All income received, both earned and unearned income, is required to be reported on a tax return. You have to report the interest received.
To report interest income received -
Click on Federal Taxes (Personal using Home & Business)
Click on Wages and Income (Personal Income using Home & Business)
Click on I'll choose what I work on
Under Investments and Savings
On Interest on 1099-INT, click on the start or update button