Get your taxes done using TurboTax

not familiar with TT online myself but I think regardless of TT version, you should be able to edit/review the 1099 even if it was imported, and after the screen with the figures you should get an interview question "I need to adjust the interest on my form" and then a place to enter the amount (as a positive number) and a dropdown for the reason as "my accrued interest is included in this 1099-INT"