TurboTax FAQ
TurboTax FAQ
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How do I amend a prior-year state return?

Amending a 2017, 2016, or 2015 state return is very similar to amending a prior-year federal return. Here are some pointers:

  • Be sure to download and install the appropriate state software.
    • For example, to amend your 2017 California return, download and install the 2017 TurboTax California State software.
    • The amendment software that we offer to prior-year TurboTax Online customers includes 1 free state download. Contact us if you need to download additional states that you previously paid for.
  • TurboTax State programs vary in amendment instructions, but you'll either find the amendment option at the beginning of the state interview or close to the end.
  • Even if you only need to amend your state return (not the federal), install the federal program for the corresponding tax year. The state program doesn't function as a standalone product.
  • If the change originates on the federal return (for example, you need to add or change your W-2 information), amend your federal return before amending your state. This allows the change to "flow" over to the state.