You'll be able to access your most recent 3 tax returns (each of which include your Form 1040—the main tax form—and any supporting forms used that year) when sign into 1040.com and go to the My Account screen. If you filed through a tax preparer or CPA, they can provide a printed or electronic copy of your tax return.

Near the bottom of Form 1040, you'll write down how much income tax you're responsible for. At that point, you get to subtract any tax credits that you might qualify for, as well as any taxes you've already paid via withholding taxes on your paychecks during the year.

Generally, most U.S. citizens and permanent residents who work in the United States need to file a tax return if they make more than a certain amount for the year. Taxpayers may have to pay a penalty if they're required to file a return but fail to do so.

Sign in to the account you used to file. Select Your tax returns & documents. Select the year of the return you wish to print. Select Download/print return (PDF).