HSA Tax Savings Calculator

The HSA Triple Tax Advantage

An HSA (Health Savings Account) is the most tax-advantaged account in the entire US tax code: (1) Tax deduction on contributions (above-the-line, no itemization required). (2) Tax-free growth — investments inside HSA grow tax-free, no annual tax on interest/dividends/gains. (3) Tax-free withdrawals for qualified medical expenses, anytime. After age 65, you can also withdraw for non-medical use, taxed as ordinary income like a Traditional IRA (no 20% penalty after 65).

If you have access to an HSA-compatible high-deductible health plan (HDHP), contributing the maximum every year is one of the single best wealth-building moves available. Source: IRS Publication 969, Rev. Proc. 2024-40. Last updated: May 2026.

2026 HSA Contribution Limits

The 55+ catch-up is per HSA holder — couples both 55+ can each have a $1,000 catch-up in separate HSAs (you cannot have a joint HSA).

HDHP Eligibility Requirements 2026

To contribute to an HSA, you must be enrolled in a qualifying HDHP: (1) Annual deductible at least $1,650 self-only / $3,300 family. (2) Out-of-pocket max no more than $8,300 self-only / $16,600 family. (3) No other health coverage (you can't have a non-HDHP secondary plan, FSA, or Medicare). (4) Not claimed as a dependent. Verify your plan meets these — many 'high deductible' employer plans don't meet HSA-eligibility criteria.

HSA as a Stealth Retirement Account

The optimal strategy for high earners: contribute the HSA max annually, INVEST the balance in low-cost index funds (most HSA providers offer Vanguard or Fidelity index funds), and PAY medical expenses out of pocket while keeping receipts. Decades later, you can reimburse yourself for all those accumulated medical expenses tax-free — having let the HSA grow tax-free for 30+ years. Effectively turns the HSA into a triple-tax-advantaged retirement account.