amendment as well.

What forms do I need from the foreign payee before I can file?

At minimum, a completed Form W-8BEN (for individuals) or Form W-8BEN-E (for entities). These documents confirm foreign status and may contain treaty claims that affect withholding rates. Without them, you may be required to withhold at 30% regardless of the actual situation.

If your U.S.-based company is making payments to foreign persons or entities and you are unsure whether you are required to file Form 1042-S, we can help you determine whether you are required to file it. At EasyFiling, we work with founders and operators in over 175 countries on U.S. compliance questions covering withholding, reporting, and more.

Talk to our team about your withholding and reporting obligations.