HSA in Retirement: Distributions, Medicare, and What Qualifies 

Understanding HSA retirement distribution rules is where the real planning work begins. Years of contributions and investment growth have built the balance — now the question shifts from how to fund the HSA to how to use it well.

The HSA in retirement operates under a different set of rules than during the working years. The contribution window closes once Medicare begins, but the account itself doesn’t change character. It still holds tax-free dollars for qualified medical expenses and functions as an ordinary income account for everything else after age 65. Which expenses qualify, what Medicare premiums are and aren’t covered, and how to sequence HSA withdrawals against other retirement income sources — that’s where the planning value sits.

What Changes at 65 

Before age 65, HSA distributions for non-medical expenses are included in gross income and subject to a 20% additional tax. That penalty disappears after age 65. Non-medical distributions after 65 are still included in income, taxed the same way a traditional IRA distribution would be, but the 20% penalty no longer applies. 

For medical expenses, nothing changes. Qualified medical expense distributions remain entirely tax-free regardless of age. The advantage of reaching 65 is that the HSA becomes more flexible, not less. Medical expenses get the same tax-free treatment, and non-medical distributions are no longer penalized, just taxed as ordinary income. 

The account gets more useful, not less, as retirement begins. 

Which Medicare Premiums Qualify? 

Per IRS Publication 969, HSA funds can be used tax-free after age 65 to pay premiums for Medicare Part B, Medicare Part D, and Medicare Advantage (Part C). These are qualified medical expenses for HSA purposes once the account holder reaches 65. 

Medigap supplemental policy premiums are the exception. 

Premiums for Medicare supplemental policies, commonly called Medigap, are not qualified medical expenses regardless of age, per Publication 969. That distinction matters for clients who carry supplemental coverage to manage Medicare cost-sharing. The HSA can cover the underlying Medicare premiums but not the supplemental coverage layered on top. 

Long-term care insurance premiums are also qualified, subject to age-based limits that adjust annually. The limits are indexed and published in the Instructions for Schedule A each year. 

Expenses Most Often Overlooked in Retirement 

Medicare does not cover everything, and the gaps create qualified HSA expense territory that clients often underutilize. Dental care is a significant one. Traditional Medicare provides limited dental coverage, but dental procedures (including dentures, extractions, and implants) are qualified medical expenses under IRS Publication 502, which governs what qualifies for HSA purposes. Hearing aids and related costs are another category that Medicare doesn’t cover but HSAs can fund tax-free. 

Vision expenses including eyeglasses, contact lenses, and laser eye surgery qualify. Costs for in-home care, certain medical equipment, and prescription drugs not covered by insurance are also eligible. Long-term care facility expenses and home health aide costs for a chronically ill individual qualify under specific conditions defined in Publication 502. 

The broader principle: qualified medical expenses are defined by IRC section 213(d) and Publication 502, not by what insurance covers. Many expenses that fall outside Medicare coverage remain fully HSA-eligible. 

The Deferred Reimbursement Strategy in Practice 

IRS Publication 969 imposes no deadline for taking HSA distributions to reimburse qualified medical expenses, provided the expense was incurred after the HSA was established and the account holder maintains adequate records. A client who paid out of pocket for qualified medical expenses in 2018 can reimburse those expenses from the HSA in 2026, or in 2031. 

For clients who accumulated HSA balances over a career while paying medical costs out of pocket, this creates a pool of documented, reimbursable expenses that can be drawn tax-free in retirement at any time. The strategy functions as a reserve: contributions went in pre-tax, grew tax-free, and can come out tax-free against expenses that were already paid. The receipts are the mechanism. Without documentation, the reimbursement loses its tax-free status. 

Recordkeeping is the entire discipline. 

HSA Retirement Distribution Rules and Sequencing With Other Income 

HSA distributions for qualified medical expenses are tax-free, which makes them particularly valuable when other retirement income is pushing taxable income toward brackets that affect Medicare Income-Related Monthly Adjustment Amounts (IRMAA). IRMAA surcharges apply to Medicare Part B and Part D premiums based on Modified Adjusted Gross Income from two years prior. HSA distributions for qualified expenses are not included in MAGI and do not affect IRMAA calculations. 

That interaction creates a sequencing consideration. Covering medical expenses from the HSA rather than from taxable accounts or traditional IRA distributions keeps those expenses off the MAGI calculation. For clients near IRMAA thresholds, that distinction can be meaningful. Conversely, non-medical HSA distributions are included in income and do count toward MAGI. 

The practical implication: for retirees with meaningful HSA balances and significant qualified medical expenses, prioritizing HSA distributions for medical costs and drawing other retirement accounts for non-medical expenses can reduce lifetime tax exposure. The sequencing question doesn’t have a universal answer, but the HSA’s MAGI treatment makes it worth analyzing as part of a broader retirement income plan. 

Source: IRS Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans (2025), irs.gov/publications/p969; IRS Publication 502, Medical and Dental Expenses, irs.gov/publications/p502.