If have filed the 2020 tax return then to make changes you would have to amend 2020 tax return.
Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.
See this TurboTax support FAQ on amending a tax return originally completed and filed using the 2020 TurboTax online editions - https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/01/27577
The IRS Form 1040-X for amending a 2020 tax return is scheduled to be available on 03/25/2021 (subject to change)
If you have
NOT
filed the 2020 tax return -To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.
This will take you back to the 2020 online tax return where you can make changes to the tax return before filing.
Actually after Printing my returns yesterday and , NOT email filing and specifically stating that I was NOT finished when I closed the program, I cannot get back into the program to review and/or modify them, by going again going through and checking them using the step by step program I paid for. There is no warning that this will happen. ( I intend to mail my returns. I understand that I did not efile. )
@dweber2037 wrote:
Actually after Printing my returns yesterday and , NOT email filing and specifically stating that I was NOT finished when I closed the program, I cannot get back into the program to review and/or modify them, by going again going through and checking them using the step by step program I paid for. There is no warning that this will happen. ( I intend to mail my returns. I understand that I did not efile. )
If you have
NOT
filed the 2020 tax return -To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.
This will take you back to the 2020 online tax return where you can make changes to the tax return before filing.