How do I adjust my tax withholding for a $0 return?
You can adjust your tax withholdings by filling out IRS Form W4 with your employer. The form lets you adjust your income tax withholding by changing the number of exemptions you claim. More exemptions means your employer will withhold less money; fewer exemptions will increase withholding.
Also question is, how can you owe taxes if you claim 0?
If you claim 0, you should expect a larger refund check. By increasing the amount of money withheld from each paycheck, you'll be paying more than you'll probably owe in taxes and get an excess amount back – almost like saving money with the government every year instead of in a savings account.