When a Foreign Boxer Fights in the US: Article 17 and the Athlete/Entertainer Rules

← All articles

July 19, 2026·Updated August 2, 2026·11 min read·Industry Spotlights

Most US income-tax treaties contain an article that quietly overrides the rest of the treaty for one specific group of people: performing artists and athletes. It is usually called Article 17 ("Artistes and Sportsmen," or in newer treaties "Entertainers and Athletes"). If you are a promoter, venue, or production company paying a foreign boxer, musician, actor, or other performer to appear in the United States, this is the article that decides how much you must withhold, and it almost always lands on the less favorable answer.

This article uses a boxing match as the running example, but the same rules apply to any athlete or entertainer performing in the US.

The core rule: where you perform is where you are taxed

Normally, a foreign individual who comes to the US to provide services can often escape US tax under a treaty. The independent-personal-services and business-profits articles generally say the US may tax that income only if the person has a US permanent establishment or fixed base. A genuine independent contractor with no US base, who files the right paperwork, can frequently bring US withholding down to 0%.

Article 17 takes that off the table for performers. Its core rule is short and deliberate: income that an entertainer or athlete earns from their personal activities performed in the United States may be taxed by the US, regardless of what the services or business-profits articles would otherwise allow. The relief that an ordinary contractor could claim simply does not reach performance income.

Why does this article exist? Entertainers and athletes are mobile and can earn very large sums in a single short appearance. Without a special rule, a performer could fly in, collect a seven-figure purse, fly out, and argue that the normal treaty articles exempt the whole amount because they had no fixed US presence. Treaty negotiators decided that the country where the performance actually happens (and where the ticket-buying, broadcast-paying audience is) should keep the right to tax that income. Article 17 is the override that secures it.

Worked example: a UK heavyweight fights in Las Vegas

Suppose a UK heavyweight boxer signs to fight a bout in Las Vegas for a $2,000,000 purse. The fight happens entirely in the US.

Under Article 17 of the US–UK treaty, the income attributable to that US performance is US-source and US-taxable. The fact that the UK treaty's business-profits and independent-services articles would normally exempt a UK resident with no US permanent establishment makes no difference. Article 17 overrides them for the boxer's performance income.

Now contrast that with an ordinary independent contractor. Imagine the same UK individual instead flew to the US to do a week of management-consulting work for a US client, with no US office and a stay under 183 days. That person could file a valid treaty claim and bring withholding to 0% on the US-source service income. The person and the country are identical. What changes the answer is that the boxer's income is performance income, and Article 17 governs performers.

Why Form 8233 usually does not rescue the boxer

Form 8233 is the form an individual uses to claim a treaty exemption from withholding on personal-services income. It is a real and useful mechanism: for genuinely exempt service income, it is exactly how the contractor in the table above would claim 0%.

The problem for performers is which treaty exemption Form 8233 invokes. It invokes the services / business-profits relief, and that is precisely the relief Article 17 overrides for performance income. So a foreign boxer can fill out Form 8233 perfectly, but the underlying treaty exemption it points to has already been switched off by the entertainer/athlete carve-out. The claim generally fails for the purse.

To be precise: Form 8233 is not "wrong" or unavailable to athletes in every case. It remains the mechanism for any genuinely exempt personal-services income a performer might have. But for the performance income itself (the purse, the appearance fee), Article 17 usually defeats the claim. Promoters should not treat a signed Form 8233 as authority to stop withholding on a fight purse.

The default consequence: 30% gross

When no relief applies, US-source FDAP income paid to a foreign person is subject to the statutory 30% withholding rate (IRC §1441/§1442) on the gross amount, no deduction for the performer's expenses. On a $2,000,000 purse, that is $600,000 withheld and remitted to the IRS, before the boxer has paid a single trainer, manager, or travel cost.

That gross-basis 30% is harsh precisely because the performer's real expenses (training camp, cornermen, travel, agent fees) can be substantial, so their actual US tax on a net basis is often well below 30% of the gross. That gap is what the relief path below is designed to close.

The relief that does exist: a Central Withholding Agreement (Form 13930)

The IRS offers a tailored relief mechanism for athletes and entertainers: a Central Withholding Agreement (CWA), requested on Form 13930. A CWA is a contract negotiated with the IRS before the event in which the IRS agrees that withholding can be based on the performer's expected actual US tax, that is, income net of documented, reasonable expenses, instead of 30% of the gross.

In practice, that can move withholding from 30%-of-gross to a figure much closer to what the performer would actually owe on a net-basis return, freeing up cash that would otherwise sit with the IRS until a refund is claimed long after the fight.

Practical points to know about a CWA:

• It is specifically for athletes and entertainers, the same population Article 17 targets. It is not a general-purpose withholding reduction.
• Apply well ahead of the event. The IRS needs lead time to review the budget and negotiate the agreement, generally at least 45 days before the first event. Leave a comfortable margin. A request that arrives too close to fight night will not be processed in time, and the 30% gross default will apply.
• It can cover a tour or series, not just a single bout: one agreement can span multiple US dates.
• It is built on a credible budget. The performer (or their representative) submits projected gross income and itemized, documented expenses. The IRS sets the withholding amount from that.

Advisor caveat: The specific CWA timing window, any income floors or eligibility conditions, and the documentation the IRS requires are set by the current Form 13930 instructions and IRS practice, which change. Treat the "generally at least 45 days" figure as a planning rule of thumb, not a deadline to bank on, and confirm the current requirements with a qualified tax advisor before relying on a CWA for a specific event.

Sourcing: only the US-performance portion is US-source

Article 17 reaches only income attributable to activities performed in the US. If the boxer's compensation also covers activity outside the US, only the US-performance slice is US-source.

