If you have not yet filed your tax return you can go back to each section of TurboTax to make changes. Click on each of the tabs (Personal Info, Federal Taxes, Etc) to go back into specific sections of your return.

If you have already filed your return and need to make some changes please first make sure the changes needed require you to amend by review the following TurboTax FAQ.

https://ttlc.intuit.com/replies/3318732

If you need to amend please use the TurboTax FAQ below for instructions.

https://ttlc.intuit.com/replies/3288565