A Health Savings Account (HSA) is one of the most tax-advantaged accounts available, offering a unique triple tax benefit: tax-deductible contributions, tax-free investment growth, and tax-free withdrawals for qualified medical expenses. Use this free HSA calculator to quantify your annual tax savings, project your HSA balance over time, and compare HSA investing to a regular brokerage account.
Your HSA Details
Your HSA Triple Tax Advantage
HSA vs Regular Brokerage Account
After Age 65
After 65, your HSA works like a traditional IRA for non-medical withdrawals — you pay income tax but no 20% penalty. Medical withdrawals remain completely tax-free at any age. This makes HSAs a powerful supplemental retirement account, especially if you pay medical expenses out-of-pocket now and let your HSA balance grow tax-free for decades.
Projected HSA Growth
Year-by-Year Breakdown
| Year | Contribution | Medical Spend | Growth | Tax Saved | Balance |
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How to Use This HSA Calculator
A Health Savings Account is uniquely powerful because it offers three tax advantages that no other account matches: tax-deductible contributions, tax-free investment growth, and tax-free withdrawals for medical expenses. This HSA calculator helps you quantify those savings and project your account balance over time, so you can make informed decisions about how much to contribute and whether to spend or invest your HSA funds.
Step 1: Select Your Coverage and Contribution
Choose your HDHP coverage type (self-only or family) and enter your planned annual contribution. The calculator shows the 2026 IRS maximum: $4,400 for individual coverage or $8,750 for family coverage. If you are 55 or older, you qualify for an additional $1,000 catch-up contribution. Contributing the maximum lets you take full advantage of the HSA tax benefits.
Step 2: Enter Your Tax Information
Select your marginal federal tax bracket and enter your state income tax rate. States with no income tax include Texas, Florida, Washington, Nevada, Wyoming, Alaska, New Hampshire, South Dakota, and Tennessee. The calculator uses these rates to compute your tax savings. HSA contributions also avoid FICA taxes (7.65%) if made through payroll deduction, which this calculator includes.
Step 3: Configure Investment and Spending
Enter your current HSA balance and expected investment return. If you plan to pay medical expenses from your HSA, enter the annual amount — this reduces the investable balance. Many HSA strategists recommend paying medical expenses out-of-pocket and letting the HSA balance grow tax-free, treating it as a supplemental retirement account. Set medical spending to $0 to see the maximum growth potential.
Step 4: Review Your Tax Savings
The results show your annual tax savings broken down by federal, state, and FICA taxes. The triple tax advantage summary quantifies the total benefit. The HSA vs brokerage comparison shows exactly how much more you keep by investing through an HSA instead of a taxable brokerage account, accounting for the capital gains tax you avoid.
Step 5: Plan for the Long Term
Review the projected balance at age 65 and the year-by-year growth chart. The medical expense coverage metric shows how many years of healthcare costs your HSA can fund. Remember, after age 65 your HSA works like a traditional IRA for non-medical withdrawals — you will pay income tax but no penalty. All calculations run privately in your browser and your financial data is never sent or stored anywhere.
FAQ
Is this HSA calculator free?
Yes, this HSA calculator is completely free with no signup, no limits, and no ads. Calculate your tax savings, project your HSA balance, and compare HSA vs brokerage accounts as many times as you like. Everything runs in your browser.
Is my financial data safe?
Absolutely. All calculations run entirely in your browser using JavaScript. Your income, tax rates, and HSA balance are never sent to any server or stored in any database. You can verify this by disconnecting from the internet — the calculator continues to work.
What is the HSA triple tax advantage?
HSAs offer three tax benefits: contributions are tax-deductible (reducing your taxable income), investment growth is tax-free (no capital gains tax), and withdrawals for qualified medical expenses are tax-free. No other account offers all three benefits, making HSAs one of the most tax-efficient savings vehicles available.
What are the 2026 HSA contribution limits?
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 contribute an additional $1,000 catch-up contribution, bringing the limits to $5,400 (self-only) or $9,750 (family).
Can I invest my HSA funds?
Yes, most HSA providers allow you to invest your balance in mutual funds, ETFs, and other securities once you exceed a minimum cash balance (typically $1,000-$2,000). Invested HSA funds grow tax-free, which is one of the three tax advantages. This calculator projects your balance growth based on your expected investment return.
What happens to my HSA after age 65?
After age 65, your HSA works like a traditional IRA for non-medical withdrawals — you pay income tax but no penalty. Medical withdrawals remain completely tax-free at any age. This makes HSAs a powerful supplemental retirement account, especially if you can let your balance grow for years.
How much can I save in taxes with an HSA?
Your tax savings depend on your contribution amount and tax rates. A family contributing the full $8,750 in the 24% federal bracket with 5% state tax and 7.65% FICA saves approximately $3,206 annually. Over 20 years, that is over $64,000 in tax savings alone, not counting investment growth.