This matters most for multi-country tours and event series. If a fighter's contract covers a three-bout run (say London, then Las Vegas, then Toronto), only the Las Vegas portion is US-source and within reach of US withholding. A defensible method (for example, allocating by the number of events, or by the contractually assigned fee per location) should be used to split the income, and the allocation should be documented. The same logic applies to a touring musician or a theatrical production that plays several countries.

Training time: can the purse be split with the training camp?

A UK boxer trains ten weeks at home, flies in for fight week, and collects a US purse. The natural question is whether part of that purse can be allocated to the UK training time and treated as foreign-source. The honest answer is that the authorities support the allocation more than payors usually assume, and they also leave it genuinely unsettled for a one-bout purse.

The regulation gives non-employees a facts-and-circumstances standard, not an automatic rule. Under Treas. Reg. §1.861-4(b)(2)(i), a non-employee individual's compensation is sourced "on the basis that most correctly reflects the proper source of that income under the facts and circumstances of the particular case." The time-basis fraction is the default for employees: the US-source amount "bears the same relation to the individual's total compensation as the number of days of performance of the labor or personal services by the individual within the United States bears to his or her total number of days of performance of labor or personal services" (Treas. Reg. §1.861-4(b)(2)(ii)(E)). For a boxer on a bout agreement (i.e., typically an independent contractor, not an employee), the facts of what the purse pays for control the analysis.

The leading case cuts against the flat "training never counts" assumption. In Stemkowski v. Commissioner, 690 F.2d 40 (2d Cir. 1982), a Canadian NHL player argued that his contract salary compensated training camp and playoff service, not just the regular season, so his Canadian training-camp days belonged in the allocation. The Second Circuit agreed as to training camp, holding that the contract's "plain language … requires in Paragraph 2(a) that a player 'report to the Club training camp … in good physical condition,'" and reversed the Tax Court on that point. The principle is that the allocation period follows what the compensation actually covers. If the paying contract requires preparation, the preparation days count.

However, a bout purse is not an NHL salary. A purse paid for one fight, under the facts-and-circumstances standard, most naturally sources to where the fight happens, and the IRS's practical posture points the same way: purses are withheld at 30% of gross when the bout is in the US, with the Central Withholding Agreement as the built-in relief valve. In Goosen v. Commissioner, 136 T.C. 547 (2011), the Tax Court sourced a golfer's on-course personal-services income by the days he played in the US against total days played in the year, and Garcia v. Commissioner, 140 T.C. 141 (2013), followed the same framework. Playing days, not practice days, were the measure in both. Note, no published IRS guidance squarely addresses preparation time for a single-event purse.

In this case, the practical takeaways follow the contract. A boxer whose bout agreement expressly compensates the training camp (e.g., required camp attendance, promotional obligations during camp, a stated training allowance) has a Stemkowski-based position for allocating part of the purse to foreign training days, and the allocation should be documented with the same rigor as any sourcing split: camp location records, contract language, and a stated method. A boxer whose agreement simply pays for the fight should expect the purse to be treated as US-source in full. The position is contested territory, so a payor should withhold conservatively (or route the question into a CWA, which resolves the cash-flow problem directly) and let the boxer's return present the allocation. Consult a qualified tax advisor before relying on an allocation position for a material purse.

Endorsements and image rights are a different animal

Not everything a famous boxer earns is performance income. Endorsement, sponsorship, and image-rights payments, money paid for the use of the athlete's name, likeness, or copyrighted image rather than for the act of fighting, generally follow the royalty rules, not Article 17. Royalty income has its own treaty articles, rates, and sourcing tests, which can produce very different (and sometimes lower) outcomes than the 30% performance default.

The line is not always clean: a single sponsor contract can bundle an appearance fee (performance income, Article 17) with a likeness license (royalty income), and how the contract is drafted and allocated drives the tax result. For how image, film, and broadcast-type payments are classified and sourced, see How Film, TV, and Broadcast Income Is Classified and Sourced.

Why it matters: the payor is on the hook

The withholding obligation does not fall on the foreign boxer. It falls on you, the US person paying them. The promoter, venue, or production company is the withholding agent, and a withholding agent that fails to withhold the correct amount is personally liable for the tax it should have withheld, plus interest and penalties. "The fighter said his treaty exempts him" is not a defense when Article 17 governs the purse.

Before you wire a purse or appearance fee to a foreign performer:

• Assume Article 17 applies to the US-performance portion, and that the default is 30% gross.
• Do not stop withholding on the strength of a Form 8233 alone. For performance income, the underlying exemption is usually overridden.
• If the numbers are large and there is time, explore a Central Withholding Agreement (Form 13930) well before the event to lower withholding to the expected actual tax.
• Source the income correctly, withhold only on the US-performance portion of a multi-country deal, and document the allocation.
• Treat endorsement and image-rights payments separately under the royalty rules.

When the stakes are this high and the rules this specific, confirm the treatment with a qualified tax advisor before the bell rings, not after you have already paid.

This article is general information for US withholding agents, not legal or tax advice. Treaty positions turn on the payee's specific facts and the current treaty text. Confirm the analysis for your situation with a qualified tax advisor before relying on it.

Continue reading

A Foreign Musical Comes to Broadway: Who Counts as an Entertainer?

Industry Spotlights · 5 min read

How a Foreign Stage Production Is Structured, and Where Each Structure Meets US Withholding

Industry Spotlights · 6 min read

Central Withholding Agreements (CWA): Process and Eligibility

Industry Spotlights · 9 min read

This article is for general educational purposes and is not legal or tax advice. Withholding outcomes depend on the specific facts of each payment. Consult a qualified tax professional before making withholding decisions.