HSA strategy: the triple-tax-advantaged account

An HSA is the only account in the US tax code with a triple tax advantage. If you have access to one, it can outperform a 401(k) and Roth IRA on after-tax retirement value — yet it is the most underused tax-advantaged account in the country.

Eligibility

You must be enrolled in a High-Deductible Health Plan (HDHP), have no other health coverage (including Medicare), and not be claimed as a dependent. Most HDHPs are clearly labeled as HSA-eligible by employers and insurers.

2026 contribution limits

$4,300 for self-only coverage, $8,550 for family coverage. Add $1,000 catch-up if age 55+. Employer contributions count toward the limit. Funds roll over yearly — no use-it-or-lose-it.

The retirement-account play

The standard HSA mistake: using it as a checking account for medical bills. The smart move: pay current medical expenses from cash, save every receipt, and let the HSA grow invested for decades. After 65, you can withdraw HSA funds for any reason (taxed as ordinary income — like a traditional IRA), or use saved receipts to take tax-free withdrawals decades later.

Investing inside an HSA

Most HSA providers default to a low-yield cash account. Move funds into low-cost index funds via a self-directed brokerage option (Fidelity, Lively, HealthEquity). Treat the HSA exactly like a Roth IRA — long-horizon, growth-focused, never touched until age 65+ unless absolutely necessary.

After 65

At age 65 you can withdraw HSA funds for any reason — taxed as ordinary income, similar to a traditional IRA. Medical withdrawals remain tax-free. Many retirees use the HSA for Medicare premiums (qualified expense, fully tax-free).