I redeposited RMD to IRA when RMD was waived for 2020. How do I get the redeposited amount waived from fed tax?

Yes, RMDs were waived for 2020. The CARES Act provisions apply to most retirement plans, including traditional IRAs, SEP IRAs, SIMPLE IRAs, 401(k) plans, 403(b) plans, 457(b) plans, profit sharing plans and other defined contribution plans. The RMD suspension does not apply to qualified defined benefit plans.

If you took a RMD but returned it in time then follow these steps when entering your 1099-R:

Please follow these steps to enter your 1099-R and RMD rollover:

1. Login to your TurboTax Account 
2. Click on the Search box on the top and type “1099-R”
3. Click on “Jump to 1099-R”
4. Continue until "How much was a RMD?" and select "none"
5. Continue "Did you rollover this amount to another retirement account" and select "Yes, I rolled over some or all of it to an IRA or other retirement account (or returned it to the same account) 
6. Continue answering the questions.

 You must indicate to TurboTax that none of the distribution was RMD. If you already enter the 1099-R as RMD and changing your answer to the RMD question doesn't work then you have to delete and renter the 1099-R form