What SweetieJean is saying is that, based on the information you have provided, you will not have to pay any federal income tax this year, so you don't need to have any tax withheld. Any tax that you do have withheld for the rest of the year will be refunded when you file your tax return, so that's how you will get a refund. This is assuming that you do not have any other income that you haven't told us about.
