You should request a 1099-INT from your bank for interest
earned on your savings bonds
To enter interest income:
Type in 1099-int
in the search box, top right of your screen, then click the
magnifying glass
Click the jump to 1099-int link in the search
results.
Follow the onscreen instructions to enter
Arrive at the Let's get your 1099-INT or brokerage
statement details page
Check the box My form has info in more than just box 1 (this
is uncommon)
Enter savings bond interest in box #3 Saving Bonds and
treasury int