I wrongly input Form 5498 IRA data as Form 1099-R. How do I correct this? I don’t need to report Form 5498.

If you haven't filed your return then please follow these steps to get to the 1099-R section:

1. Login to your TurboTax Account 
2. Click on "Search" on the top right and type “1099-R”
3. Click on “Jump to 1099-R”
4. Here you can delete any 1099-R

To enter IRA contributions please follow these steps:

1. Login to your TurboTax Account 
2. Click on "Search" on the top right and type “IRA contributions”
3. Click on “Jump to IRA contributions"

If your return has been already accepted by the IRS, then you have to file an amended return (1040X) to make changes. But you might want to wait until your refund or payment is processed. Please be aware that you can e-file your 2020 amended federal tax return, but most states require amendments to be printed and filed by mail. Please see FAQ How to amend a tax return for instructions.

Please see Where's My Amended Return? to check the status of your amended return.