T
The Daily Insight

What is IRS Form W8 used for?

Author

James Craig

Published Apr 11, 2026

In a nutshell, a W 8 form is used by foreign businesses and non-resident aliens earning income from U.S. sources. Its purpose is mainly to let brokers and mutual fund companies know that the person or company in question is not subject to the usual tax withholding from investment income.

How long is a W 8 GOOD FOR?

Generally, a Form W-8 is valid from the date signed until the last day of the third succeeding calendar year unless a change in circumstances occurs that makes any information on the form incorrect. For example, a Form W-8BEN signed on September 30, 2018, generally remains valid through December 31, 2021.

What is an ECI investment?

Generally, when a foreign person engages in a trade or business in the United States, all income from sources within the United States connected with the conduct of that trade or business is considered to be Effectively Connected Income (ECI).

What is a w8 ECI?

Form W-8ECI is the Certificate of Foreign Person’s Claim for Exemption From Withholding on Income Effectively Connected with the Conduct of a Trade or Business in the United States. Generally, a foreign person is subject to U.S. tax on its U.S. source income.

What is ECI stand for?

Effectively Connected Income
Generally, when a foreign person engages in a trade or business in the United States, all income from sources within the United States connected with the conduct of that trade or business is considered to be Effectively Connected Income (ECI).

Form W-8IMY is the “Certificate of Foreign Intermediary, Foreign Flow-Through Entity, or Certain U.S. Branches for United States Tax Withholding and Reporting.” The purpose of the form is to certify that a person or business received withholdable payments on behalf of a foreigner or as a flow-through entity.

Who must file a W8?

Form W8, W 8BEN or W8 form is used by non-resident aliens who do work and/or make income in the U.S. or by foreign business entities who make income in the U.S. If you’re a legal citizen of the United States, at no point will you have to worry about filling out the form.

What’s the difference between a W8 and W9 form?

The difference between W-8 and W-9 forms lies in the fact that the W-9 tax form is only required to be used by companies or associations that are created, organized and primarily in the US, operating under United States’ laws.

Who needs to complete w-8BEN?

The W-8BEN form is applicable to foreign individuals and sole proprietors who earn money or income from U.S. sources. These individuals must provide a completed W-8BEN form to their U.S. client in order to avoid paying tax to the IRS.

What is the difference between W9 and W8?

w-9 – A Form W-9 is a document issued by the United States Internal Revenue Service (IRS) for certain taxation purposes. w-8Ben – W8Ben is for non-US residents (Individuals). For non-U.S residents who earned money from U.S based online affiliate programs, you will be asked to submit a W8Ben form.

What does form w-8imy stand for in tax form?

Form W-8IMY, Certificate of Foreign Intermediary, Foreign Flow-Through Entity, or Certain U.S. Branches for United States Tax Withholding and Reporting. For definitions of terms not defined in these instructions, see the Forms W-8 and their accompanying instructions.

When to give Form W-8 Ben to the withholding agent?

Give Form W-8 BEN to the withholding agent or payer if you are a foreign person and you are the beneficial owner of an amount subject to withholding. Submit Form W-8 BEN when requested by the withholding agent or payer whether or not you are claiming a reduced rate of, or exemption from, withholding. None at this time.

How does the IRS work with withholding agents?

Answer 34: The IRS EW-8 MOU Program, a collaborative process between the withholding agent and IRS, is open to all withholding agents. IRS works with withholding agents to develop electronic systems for beneficial owners to furnish Forms W-8 electronically and validate these forms through an automated process.

When did the IRS finalize regulations for W-8BEN?

On January 24, 2017, the Treasury Department and the IRS finalized certain regulations under sections 871 (m) and 1441 (TD 9815) and published temporary regulations under section 871 (m) to supplement certain provisions of those final regulations.