Why is claiming 0 not enough?
Why is claiming 0 not enough? Claiming more allowances will lower the amount of income tax that's taken out of your check. Conversely, if the total number of allowances you're claiming is zero, that means you'll have the most income tax withheld from your take-home pay.
What happens if you don t file your taxes but don t owe anything?
There's no penalty for failure to file if you're due a refund. However, you risk losing a refund altogether if you file a return or otherwise claim a refund after the statute of limitations has expired.