Finance
HSA Calculator
Project Health Savings Account growth, triple-tax-advantage savings, and retirement value with 2026 IRS limits and HDHP rules.
Your HSA plan
Projected HSA balance in 30 years
$343,438
2026 contribution limit: $4,400
Triple-tax-advantage savings
On contributions
$39,600
On growth
$63,431
On medical withdrawals
$0
Total tax saved: $103,031
Total contributed
$132,000
Investment growth
$211,438
Medical spending withdrawn
$0
vs. taxable brokerage
$186,130
HSA edge over taxable savings: $157,308
After-tax value at age 65 for non-medical use: $240,406
Frequently Asked Questions about the HSA Calculator
What is the HSA triple-tax advantage?
An HSA gets three tax breaks. Contributions are deductible from taxable income; a $4,400 contribution at 30% saves $1,320 up front. Investment growth is never taxed. Withdrawals for qualified medical expenses come out completely tax-free. No other account offers all three.
What are the 2026 HSA contribution limits?
Self-only HDHP limit is $4,400 and family HDHP limit is $8,750 (IRS Rev. Proc. 2025-19). Accountholders age 55 and older can add a $1,000 catch-up. The catch-up is per eligible accountholder, so two spouses both 55+ each need their own HSA for two catch-ups.
Do I need a High-Deductible Health Plan (HDHP) to contribute?
Yes. You must be covered by an IRS-qualifying HDHP, have no disqualifying coverage (general-purpose FSA, Medicare, or a spouse's non-HDHP that covers you), and not be claimed as a dependent. For 2026 an HDHP needs a minimum deductible of $1,700 self-only / $3,400 family.
Can you walk through an example calculation?
A 35-year-old with self-only coverage contributes the full $4,400 each year for 30 years at a 6% return, starting from $0. Projected balance at age 65 is about $347,900. At 30% combined marginal rate, contribution tax savings alone total about $39,600. A taxable brokerage would grow to only about $186,000.
What happens to my HSA after age 65?
At age 65 the HSA stops behaving like a strict medical account. Qualified medical withdrawals stay tax-free. Non-medical withdrawals no longer trigger the 20% penalty; they are taxed as ordinary income, like a traditional IRA. The HSA then functions like a tax-deferred retirement account on top of its medical benefits.