Paying Foreign Contractors: 1099-NEC, 1042-S, or Neither

A US company hires a software developer in Poland, a designer in Argentina, or a marketing consultant in the Philippines, pays them $80,000 over the year, and then asks the wrong question in January: do we send them a 1099? The answer is rarely the one people expect, and the reason is not a special rule for foreigners. It is the ordinary source-of-income rule, which most online guidance states backwards. Compensation for personal services is sourced where the services are performed, not where the payer sits, not where the contract was signed, and not where the money left the bank. That rule governs the services component of the payment. Where the engagement licenses intellectual property instead of transferring it, the royalty component is sourced separately, to the place of use. Get both right and the compliance question resolves itself.

Is a Payment to a Foreign Contractor US-Source or Foreign-Source Income?

For the compensation component, it turns on where the services were physically performed. IRC §861(a)(3) sources compensation for labor or personal services to the United States when the services are performed within the United States. IRC §862(a)(3) is the mirror image: compensation for labor or personal services performed without the United States is foreign-source income. The contractor's citizenship, the payer's US incorporation, the location of the bank account, the governing law of the contract, and the currency of payment are all irrelevant to that test.

This is the most commonly inverted rule in small business international tax. The instinct is that money leaving a US company must be US income. It is not. If a developer in Warsaw writes code at a desk in Warsaw under a work-for-hire agreement, every dollar of that compensation is foreign-source under §862(a)(3), and the United States has no taxing jurisdiction over it in the hands of a nonresident alien. Two consequences follow:

• No withholding. IRC §1441(a) obligates a withholding agent to deduct and withhold 30% only on items of income from sources within the United States that constitute fixed or determinable annual or periodical income. Foreign-source income is not within the statute's reach.
• No Form 1042-S in the ordinary case. Treas. Reg. §1.1461-1(c)(2)(i) defines the amounts subject to Form 1042-S reporting as, in relevant part, "amounts subject to withholding as defined in §1.1441-2(a)," and §1.1441-2(a) in turn means "amounts from sources within the United States." The illustrative list that follows, items (A) through (K), sits inside that US-source definition. Item (K), which covers compensation for personal services paid to foreign students, trainees, teachers, and researchers, reaches the US-source case and does not remove the source limit, so foreign-source compensation is not reportable. The IRS states the rule plainly, that foreign-source income is "normally not required to be reported on an information return," and a payer that wants to report it anyway does so voluntarily under Exemption Code 03, "Income is not from U.S. sources." For a contractor who performs every hour abroad, no Form 1042-S is filed.

One clarification saves a great deal of confusion: the analysis turns on the person's status, not on where the person lives. A US citizen or green card holder who has lived in Lisbon for a decade is still a US person. Their income may be foreign-source, but they remain inside the Form 1099 system and the US tax net, dealing with the foreign earned income exclusion or the foreign tax credit on their own return. "Foreign contractor" means a foreign person: a nonresident alien individual, foreign corporation, foreign partnership, or foreign estate or trust.

Does the Place-of-Performance Rule Cover Software, Design, and Other IP Work?

Usually the payment is foreign-source, but the reason takes two rules, not one. IRC §861(a)(3) sources compensation for services to where the work is performed. When the deliverable is code, a design file, or other digital content, Treas. Reg. §1.861-18 classifies the transaction, and that classification, not the invoice label, sets the source. The line the regulation draws is between the transfer of a copyright right and the transfer of a copyrighted article. Only the first produces a royalty, and royalties are sourced by IRC §861(a)(4): to the United States for "rentals or royalties from property located in the United States or from any interest in such property, including rentals or royalties for the use of or for the privilege of using in the United States patents, copyrights, secret processes and formulas, good will, trade-marks, trade brands, franchises, and other like property."

Treas. Reg. §1.861-18(c)(2) lists the copyright rights: the right to reproduce the work for distribution to the public, to prepare derivative works, to perform it publicly, and to display it publicly. License one of those and you are paying a royalty. But a contractor who simply builds you software or a design and lets you use it has transferred a copyrighted article under §1.861-18(c)(3), because mere use is not on that list, and a transfer of a copyrighted article is a sale or a lease, not a royalty. Income from the sale of a copyrighted article is sourced under §865(a) to the seller's residence, so a sale by a foreign contractor is foreign-source and carries no withholding and no Form 1042-S, even if you run the software entirely inside the United States. Only two paths pull the payment back to US source: a license of one of those §1.861-18(c)(2) copyright rights for use in the United States, or a lease, rather than a sale, of a copyrighted article used here, which is a US-source rental under §861(a)(4). That distinction matters most in exactly the engagements people assume are simplest:

