Interest on U.S. Government Obligations
Enter the total amount of interest income (to the extent includible in federal adjusted gross income) derived from U.S. government obligations, which federal law prohibits states from taxing (for example, U.S. government bonds such as Saving Bonds Series EE or Series HH and U.S. Treasury bills or notes).
For Series EE U.S. Savings Bonds, you are entitled to include on Line 40 only the amount of interest subject to federal income tax after exclusion of the amounts reported on federal Form 8815. In general, you will report the net taxable amount on federal Form 1040, Schedule B, or federal Form 1040A, Schedule 1.
Do not enter the amount of interest income derived from Federal National Mortgage Association (Fannie Mae) bonds, Government National Mortgage Association (Ginnie Mae) bonds, and Federal Home Loan Mortgage Corporation (Freddie Mac) securities. Federal law does not prohibit states from taxing interest income derived from these obligations and this interest income is taxable for Connecticut income tax purposes.
Do not enter the amount of interest paid to you on any federal income tax refund.