Are HSA Contributions Tax Deductible?

The triple tax advantage

HSAs are unique in the tax code — they offer three tax benefits:

1. Tax-deductible contributions: Reduces your taxable income (above-the-line, no itemizing needed)
2. Tax-free growth: Interest, dividends, and investment gains inside the HSA are never taxed
3. Tax-free withdrawals: Money taken out for qualified medical expenses is completely tax-free

No other account — not a 401(k), not a Roth IRA — gets all three benefits. A 401(k) is tax-deductible going in but taxed coming out. A Roth IRA is tax-free coming out but not deductible going in. An HSA is both.

2026 contribution limits

• Individual coverage: $4,300
• Family coverage: $8,550
• Catch-up (age 55+): Additional $1,000

If your employer contributes to your HSA, their contributions count toward these limits.

Eligibility requirements

You must meet all of these:

• Enrolled in a high-deductible health plan (HDHP). For 2026: minimum deductible of $1,650 (individual) or $3,300 (family)
• No other health coverage that's not an HDHP (some exceptions for dental, vision, and specific-disease coverage)
• Not enrolled in Medicare
• Not claimed as a dependent on someone else's return

HSA as a retirement account

Here's the hack: you don't have to use your HSA funds now. You can pay medical expenses out of pocket, let the HSA grow for decades, and withdraw tax-free in retirement. After age 65, you can withdraw for any purpose (not just medical) — you'll pay income tax but no penalty, just like a traditional IRA.

This makes the HSA a stealth retirement account with better tax treatment than a 401(k).