HSA Calculator | Tax Savings, Contribution Limits & Investment Growth
Maximize your Health Savings Account with detailed tax savings across federal, state, and FICA contributions. Covers 2024–2025 IRS limits, age-55 catch-up amounts, investment growth projection, and a side-by-side comparison of spending HSA funds now versus investing for retirement.
HSA Triple Tax Advantage Explained
The Health Savings Account is unique in offering three tax benefits simultaneously: (1) contributions are pre-tax, reducing your taxable income; (2) investment growth inside the account is tax-free; (3) qualified medical withdrawals are also tax-free. No other account provides all three benefits.
2025 HSA Contribution Limits
| Coverage Type | 2024 Limit | 2025 Limit |
|---|---|---|
| Self-Only HDHP | $4,150 | $4,300 |
| Family HDHP | $8,300 | $8,550 |
| Catch-Up (age 55+) | +$1,000 | +$1,000 |
HSA as a Retirement Account
After age 65, HSA funds can be withdrawn for any purpose (not just medical) and taxed as ordinary income — exactly like a traditional IRA. But for medical expenses, withdrawals remain tax-free forever. This makes the HSA the most tax-efficient account available if you can invest the contributions and pay current medical expenses out of pocket.
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