Will the IRS figure the amount of tax and credits for taxpayers?

Yes, if you choose, the IRS will figure your tax, the credit for the elderly or the disabled, and the earned income credit on your Form 1040EZ, Form 1040A, or Form 1040 provided that:

  1. You file by the due date of your return (not including extensions) -  April 18, 2017, for most people, and
  2. None of the 7 criteria listed in Chapter 30 of Publication 17, Your Federal Income Tax For Individuals, that prevent the IRS from figuring your tax apply.