I don't know how to do that.Please help.

You just mark on your tax return that you were claimed by someone else on their return If you have a refund coming, you should still receive either all of it or most of it back.

Sarah May: You will file your tax return as Single dependent. You will not get your personal exemption, but you will still get standard deduction. Also you won't get stimulus tax rebate, and your dad won't get for you as if you are over 17.

Read: Your Tax Return: Filing Requirement for a Dependent (http://taxipay.blogspot.com/2008/02/filing-requirement-for-dependent.html)

Read for stimulus rebate: Your Tax Return: Are You Eligible for 2008 Stimulus Tax Rebate Payment? (http://taxipay.blogspot.com/2008/02/are-you-eligible.html)

Good detailed answer, MukatA