Form 8233

When a foreign contractor needs Form 8233

Three conditions have to line up. The contractor is a nonresident alien individual, not a company. The pay is for personal services performed in the United States. And a tax treaty between the United States and the contractor’s country of residence exempts that pay, in whole or in part.

The instructions define independent personal services as services performed as an independent contractor in the United States by a nonresident alien who is self-employed. Their examples include contract labor, consulting fees, professional fees paid directly to the person doing the work, and honoraria for visiting speakers. Some treaties have no independent personal services article, and the instructions say the pay may instead fall under the business profits article. Form 8233 covers both.

The treaty usually comes with limits. Publication 515 says that under some treaties, pay for independent personal services performed in the United States is exempt only if the contractor is present temporarily, usually not more than 183 days, and is a resident of the treaty country. The instructions add that a contractor with an office or fixed base in the United States generally cannot claim the exemption at all.

If none of this applies, the contractor does not need the form. A designer who never travels to the United States gives you a W-8BEN, and an entity that invoices you gives you a W-8BEN-E.

What the contractor fills in

Part I identifies the contractor. Line 2 needs a US taxpayer identification number, which is where Form 8233 differs most from a W-8BEN. In most cases that is an SSN; a contractor without one must get an ITIN by filing Form W-7 with the required documentation. If the number has been applied for but not received, the contractor can attach a copy of the completed Form W-7 or SS-5.

Part II is the treaty claim. Line 11a describes the services, and the instructions offer “consulting contract to design software” as an acceptable description. Line 11b is the total compensation expected from this payer during the tax year, estimated if necessary. Lines 12a and 12b name the treaty and the specific article. Line 12c says how much is exempt: “All,” or an exact dollar amount if only part is.

The form also carries the tax year above Part I. The instructions require a separate Form 8233 for each tax year, each withholding agent and each type of income, so a contractor who returns next year for another onsite project signs a new one.

What the payer does after receiving it

The payer is the withholding agent, and the instructions give it an active role. Review the form and, if you are satisfied that the exemption is warranted based on the facts presented, complete and sign the certification in Part IV.

Then make three copies, each with any attachments. Give one to the contractor, keep one, and within 5 days of acceptance forward one to the IRS in Philadelphia; the instructions also give a fax number. The exemption applies retroactively to the first payment the form covers, but you must wait at least 10 days after properly mailing it to see whether the IRS objects.

There are two situations in which you must not accept the form and must withhold instead: you know, or have reason to know, that any fact or statement on it may be false, or that the contractor’s eligibility cannot be readily determined. If you accept it and later learn either, notify the IRS and begin withholding on amounts not yet paid. If the IRS tells you the form is unacceptable, you begin withholding immediately.

In practice the timing problem is common. Publication 515 notes that you often must withhold under the statutory rules anyway, because the facts the treaty exemption depends on, such as days of presence, may not be knowable until the tax year ends. The instructions single out treaties such as those with Canada, India and Portugal. The contractor then recovers any overwithheld tax by filing Form 1040-NR.

Form 8233 on a Stripe Connect platform

On a Stripe Connect platform that pays contractors, the platform is the payer, so the review, the Part IV signature and the 5-day forward are the platform’s job, whatever tool collected the form.

The common case is a contractor who usually works remotely and travels to the United States for part of an engagement. Say a contractor in a treaty country is paid 12,000 USD for a project, of which 3,000 USD covers two weeks onsite in New York. The 9,000 USD for remote work is foreign-source and covered by the contractor’s W-8BEN. The 3,000 USD is US-source pay for independent personal services. Without an accepted Form 8233, 30% of it, 900 USD, must be withheld and deposited, so the contractor receives 2,100 USD for that part of the work.

With an accepted Form 8233 claiming the 3,000 USD as exempt, the platform transfers the full amount. It still keeps the copy, tracks the tax year, and reports the payment after year end: Publication 515 classifies this pay under income code 17 for Form 1042-S, which is due by March 15. A withholding agent that files a Form 1042-S must also file Form 1042, even if it withheld nothing.

The practical habit is to ask about travel before it happens. A contractor’s first US trip is the point where the W-8BEN on file stops covering everything you pay them.