The W-4 form is used to provide information to your employer so that they can determine how much to withhold from your paychecks. You can calculate how much you should have withheld by using the TurboTax W-4 Calculator 2024.
Refer to the TurboTax Blog Understanding Your Withholding Allowance on Your Form W-4 and What Is a W-4 Form? for more information.