• Work for hire or an outright assignment. The developer in Warsaw or the designer in Buenos Aires is paid for labor, or assigns you every substantial right in the finished work. Either way the payment is foreign-source: compensation for services performed abroad under §862(a)(3), or, where the contractor assigns all substantial rights to a copyright it holds, a sale of property sourced to the nonresident seller under §865(a). The one wrinkle is §865(d)(1)(B): to the extent the price for that assignment is contingent on the productivity, use, or disposition of the work, an earnout tied to how the code performs, that portion is sourced as a royalty on the place-of-use rule instead of as a sale.
• License of a copyright right, ownership retained. A developer who keeps the copyright and grants you a §1.861-18(c)(2) right, to reproduce and distribute the work to the public, or to build derivative products on it, for use in your US business is being paid a royalty for US use. That slice is US-source FDAP: 30% withholding under §1441, Form 1042-S reporting, and §1461 personal liability on the payer if it is missed, even though the contractor never set foot in the United States. A bare license to use the deliverable is not this; that is the copyrighted-article sale above.

Two practical consequences follow. First, a contract that both pays for services and licenses a copyright right must be bifurcated, with a reasonable and documented allocation between the two components, on the same evidentiary footing as the time allocation discussed further below. Second, the royalty exposure is usually fixable in the contract before it arises. An outright assignment of all rights, which most US companies want commercially anyway, turns the payment into compensation or a sale and removes the royalty component, provided the price is fixed rather than an earnout contingent on use or productivity under §865(d)(1)(B). Where a license of a copyright right is genuinely intended, the royalty article of an applicable treaty frequently reduces the rate to zero, but the claim runs through a Form W-8BEN treaty certification and the payment still goes on Form 1042-S at the reduced rate.

This is the single most common way an otherwise correct place-of-performance analysis produces the wrong answer. The engagement letter, not the invoice, is where you find out which one you have.

Do You Issue a Form 1099-NEC to a Foreign Contractor?

No. Form 1099-NEC is the information return for nonemployee compensation paid to US persons, and payments to foreign persons are affirmatively removed from that regime by Treas. Reg. §1.6041A-1(d)(3)(i)(A). The General Instructions for Certain Information Returns say the same thing from the other direction: amounts paid to nonresident aliens and foreign entities that are reportable at all belong on Form 1042-S, not a Form 1099.

So there is no "foreign 1099." Sending one to a contractor in Manila is not a harmless belt-and-suspenders measure: it uses a taxpayer identification number field the recipient cannot populate and creates a phantom US filing obligation in their name, which can generate IRS notices to a person with no US filing requirement and no way to respond.

One related point costs businesses real money out of nervousness: the deduction does not depend on the information return. The payment is deductible under IRC §162 if it is an ordinary and necessary business expense substantiated by an invoice, a contract, and proof of payment. No rule conditions that deduction on filing a Form 1099 the law never required.

Why Collect a Form W-8BEN If Nothing Is Reportable?

Because that exemption is conditioned on documentation obtained before the money moves. Treas. Reg. §1.6041A-1(d)(3)(i)(A) removes a payment from §6041A reporting only where the payor can, prior to payment, reliably associate it with documentation on which it may rely to treat the payment as made to a foreign beneficial owner under §1.1441-1(e)(1)(ii). The timing language is doing real work: a W-8BEN collected in January to justify last year's payments is not what the regulation describes. Form W-8BEN is the individual certificate; Form W-8BEN-E is the entity version.

Skip it and the default is not neutrality. Under Treas. Reg. §1.6049-5(d)(2), a payer lacking documentation may be required to presume the payee is a US person, converting a payment that owed nothing into a Form 1099 obligation plus 24% backup withholding under §3406(a)(1), enforced through the TIN requirements of §6109. The W-8 is the cheapest piece of paper in the file.

When Is a Payment to a Foreign Contractor Reported on Form 1042-S?

When the compensation is US-source, meaning some or all of the services were performed inside the United States. Then the payment becomes an amount subject to reporting under Treas. Reg. §1.1461-1(c), a Form 1042-S is required for the recipient, and Form 1042 is filed as the annual withholding tax return that reconciles the total.

