See pub 17 top of page 57 <a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/p17.pdf">https://www.irs.gov/pub/irs-pdf/p17.pdf</a>
Method 1. Postpone reporting the interest until the earlier of the year you cash or dis- pose of the bonds or the year they mature. (However, see Savings bonds traded, later.)
