Any amount of income that is more than 49 cents must be reported, whether you get a 1099 form for it or not. If you have bank interest less than $10, the bank is not required to send you a 1099-INT, but you are required to report the income. Report it as if the bank sent you a 1099-INT. Just enter the bank name as the payer and put the interest in Box 1. That is all you have to do.