After you file

Yes - If you returned a 2020 RMD back to the original account (or another retirement account), you can show this in TurboTax, following these steps:

TurboTax Online

1. Click on Federal > Wages & Income.
2. Scroll down to the Retirement Plans and Social Security section and click on the Start/Revisit box next to IRA, 4701(k), Pension Plan Withdrawals (1099-R). 
3. If you've already entered one (or more) 1099-Rs, you will see a screen Your 1099-R Entries.  Click the Edit link next to the 1099-R you wish to review.   
4. On the screen, Tell us if you moved the money through a rollover or conversion, mark the radio button,  I rolled over some of all of it to an IRA... and click Continue.
5. A few screens after the 1099-R input screen, you should see a screen, What Did You Do With The Money From 401k institution?  Mark the radio button next to I moved the money to another retirement account (or returned it to the same retirement account).  
6. On the next screen, Did you rollover the gross amount of $XX (Box 1)...  mark the appropriate radio button and click Continue.

TurboTax CD/Download

1. Click Federal Taxes > Wages & Income > I'll choose what I work on
2. Scroll down to the Retirement Plans and Social Security section and click on the Start/Revisit box next to IRA, 4701(k), Pension Plan Withdrawals (1099-R). 
3. If you've already entered one (or more) 1099-Rs, you will see a screen Your 1099-R Entries.  Click on the Edit link next to the 1099-R you wish to review.   
4. A few screens after the 1099-R input screen, you should see a screen, What Did You Do With The Money From this Payer?
5. Mark the radio button next to I moved the money to another retirement account (or returned it to the same account).
6. Below the grey line, click the radio button next to I rolled over all of this money to an IRA or other retirement account (or returned it to the same account).  Click Continue.