Three details about Form 1042-S catch people who have only ever handled Forms 1099:

Reporting is required even when the rate is zero. A treaty eliminates the withholding, not the reporting. The payment still appears on Form 1042-S with the applicable exemption code. Filing nothing because nothing was withheld is a §6721 information return failure in its own right.

The forms are recipient-specific and income-specific. Compensation for independent personal services carries its own income code, separate from dependent personal services, royalties, and interest. A vendor paid for two categories of income receives two Forms 1042-S.

Form 1042 is the return, Form 1042-S is the statement. Form 1042, Annual Withholding Tax Return for U.S. Source Income of Foreign Persons, reports aggregate liability and deposits. Form 1042-T is the paper transmittal for paper Forms 1042-S.

What Happens When a Foreign Contractor Performs Services Inside the United States?

The compensation for the US days becomes US-source under §861(a)(3), and the default withholding rate is 30%. The mechanism is not the one people expect. Because performing personal services in the United States is itself a US trade or business under IRC §864(b), a nonresident alien's independent personal services income is effectively connected income, which normally escapes §1441 withholding on a Form W-8ECI. Personal services are expressly carved out of that path: Treas. Reg. §1.1441-4(a)(1) states that the exemption "does not apply to ... compensation for personal services performed by an individual." The general 30% obligation under §1441(a) therefore stays in place, and Treas. Reg. §1.1441-4(b) supplies the only exemptions. The Instructions for Form 8233 state it flatly: absent a treaty exemption, "section 1441 requires 30% income tax withholding."

The exemptions that actually exist are narrow:

• A treaty claim on Form 8233. Under Treas. Reg. §1.1441-4(b)(2), the individual files Form 8233 with the withholding agent, who must forward it to the IRS within 5 days of acceptance and then wait at least 10 days for any IRS objection before honoring the exemption. Form 8233 requires a US taxpayer identification number, so the contractor needs an SSN or an ITIN under §6109 before the exemption can be claimed at all. Many modern treaties, including the 2016 US Model, have no separate independent personal services article, so the claim runs through the business profits article and turns on the absence of a permanent establishment.
• A withholding agreement or a final payment exemption. Treas. Reg. §1.1441-4(b)(3) permits a withholding agreement with the IRS, and §1.1441-4(b)(4) allows a final payment exemption capped at $5,000 where the IRS determines that withholding on earlier payments already exceeds the expected tax. Both are administratively heavy and neither is a routine planning tool.
• The de minimis rule in §861(a)(3), which almost never helps. See the next section.

A foreign corporation sits slightly differently, and under a different statute: withholding on payments to foreign corporations is imposed by IRC §1442, which applies the §1441 rules by reference. Its ECI can be exempted from that withholding by a Form W-8ECI, in which case it files Form 1120-F and pays on a net basis, or it can claim treaty business profits protection on Form W-8BEN-E absent a US permanent establishment. Either way the payment remains reportable on Form 1042-S.

Those US days create a second issue unrelated to your withholding: the contractor's own residency. Days of physical presence count toward the substantial presence test, and a contractor who spends enough time on your projects here can become a US resident for tax purposes, at which point the analysis inverts entirely and they belong on a Form 1099-NEC. A contractor who is a nonresident for part of the year and a resident for the rest files a dual-status return.

Does the 90-Day, $3,000 De Minimis Rule Help a US Business?

Rarely, and the reason is the third condition that almost everyone omits when they quote it. This exclusion requires all three of the following: the labor or services are performed by a nonresident alien individual temporarily present in the United States for a period or periods not exceeding a total of 90 days during the taxable year, the compensation does not exceed $3,000 in the aggregate, and the compensation is for labor or services performed as an employee of or under a contract with a nonresident alien, foreign partnership, or foreign corporation not engaged in a trade or business within the United States, or with a US citizen or resident, domestic partnership, or domestic corporation where the services are performed for an office or place of business maintained in a foreign country or in a possession of the United States. (§861(a)(3) contains a second, separate exclusion for a nonresident alien serving as a regular member of the crew of a foreign vessel engaged in transportation between the United States and a foreign country or US possession. It has no application to contractor engagements.)

That third condition is fatal to most fact patterns. If your US company contracts directly with the foreign individual for work done at your US location, the individual is neither your foreign employer's employee nor under contract with a foreign person, and the services are not performed for a foreign or possession office of a US person, so the exception is unavailable regardless of how few days or dollars are involved. Note the statutory words: the test is the counterparty to the employment or contract, not who benefits from the work. Services that happen to advantage a foreign affiliate do not qualify if the contract is with your US entity. The rule was built for the traveling employee of a foreign business, not for a US company's own contractor.

