The HSA Wealth Engine.
Most people use an HSA as a checking account for doctors. The savvy use it as a tax-free wealth compounding machine.
HSA "Triple Threat" Auditor
Model the wealth-building power of the most tax-advantaged account in the US.
1. Contribution Strategy
Input your expected annual contribution. In 2026, the individual limit is approximately $4,150 (hypothetical estimation).
Total Federal + State marginal rate
2. Time Horizon & Gains
How many years will this money compound before you start using it for retirement health costs?
Estimated HSA Terminal Value
$0
Includes $0 in total tax savings.
HSA vs. Standard Brokerage Account
Leaving this in an HSA instead of a brokerage generates an extra $0 for retirement healthcare.
The "Triple Threat" Advantages
The HSA is the only account in the U.S. tax code that offers three distinct breaks simultaneously. No other account—not even the Roth IRA—can claim this:
- 1
Tax-Deductible Contributions Every dollar you put in lowers your taxable income TODAY.
- 2
Tax-Free Growth You pay $0 in capital gains or dividend taxes while your money grows.
- 3
Tax-Free Withdrawals If used for qualified medical expenses, distributions are 100% tax-free.
The Secret IRA Hack
After age 65, the HSA effectively morphs into a Traditional IRA. You can withdraw funds for any purpose without penalty—you'll just owe ordinary income tax if the withdrawal isn't for medical costs. However, healthcare cost projections for retirees are staggering; your HSA is the most efficient way to pay them.
Pro Strategy
"Pay for current medical costs out-of-pocket, save the receipts, and let your HSA compound for decades. You can reimburse yourself tax-free 20 years from now using those old receipts."
Open a Zero-Fee HSA
Fidelity offers one of the only HSAs with zero account fees, zero minimums, and full access to their entire investment universe—including zero-fee index funds. It is the gold standard for long-term HSA investors.
Partner: Fidelity
Disclaimer: This tool is for educational and illustrative purposes only. Calculations are based on hypothetical rates of return and current IRS regulations for high-deductible health plans (HDHPs) which may change. HSA eligibility depends on your health insurance plan. This is not tax or legal advice. Always consult with a qualified tax professional before maximizing retirement contributions.