Long Matured HH bonds?

HH bonds are sold at face value and pay interest every year. That interest is exempt from state tax, but you should have paid federal tax anually on that interest.

Did you get the HH bonds in exchange for E or EE bonds? If so, the interest you earned on the E/EE bonds was deferred, and that's what they'd be reporting. You pay the taxes on that interest now, and when you cash in the bonds there's no further tax.

If you didn't get the HH bonds in exchange, I can't see that there's any interest due at maturity, so it'd be interesting to find out what the notice says.

I don't understand why you state the letter says "have matured HH bonds" and you state "I was going to report the interest when I cashed the bonds." If you haven't cashed the bonds, how have they matured?

I also don't understand why you say "The treasury sent me a notice . . ." and "I haven't gotten the notice, whatever it is".

As the other reply states, perhaps this is all about the deferred interest on the EE bonds which you exchanged for the HH bonds. And, perhaps the treasury is sending the IRS notice of that deferred interest so when you redeem the HH bonds, they will be sure you pay taxes on that deferred interest at that time.

from

How long may I continue to defer the interest? You may wait to include the deferred interest on your Federal income tax return until you are filing your return for the year in which the first of these events occurs: a.. You cash in (redeem) the HH Bond. b.. The HH Bond stops earning interest. [note 30 years after issuance of the HH bond] c.. The HH Bond is reissued to show a change in ownership that is a taxable event. Reissuing or Replacing a Savings Bond. We will include the deferred interest on an IRS 1099-INT for that year.