HSA Calculator: Tax-Free Healthcare Savings and Growth
See your annual tax saving and how an HSA grows when you invest what you do not spend. 2026 limits built in. Free and private.
Last updated: June 2026
Triple tax advantage: contributions are tax-deductible, growth is tax-free, and withdrawals for medical costs are tax-free. After 65, withdrawals for any purpose are taxed as income, like an IRA. Requires a qualifying HDHP.
2026 max: $4,400 self / $8,750 family (+$1,000 at 55+).
Your HSA
- Balance after the period
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The most tax-efficient account in America
The HSA is the only account that is never taxed at any stage when used for healthcare. This HSA calculator shows the immediate tax saving from your contribution and, if you invest the part you do not spend on medical bills, how large the balance can grow over time.
The immediate win is the deduction: a $8,750 family contribution at a 24% marginal rate saves about $2,100 in tax this year. The long-term win is compounding. If you pay routine medical costs out of pocket and let the HSA ride, the invested balance grows tax-free and can become a serious healthcare fund by retirement, when medical spending tends to rise.
The catch is eligibility: you must be on a qualifying high-deductible health plan and have no disqualifying coverage. After 65 the HSA also works like a Traditional IRA for non-medical withdrawals, taxed but penalty-free. Pair this with the US paycheck calculator, the 401k calculator and the budget calculator to plan your full picture.
Disclaimer: HSA eligibility requires a qualifying HDHP; verify with your employer or insurer. Projections are estimates and not financial advice. Tax savings depend on your situation. Full disclaimer.
How it works
Three quick steps — no account, nothing uploaded to a server.
Choose coverage
Pick self-only or family and enter your age.
Add contribution and costs
Enter your annual contribution, expected medical spend and tax rate.
See the growth
Get your tax saving and the balance if you invest the remainder.
Rates and rules on this page are verified against IRS Publication 969. Last checked July 2026.
FAQ
Frequently asked questions
What is the HSA contribution limit for 2026?
For 2026 the HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. If you are 55 or older you can add a $1,000 catch-up contribution. You must be enrolled in a qualifying high-deductible health plan (HDHP) to contribute.
What is the triple tax advantage of an HSA?
An HSA is the only account with three tax breaks at once. Contributions are tax-deductible, the money grows tax-free, and withdrawals for qualified medical expenses are tax-free. No other account gives you all three, which is why many people treat the HSA as a stealth retirement account.
What happens to my HSA after age 65?
After 65 you can withdraw from your HSA for any reason. Withdrawals for non-medical expenses are taxed as ordinary income, just like a Traditional IRA, but with no penalty. Withdrawals for qualified medical costs remain completely tax-free at any age, which makes the HSA powerful for healthcare in retirement.
What qualifies as a high-deductible health plan?
For 2026, an HDHP has a minimum deductible of $1,700 for self-only or $3,400 for family coverage, and an out-of-pocket maximum no higher than $8,500 self-only or $17,000 family. You must be covered by an HDHP and have no other disqualifying coverage to contribute to an HSA.
Should I invest my HSA or keep it as cash?
If you can pay current medical costs from your regular budget, investing the HSA balance lets it compound tax-free for decades, which can turn it into a large healthcare fund by retirement. If you need the money soon for medical bills, keeping it liquid makes more sense. This calculator lets you model investing the portion you do not spend.
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