Form 8233

What is Form 8233?

Form 8233 is a document issued by the Internal Revenue Service (IRS) for Non-Resident Alien (NRA) employees. A Non-Resident Alien is a foreign individual who has not met the IRS standards for US residency. This means that they do not hold a green card or have not spent enough time in the country to qualify as a resident for tax purposes. This form helps NRA employees claim exemption from federal income tax withholding (FITW) based on international agreements between the US and the employee’s country of residence.

Under IRS rules (IRC Section 1441), payments to Non-Resident Aliens for independent personal services are generally subject to a 30% withholding tax. However, people from countries with US tax treaties may qualify for reduced rates or full tax withholding exemptions. Form 8233 is used to claim these treaty benefits on US-sourced income.

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Who needs to fill out IRS Form 8233?

Most Non-Resident Alien individuals living and working in the US (including those on an F-1 student visa or J-1 exchange visitor visa) should fill out Form 8233. This allows non-residents to benefit from any tax treaties the US has made with their home country.

However, there's a difference between who needs to fill out Form 8233 and who should submit the form. While an NRA individual must fill out and sign the form, their employer must determine eligibility, sign the form themselves, and file it with the IRS.

What is a Non-Resident Alien?

A Non-Resident Alien is any person who isn’t classified as a US citizen or resident within the calendar year. To be considered a US resident, an individual must pass either the green card test or the substantial presence test.

For tax purposes, an employee may also be considered a Non-Resident Alien individual if they qualify as a resident of a treaty country, or are a legal resident of the following areas:

American Samoa
Commonwealth of the Northern Mariana Islands
Guam
Puerto Rico
US Virgin Islands.

How to fill out IRS Form 8233

Form 8233 allows Non-Resident Alien employees to claim exemption from US federal income tax withholding (FITW) under an applicable tax treaty. To ensure accuracy and compliance, both the employee and employer must follow specific steps when completing and submitting the form.

Step 1: Provide a Taxpayer Identification Number (TIN)

Non-Resident Aliens must provide a valid TIN: either a Social Security Number (SSN) or an Individual Taxpayer Identification Number (ITIN)
If the employee is not eligible for an SSN, they must apply for an ITIN using Form W-7 and include proof of ineligibility, such as an SS-5 denial letter.

If a TIN is pending, the individual should:

Attach a copy of Form W-7 and proof of SSN ineligibility
Attach a copy of Form SS-5 if an SSN application is in progress.

Step 2: Complete employer checks

Verify your employee’s eligibility for tax treaty exemption
Complete and sign Part IV of Form 8233
Submit a copy of the completed form to the IRS.

Step 3: Process the form

The IRS may take several weeks to issue or confirm the employee’s ITIN. Employers should retain copies of all submitted documents.

Supporting documents you might need to file a Form 8233

An NRA employee will likely be required to include supporting documents with Form 8233 to prove their eligibility for tax exemption, such as:

I-20, Certificate of Eligibility for Non-Immigrant Student Status
I-94, Arrival/Departure Record
Student visa
Passport
Proof of non-resident status

The documentation an NRA individual needs depends on:

What type of work they do
The type of income they receive
The regulations in their applicable tax treaty

How often does Form 8233 need to be completed?

Form 8233 must be completed every tax year that a non-resident employee wishes to claim exemption from US federal income tax withholding. The form must also be submitted for each employer and for each type of income earned. For example, wages, consulting fees, or scholarships.

This means that if a Non-Resident Alien employee works for multiple organizations or earns different types of income, they will need to file more than one Form 8233 during the year. Each submission follows the same process provided above: requiring employer review, signature, and submission to the IRS for approval before the exemption can take effect.

What’s the difference between Form 8233 vs. W-8BEN?

Both Form 8233 and Form W-8BEN are used by Non-Resident Aliens to claim US tax benefits under international tax treaties. However, they apply to different types of income and follow different submission processes. As an HR professional handling international employees, it’s important to know which form to use to ensure proper withholding tax compliance.

Used for

Claiming tax exemption on income from personal services (employment, consulting, teaching, etc.).

Claiming treaty benefits on income from US sources, such as dividends, interest, or royalties.

Filed by

Foreign individuals working in the US

Foreign individuals earning from US investments or business income.

Types of Income

Wages, salaries, consulting payments.

Interest, dividends, rents, royalties, annuities.

Submission

The employer submits to the IRS after signing.

Sent directly to the withholding agent (bank, company, or payer).

IRS Approval required?

Filed each calendar year for each employer or income type.

Valid for up to three years.

Valid For

One year (must refile annually).

Up to three years or until details change.

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What do employers need to know about Form 8233?

After reviewing Form 8233, employers must complete Part IV: Withholding Agent Acceptance and Certification by adding their details and signature. Once signed, the following filing steps are required:

Prepare three copies of the completed Form 8233, including all attachments.
Provide one copy to the NRA employee.
Retain one copy for your company’s records.
Submit one copy to the IRS Department of the Treasury.

The form must be sent within five days of signing—either by mail to the address listed in the form instructions, or by fax to 877-824-9781 or 267-466-1365.

The exemption applies retroactively to the start date shown on the form, but the IRS should be allowed at least 10 days to review it. If the IRS denies the exemption request, employers must immediately begin withholding the appropriate federal income taxes from the employee’s pay.

What are the key terms on Form 8233?

For HR and payroll teams working with Non-Resident Aliens, understanding the key terms in Form 8233 is important for staying compliant and avoiding mistakes. These terms explain how taxes are applied, when treaty benefits can be used, and what information or documents are needed.

NRA employee: Any employee who isn’t a US citizen or US resident is considered an NRA employee. They’re subject to US taxes on income from US sources.
Green Card test: Tests whether an individual has a Permanent Resident Card (a Green Card) from the US Citizenship and Immigration Services (USCIS).
Substantial presence test: Checks whether a person has been physically present in the US for the required minimum period.
Independent personal services: Services a self-employed NRA individual performs as an independent contractor in the US.
Dependent personal services: Services an NRA individual performs as an employee working for an employer in the US.
Tax treaties: An agreement between two countries where they establish income tax rules and regulations for their citizens and residents.
Withholding agent: Any individual or entity who controls or is in custody of an amount for an NRA employee that's subject to withholding.
Beneficial owner: In most cases, this is the individual who is required to include the gross income payment on a tax return.
Taxpayer identification number (TIN): Any identification number used by the IRS, such as an SSN, ITIN, and EIN.

For more information on these key terms, check out the IRS’ Form 8233 instructions.

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