After you file

To amend your 2016 taxes if you need to make changes and your taxes were already e-filed and accepted (or mailed)
  1.Sign into your TurboTax account, if you're not already signed in.
  2.In the 2016 tax year section, click amend (change) return.
  3. In the pop-up, click amend using TurboTax online.
  4.Click continue on the we'll help you change (amend) your return screen.
  5.Follow the on-screen directions to amend your return.
  6.When you're done, will provide instructions to print and mail your amended return because and amended return can't be