Do you get more in your paycheck if you claim 0 or 1?

If you claim one (1) dependent (yourself) on your W4 form you will get more money in your paycheck, and less will be withheld as part of tax withholding.

Some people end up having to pay money to the Government at tax time because not enough was withheld during the year. Those people sometimes choose to claim zero (0) dependents on their W4 so that more money will be withheld during the year and they will have less to pay at tax time.