Here are some quick links to commonly needed tax forms:
1040 U.S. Individual Income Tax Return
1040A U.S. Individual Income Tax Return
1040EZ U.S. Individual Income Tax Return
Sch A & B Itemized Deductions & Interest and Ordinary Dividends
Sch C Profit and Loss from Business
Sch C-EZ Net Profit from Business
Sch D Capital Gains and Losses
Sch D-1 Continuation Sheet for Schedule D
Sch E Supplemental Income and Loss
Sch EIC Earned Income Credit
Sch F Profit and Loss from Farming
Sch H Household Employment Taxes
Sch J Farm Income Averaging
Sch R Credit for the Elderly or the Disabled
Sch SE Self-Employment Tax
Sch 1 Interest and Ordinary Dividends for Form 1040A Filers
Sch 2 Child and Dependent Care Expenses for Form 1040A Filers
Sch 3 Credit for the Elderly or the Disabled for Form 1040A Filers