The $3,000 figure is also a cliff, not an exclusion. Compensation of $3,001 does not produce $1 of US-source income; it produces $3,001, because the exception fails entirely. The amount is fixed in the statute and Congress has never indexed it, which is why it looks so out of scale with modern contractor rates.

How Do You Source a Payment When Services Are Performed Both Inside and Outside the US?

You allocate, and the default method is time. Treas. Reg. §1.861-4(b) requires compensation for services performed partly within and partly without the United States to be apportioned on the basis that most correctly reflects the proper source of the income, and the time basis, days performed in the United States over total days performed, is the standard approach when no more accurate allocation is available.

A consultant paid $200,000 who spends 30 of 200 working days in the United States has $30,000 of US-source compensation and $170,000 of foreign-source compensation. The US-source slice bears 30% withholding and Form 1042-S reporting; the foreign-source remainder carries no US withholding or reporting. The requirement this imposes on the payer is unglamorous and non-negotiable: contemporaneous day records. Travel itineraries, calendar entries, and invoices identifying the location of performance are what convert an allocation from a position into a defensible computation. Reconstructing US days three years later from memory is how a favorable allocation becomes a full US-source assessment.

Fixed-fee and deliverable-based contracts pose the same problem in harder form. Where a contract is not measured in time at all, the payer needs a reasonable documented basis for the split, agreed in writing before the work is done rather than negotiated during an examination.

When Are Forms 1042 and 1042-S Due, and How Is the Tax Deposited?

March 15 of the year following the calendar year of payment, for both Form 1042 and every Form 1042-S, with Copy B furnished to each recipient by the same date. The deposit obligation runs on a completely separate and much faster clock, laid out below.

What Happens If a Payer Fails to Withhold?

IRC §1461 makes the withholding agent personally liable for the tax. The statute has no wiggle room: every person required to deduct and withhold any tax under chapter 3 is made liable for that tax. Liability attaches whether or not the payer withheld anything, whether or not the contractor is reachable, and whether or not the contractor would have owed the tax after treaty relief that was never properly claimed.

The exposure compounds in three directions:

• The gross-up. Treas. Reg. §1.1441-3(f)(1) provides that where a withholding agent's satisfaction of the beneficial owner's tax liability itself constitutes income to that owner, and that income is subject to withholding, the deemed payment is computed under a gross-up formula. Whether it constitutes income turns on all the facts and circumstances including the agreement between the parties, so it is not automatic. But where the payer absorbs the tax with no right of recovery, a $100,000 payment that should have borne 30% withholding does not cap out at a $30,000 assessment. It can gross up to a deemed payment of roughly $142,857 and a tax of roughly $42,857, before interest. Contract language allocating withholding risk is what decides this.
• Deposit and filing penalties. IRC §6656 imposes the failure-to-deposit penalty on amounts that should have been deposited through EFTPS, scaling with lateness, and §6651 applies to a late or unpaid Form 1042.
• Information return penalties. IRC §6721 penalizes the failure to file correct Forms 1042-S with the IRS and §6722 penalizes the failure to furnish correct statements to the recipient. Both are per-return or per-statement penalties with tiers based on how late the correction is, and both escalate sharply for intentional disregard. For returns required to be filed in calendar year 2027, Rev. Proc. 2025-32 sets the general amount at $340 per return and per statement, with annual maximums of $4,191,500 for filers with gross receipts over $5 million and $1,397,000 for small filers. Because §6721 and §6722 apply separately, a single missing Form 1042-S carries both.

IRC §1463 provides the one meaningful escape valve, and it is partial. Where the beneficial owner has actually paid the tax, the withholding agent is relieved of liability for the tax itself but remains liable for applicable interest and penalties. In practice that means chasing a former vendor for proof of a filed Form 1040-NR and paid tax, a favor they have little reason to grant.

The realistic remediation path is to reconstruct the sourcing, file the delinquent Forms 1042 and 1042-S, and attach a reasonable-cause statement addressing what the payer knew, when, and what advice it sought. Reasonable cause is meaningfully stronger when the delinquency is self-corrected than when it surfaces in an examination.

What If the Foreign Contractor Is Really an Employee?

