To edit the name on the tax return, follow the steps below:
Please follow these instructions to make changes to your personal Information in TurboTax:
You have to actually be in the return. When you first sign in to your return, click Continue in one of the sections: Personal Info, Wages & Income, Deductions & Credits, etc. [See Screenshot #1, below.]
Then the black navigation bar on the left will populate. [Screenshot #2]
Screenshot #1
Screenshot #2