Most people treat their HSA like a checking account. See what it could become if you invested it instead.
An HSA (Health Savings Account) is the only US account with three tax breaks at once: tax-deductible contributions, tax-free growth, and tax-free withdrawals for medical expenses. Available only if you have a qualifying high-deductible health plan (HDHP).
2026 IRS contribution limits: $4,300 self-only coverage, $8,550 family coverage, plus a $1,000 catch-up if you're 55+.
| Coverage | 2026 Limit | Catch-up (55+) |
|---|---|---|
| Self-only HDHP | $4,300 | +$1,000 |
| Family HDHP | $8,550 | +$1,000 |
You must be enrolled in an IRS-qualifying High-Deductible Health Plan (HDHP) to contribute. The catch-up applies per spouse if both are 55+ and each has their own HSA.
Methodology: Future value of annuity formula with monthly compounding, comparing $0% growth (cash) vs your assumed investment return. Immediate tax savings = contribution × marginal tax rate, reflecting the pre-tax/deductible nature of HSA contributions. Does not model HDHP premium differences vs traditional plans.