Because the return was accepted by the IRS you will have to file an amended tax return using Form 1040X to add the missing 1099-INT,.information.
You can file an amended tax return using TurboTax. When you file your amended tax return it will have to mailed to the IRS. When you mail your return you can include your payment for the amount you will owe the IRS
The FAQ link below provides information on how to amend your tax return.
[Edited 03/10/2020 | 8:26 am PDT]
https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed
