If you have filed a Form 1099-INT, it should show an amount on line 8a or 8b on your Form 1040 or Form 1040A.
To prove it, if you have not paid TurboTax fees, you can preview your form 1040 by following these steps:
1. After sign into your account, select Take me to my
return
2. To your left, select Tax Tools/Tools
3. Under Other helpful links, select View
Tax Summary
3. To your left, select Preview my 1040