State tax filing

You don't need to file an amended federal tax return since it's a California form you need to correct. 

To fix this, amend your state return (see below) and zero out the information on Form 568. Attach a statement to the amended 568 indicating that the form was filed in error. You'll only mail in the amended Form 568 and the explanation - not your entire CA state return.

Follow the steps below to file access your filed return and change Form 568 with TurboTax Online:

1. Open TurboTax.
2. Scroll down to Your tax returns & documents and select the year you want to amend.
3. Select Amend (change) return, then Amend using TurboTax Online.
4. On the screen OK, let's get a kickstart on your 20XX amended return, select The IRS or state sent me a notice (this option will let you to amend only your state return without making changes to your federal) and Continue.
5. On the next screen, select Something Else and Continue.
6. On the screen Tell us which 20XX return(s) you want to amend, select 20XX state.
7. Continue until the Let's Amend your State Taxes screen. Select Amend next to your state return, and continue through the screens to make your changes.

For additional information, refer to the TurboTax Help article How do I amend my state tax return?