Do You Have More Than One Job?

If you do, you need to factor in all those jobs when filling out your W4 for each job. To start with claim single on all W4’s.

Next, you will need to have additional withholding on each job because the table assumes you only have the current job. Each job’s W4 assumes you get the standard deduction and only withholds on the income over the standard deduction- you will be short.