The age-55 HSA catch-up contribution
Determine when catch-up eligibility begins, prorate partial years, and keep each spouse's catch-up in that spouse's HSA.
An eligible individual age 55 or older at year-end may add up to $1,000. The amount is subject to monthly eligibility, and each spouse's catch-up belongs in that spouse's own HSA.
Age and coverage are separate tests
Turning 55 during the year can satisfy the age condition, but Medicare or disqualifying coverage can reduce eligible months. Use the Form 8889 worksheet if the individual was not eligible all year.
Spouses need individual accounts
The family base limit can be allocated between spouses, but one spouse cannot deposit the other's catch-up. If both qualify, each needs an HSA in their own name for their catch-up.
Example and common mistake
Both spouses are over 55 and share family coverage, but only one has an HSA. The household cannot put two catch-ups in that account. Treating the catch-up as part of the shared family amount is the mistake.
Assign the catch-up to the right owner
Determine whether the individual reaches age 55 by the end of the tax year and remains HSA-eligible for the relevant months. Apply monthly proration when eligibility is partial, unless the last-month rule is intentionally used. The additional amount belongs to that individual's HSA and is not a general increase to a couple's shared family limit.
For two eligible spouses age 55 or older, maintain separate account records and contribution schedules. Coordinate employer deposits and ordinary family-limit allocations first, then place each catch-up in its owner's account. Medicare enrollment can shorten one spouse's eligible period without changing the other's eligibility.
Questions to resolve
- Did the owner reach age 55 by year end?
- Which eligible months support the catch-up amount?
- Was each spouse's additional contribution deposited into that spouse's own HSA?
Federal authority record
- U.S. House Office of the Law Revision Counsel: 26 U.S.C. section 223 - Health savings accounts
HSA eligibility, contribution limits, qualified distributions, and beneficiary rules - IRS: Publication 969 — HSAs and other tax-favored health plans
Monthly eligibility, last-month rule, spouses, Medicare, and excess contributions - IRS: Instructions for Form 8889
HSA contribution, deduction, distribution, excess, and filing rules