Just enter it like bank interest on a 1099INT. You don't need to have a 1099 or bank name.
If you received interest from someone either as mortgage interest or other interest, enter it like you had received a 1099-INT and put the amount in Box 1. Enter it under….
Federal Taxes Tab
Wages & Income
Interest and Dividends
Interest on 1099INT - Click the Start or Update button
Don't enter a bank or broker name and don't try to import it. At the bottom pick - Change How I enter my Form
Then on the next screen pick I'll Type it in Myself
