New employees complete a ___________ to ensure taxes are properly withheld.

New employees complete a W-4 form to ensure that the correct amount of federal income tax is withheld from their paychecks. The W-4 form allows employees to declare their filing status, number of dependents, and any additional withholding preferences they might have. This information helps employers determine how much federal income tax to withhold from the employees' earnings so that they are neither overtaxed nor undertaxed throughout the year.

The W-2 form, on the other hand, is used by employers to report an employee's annual wages and the taxes withheld from those wages, so it is not relevant for new employees at this stage. The W-10 form is not related to employee tax withholding; it is actually used for reporting certain types of income. The W-3 form is a summary form that accompanies W-2s when they are submitted to the Social Security Administration, and it is not completed by individual employees.