At 65 a Health Savings Account Turns Into a Second IRA. Withdrawals for Anything Are Taxed Like a 401(k), With No Penalty and No Required Distributions, Ever

A health savings account, or HSA, is a tax-advantaged account matched with a high-deductible health plan. Once its owner turns 65, it works like a traditional IRA for any spending, while keeping its tax break on medical costs. That combination is unusual among retirement accounts.

What Changes on the 65th Birthday

Before that birthday, non-medical withdrawals are hit with income tax plus an additional 20% tax. After 65, non-medical withdrawals are still subject to income tax but are no longer subject to the 20% penalty. Medical withdrawals remain completely tax-free at any age.

Three Advantages a 401(k) Can’t Match

HSAs have no required minimum distributions during the owner’s lifetime, so the balance can grow untouched indefinitely. Traditional IRAs and 401(k)s force withdrawals starting at age 73. Employer HSA contributions, including amounts the employee elected to contribute through a cafeteria plan, generally aren’t subject to employment taxes. A 401(k) deferral skips income tax but still pays Social Security and Medicare tax.

The third edge is control over taxable income. Up to 50% of Social Security benefits become taxable once provisional income tops $25,000 for single filers or $32,000 for joint filers, and up to 85% can be taxed at higher incomes. Provisional income is about half of a person’s benefits plus their other income.

Medicare’s income surcharge, known as IRMAA, works the same way. For 2026, Part B surcharges start above $109,000 for individual filers and $218,000 for joint filers, and they’re based on income from two years prior. Tax-free medical withdrawals don’t count toward either test, but every dollar taken from a traditional IRA does.

Old Receipts Can Be Reimbursed Decades Later

There is no time limit to reimburse a qualified medical expense from an HSA, as long as the expense was incurred after the HSA was established and hasn’t been reimbursed by insurance or deducted on a tax return. For the estate, however, the executor has one year from the date of death to use HSA funds to reimburse the estate or medical providers. Savers can pay medical bills from checking, leave the HSA invested, and withdraw a matching amount tax-free years later from a growing balance.

If questioned, supporting those reimbursements requires detailed receipts, explanation-of-benefits statements, and proof of payment kept for decades.

Medicare Enrollment Shuts Off Contributions

For 2026, the contribution limit is $4,400 for self-only coverage and $8,750 for family coverage, plus a $1,000 catch-up for savers 55 and older. Enrolling in any part of Medicare, including Part A, ends your eligibility to contribute. In the enrollment year, the limit is prorated by months of eligibility.

When Part A coverage reaches back six months, contributions made during that window become excess contributions. Withdraw them by the tax return due date to avoid a 6% excise tax, so contributions made in the six months before enrollment carry this risk.

Medical Spending in Retirement Covers More Than Doctor Bills

For account owners 65 or older, Medicare and other health care coverage premiums are qualified expenses, except premiums for a Medicare supplemental policy, such as Medigap. The standard 2026 Part B premium of $202.90 a month is tax-deductible.

Long-term care insurance premiums count too, but the deductible amount is subject to age-based limits and adjusts annually. Qualified long-term care services also count as medical expenses, and late-life costs often run highest here.

Heirs Who Aren’t a Spouse Face a One-Year Tax Bill

When a surviving spouse is the named beneficiary, the spouse becomes the HSA owner and keeps all tax advantages. For anyone else, the account ceases being an HSA. Its value on the date of death becomes taxable income to the beneficiary in the year the owner died, even if withdrawn later.

That reverses the usual estate planning logic. An account built up over decades and left to a child can trigger a very large one-year tax bill, possibly during the child’s peak earning years. When the heir isn’t a spouse, spending the HSA first reduces the balance exposed to that one-year tax.

Two Moves That Protect the Account

Naming a spouse on the beneficiary form keeps the account intact where possible. Keep a receipt file with digital copies of every eligible bill you pay out of pocket to build a pool of future tax-free withdrawals.

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