Worker classification does not stop at the border. The common law control test applies to a worker in Lagos exactly as it applies to one in Ohio, and the factors in Rev. Rul. 87-41 and Treas. Reg. §31.3121(d)-1(c)(2) turn on behavioral control, financial control, and the nature of the relationship, none of which reference geography. A foreign worker who uses your equipment, works your hours, reports through your management chain, cannot subcontract, and has no other clients is an employee whatever the engagement letter calls them.

What is unusual is that the US consequences of misclassifying a foreign worker performing services abroad are comparatively mild. Services performed outside the United States by a nonresident alien are not "employment" for FICA under IRC §3121(b), so no Social Security or Medicare tax arises. IRC §3401(a)(6) excludes from "wages" remuneration for services "performed by a nonresident alien individual, as may be designated by regulations prescribed by the Secretary." Read it carefully: the exclusion is granted by regulation, not withheld by it. It is opt-in rather than default-on-with-exceptions, so the statute alone does nothing until you reach the regulation. Treas. Reg. §31.3401(a)(6)-1 supplies the designation and confines graduated wage withholding to services performed within the United States. A misclassified foreign employee working abroad still produces no US withholding and no US information return on those foreign-source wages, because the sourcing rule reaches the same answer either way.

The real exposure sits abroad:

• Local employment and payroll obligations. Most jurisdictions apply their own employee tests and are less deferential to contract labels than US law. Retroactive payroll tax, social insurance contributions, mandatory benefits, and statutory severance can be assessed years later.
• Permanent establishment risk. A worker who habitually concludes contracts on your behalf can create a permanent establishment for the US company in their country under local law and the applicable treaty, converting a payroll question into a foreign corporate income tax filing obligation. That is squarely a cross-border tax planning problem.
• Status changes without notice. A contractor who relocates to the United States mid-engagement changes the sourcing answer prospectively, and if they become a US resident under the substantial presence test, retroactively for the year. Cross-border services contracts should require notice of any change in country of performance or immigration status.

Bottom Line

The threshold question is not which form to file. It is what you are actually paying for, and where. Ask it in two parts. Where were the services performed, which sets the source of the compensation under §861(a)(3) and §862(a)(3)? And does the contract license a copyright right rather than assign or merely deliver the work, which puts a royalty slice on the place-of-use rule in §861(a)(4)? Answer both and the forms follow. Collect a Form W-8BEN before paying regardless, because that documentation is what keeps the presumption rules from converting a non-event into Form 1099 reporting and 24% backup withholding under §3406.

The price of getting it wrong is not a paperwork penalty. IRC §1461 makes the payer personally liable for the tax it failed to withhold, the gross-up formula in Treas. Reg. §1.1441-3(f)(1) can enlarge that liability where the payer absorbs it, and §6721 and §6722 stack on top at $340 per return and per statement.

If you engage contractors outside the United States, bring them here for project work, or are unsure whether a payment you have already made should have been withheld on, our international tax team sources the compensation, documents the position, and prepares any delinquent Forms 1042 and 1042-S. Have questions about paying foreign contractors and withholding on cross-border services? Contact TS CPA for a free consultation. We respond within the same day.

Official IRS and Government Sources

• IRC Section 861, Income From Sources Within the United States
• IRC Section 862, Income From Sources Without the United States
• IRC Section 1441, Withholding of Tax on Nonresident Aliens
• IRC Section 1442, Withholding of Tax on Foreign Corporations
• IRC Section 1461, Liability for Withheld Tax
• IRC Section 3401, Definitions for Wage Withholding
• Treas. Reg. Section 1.1461-1, Payment and Returns of Tax Withheld
• Treas. Reg. Section 1.1461-2, Adjustments for Overwithholding or Underwithholding of Tax
• Treas. Reg. Section 1.1441-4, Exemptions From Withholding for Certain Effectively Connected Income
• Treas. Reg. Section 1.6041A-1, Returns Regarding Payments of Remuneration for Services
• Treas. Reg. Section 1.1441-3(f), Withholding Agent Payment of Tax and Gross-Up Formula
• Treas. Reg. Section 1.6302-2, Deposit Rules for Tax Withheld on Nonresident Aliens
• IRS Instructions for Form 1042
• IRS Instructions for Form 1042-S
• IRS About Form 8233
• IRS Form 15397, Application for Extension of Time to Furnish Recipient Statements
• Rev. Proc. 2025-32, Inflation-Adjusted Penalty Amounts
• IRS About Form W-8BEN
• IRS Publication 515, Withholding of Tax on Nonresident Aliens and Foreign Entities
• IRS Pay for Personal Services Performed