What is a W-4 Tax Form?

Updated on January 2, 2024

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W-4 definition and meaning

A W-4 tax form is an IRS document that every new employee completes. It is used to determine what taxes should be withheld from their pay by a new employer.

 

More about W-4 tax forms

Last revised in 2020, the current W-4 uses a five-step process for determining employee withholding. Not only should it be filled out when an employee is hired, but also any time their life or financial situation changes.

Using W-4 in a sentence

“When I changed jobs, I decided to claim myself as a dependent, not realizing it would mean I’d owe taxes at the end of the year.”

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