If I made an error on a section of your return but already submitted it are you able to go back at edit or fix the mistake?

the return at this point can't be recalled. the IRS won't open e-filing until 2/12/2021. so you'll have to wait. if your return is rejected you can fix it and resubmit. if it is accepted you'll have to wait until it is fully processed and then file an amended return. it is possible the IRS will make changes to your return and adjust your refund accordingly so you won't have to amend. watch for a notice from the IRS telling you what to do.

To amend your return you need to log into your TurboTax account to see an option to Amend a Filed and Accepted Return. Click on that to start the amending process.  Once you are finished making changes to your return you will need to print it out, sign, date and mail it to the IRS.

Please see the below FAQ for more information on amending a 2020 tax return:

https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/00/27577