Just enter the box #3 dollar amount on your statement in that field in the TurboTax program.
To report US Savings Bonds interest earned in TurboTax:
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 your first two page prompts until you arrive at the third page, 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
To enter investment sales, type in investment sales, then click jump to investment
(content added, 01-25-2017, 07:23 PST)