Contributing to an HSA before going on Medicare

[rrh2]

The subject line "Contributing to an HSA before going on Medicare" was very helpful.  My Medicare effective date will be 9/1/25 and I plan to start SS/Medicare benefits November 1, 2025.  My wife is two years younger and will continue to be under my retiree benefits insurance plan and we currently share an HSA account through my work/employer contributions.  Based on my effective date of 9/1/25 how do I calculate HSA contribution limitations for the year 2025?  Should we open a separate HSA account in her name for the remainder of 2025 and for 2026-2027? 

[BillM223]

Yes, have your spouse open an HSA in her own name.

Second, I assume that prior to September 2025, that you/she will switch to Self-only HDHP coverage (I am also assuming that you two have Family HDHP coverage now, right?).

Your (y'alls) HSA contribution limit for 2025 using the assumptions above is equal to:

A. Your limit: (8,855 times 8 divided by 12) + (1,000 times 4 divided by 12) 

B. Your spouse's limit: (4,300 times 4 divided by 12) + (1,000 times 4 divided by 12 - ONLY IF your spouse is 55+) plus whatever you don't use in A. 

NOTE: the part of the limit that you don't use will probably by automatically diverted to your spouse by TurboTax (The coverage under the Family Plan is shared by the two spouses).

Come back if you have any questions.

P.S. You do NOT have to close your HSA at age 65 (or whenever you go on Medicare), you just can't contribute to your HSA any more at that date. You can continue to pay out of your HSA for medical expenses until the account is exhausted.