Question: what is the difference in claiming 0 or 1 on w4?
Answer: By placing a “0” on line 5, you are indicating that you want the most amount of tax taken out of your pay each pay period. If you wish to claim 1 for yourself instead, then less tax is taken out of your pay each pay period. 2. You can choose to have no taxes taken out of your tax and claim Exemption (see Example 2).