What happens if you claim zero allowances on the W 4 form?

If you claim zero allowances on the W-4 form, your employer will withhold the maximum amount of federal income tax from your paycheck. This often results in a larger tax refund when you file your tax return, as more money has been withheld throughout the year. However, claiming zero may also lead to less take-home pay each pay period. It’s important to consider your overall tax situation to determine the best number of allowances to claim.