A Health Savings Account (HSA) is a tax-advantaged account that lets you save money for medical expenses. It is available only to people enrolled in a High-Deductible Health Plan (HDHP). The HSA offers a unique triple tax advantage: contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free.
HSA Contribution Limits for 2026
For 2026, the IRS has set HSA contribution limits at:
- Self-only coverage: $4,300
- Family coverage: $8,550
- Catch-up contribution (age 55+): Additional $1,000
Contributions can be made by you, your employer, or both — but the total cannot exceed the annual limit. Employer contributions count toward your limit.
Who Qualifies for an HSA?
To contribute to an HSA, you must:
- Be enrolled in a High-Deductible Health Plan (HDHP)
- Not be covered by any other health insurance that is not an HDHP (with limited exceptions like accident-only or dental/vision coverage)
- Not be enrolled in Medicare
- Not be claimed as a dependent on someone else’s tax return
In 2026, an HDHP is defined as a plan with a minimum deductible of $1,650 (self-only) or $3,300 (family) and maximum out-of-pocket expenses of $8,300 (self-only) or $16,600 (family).
The Triple Tax Advantage Explained
The HSA is the only account in the U.S. tax code with a triple tax benefit:
- Contributions are pre-tax (or tax-deductible). If you contribute through payroll, contributions come out before income tax, FICA taxes, and state taxes. If you contribute directly to an HSA (not through payroll), you get an above-the-line deduction on your federal return — no need to itemize.
- Investment growth is tax-free. HSA funds can be invested in mutual funds, ETFs, and other options (depending on your HSA provider). The growth accumulates tax-free.
- Withdrawals for qualified medical expenses are tax-free. Use the money for eligible healthcare costs at any time — now or decades from now — without paying a cent in taxes.
What Counts as a Qualified Medical Expense?
The IRS list of qualified HSA expenses is broad. It includes:
- Deductibles, copayments, and coinsurance
- Prescription medications
- Dental care (fillings, crowns, braces)
- Vision care (exams, glasses, contacts)
- Mental health services
- Chiropractic care
- Medical equipment (crutches, blood pressure monitors)
- Menstrual care products
- Over-the-counter medications (expanded after 2020)
Premiums for health insurance generally do not qualify (with exceptions for COBRA continuation coverage, coverage while receiving unemployment benefits, and Medicare premiums after age 65).
HSA vs. FSA: Key Differences
Flexible Spending Accounts (FSAs) are often confused with HSAs. The key differences:
- FSA: Use-it-or-lose-it (funds generally expire at year end with limited carryover). Available with any health plan. Employer owns the account.
- HSA: Funds roll over indefinitely. Requires an HDHP. You own the account and take it with you if you change jobs. Can invest funds for long-term growth.
For most people with a choice, the HSA is more valuable due to the rollover feature and investment option.
Using an HSA as a Retirement Account
Here is a strategy many financial advisors recommend: if you can afford to pay medical expenses out of pocket in the short term, contribute the maximum to your HSA every year and invest the funds in low-cost index funds. Save your receipts for all out-of-pocket medical expenses going back to when you opened the HSA.
In retirement, you can withdraw HSA funds to reimburse yourself for those old qualified medical expenses — with no time limit on when you submit. This effectively turns the HSA into another tax-free source of retirement income.
After age 65, HSA funds can also be withdrawn for any non-medical purpose and are simply taxed as ordinary income (like a traditional IRA). This makes the HSA a true retirement account with the added benefit of tax-free medical withdrawals.
How to Open an HSA
If your employer offers an HSA alongside an HDHP, you can open one through your employer’s benefits portal. You can also open an HSA directly with providers like Fidelity, Lively, HealthEquity, or HSA Bank if you prefer different investment options or lower fees.
Compare HSA providers on monthly fees, investment minimums, and available investment funds. Some providers charge $2-4 per month in maintenance fees, which erodes your balance over time. Fidelity’s HSA has no fees and no investment minimum — it is widely considered the top option for people who want to invest their HSA funds.
Bottom Line
An HSA is one of the most tax-efficient accounts available. The triple tax advantage — deductible contributions, tax-free growth, and tax-free qualified withdrawals — beats every other savings account type. If you have access to an HDHP and can handle a higher deductible, maxing your HSA each year and investing the funds is a powerful financial planning move.