The HSA stealth IRA strategy leverages the Health Savings Account's unique triple tax advantage: deductible contributions, tax-free growth, and tax-free medical withdrawals. By paying current medical expenses out-of-pocket and letting the HSA grow invested for decades, you create a powerful retirement account that outperforms both a Roth IRA and Traditional IRA for healthcare-related spending. This simulator shows the 30-year value of that strategy in real dollars.
Your HSA Parameters
2026 limits: $4,300 individual, $8,550 family, +$1,000 if 55+
Strategy 1: pay this out-of-pocket, keep receipts. Strategy 2: use HSA.
HSA Growth: Stealth IRA vs Spend on Medical
Year-by-Year HSA Projection
| Year / Age | Contribution | Medical Exp. | Stealth IRA |
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How to Use the HSA Stealth IRA Simulator
The HSA stealth IRA is the most tax-advantaged retirement vehicle most people don't use correctly. The triple tax advantage — deductible contributions, tax-free growth, tax-free medical withdrawals — makes it theoretically better than both a Roth IRA and a 401(k) for the portion of your retirement spending that goes to healthcare. The key is treating it as a long-term investment account, not a short-term medical expense fund.
Step 1: Set Your Annual Contributions
For 2026, the IRS limits are $4,300 for individual HDHP coverage and $8,550 for family coverage, with a $1,000 catch-up if you're 55 or older. If your employer contributes to your HSA (many do — $500-$1,500 is common), enter that separately. Employer contributions don't count against your personal limit and are also pre-tax. The simulator shows the tax value of contributions at your marginal rate on the "Tax Saved on Contributions" stat.
Step 2: Set Your Annual Medical Expenses
This is the crux of the strategy. Strategy 1 (Stealth IRA) assumes you pay all medical expenses from your regular checking account — not your HSA. Your HSA contributions grow uninhibited for decades. Strategy 2 (Spend on Medical) uses HSA funds to pay each year's medical expenses, leaving the remainder invested. The simulator compares both strategies side-by-side. The difference between them is the "Stealth Advantage" shown in the stats section.
Step 3: Keep Your Medical Receipts
The stealth IRA strategy works because there's no time limit on HSA reimbursements. If you pay $1,500 in dental work in 2026 out-of-pocket, you can reimburse yourself from your HSA any time in the future — even in 2046 at retirement. Keep digital copies of all medical receipts (Explanation of Benefits documents, dental bills, pharmacy receipts) in a folder. In retirement, you submit these receipts and withdraw tax-free cash, even though the original expenses were 20 years ago.
What Happens to HSA Funds After Age 65
After 65, you can withdraw HSA funds for any purpose. Medical withdrawals remain tax-free. Non-medical withdrawals are taxed as ordinary income — just like a Traditional IRA. This means the HSA is strictly better than a Traditional IRA for all medical spending (no tax vs income tax), and equal to a Traditional IRA for non-medical spending. Combined with Roth conversions and Social Security optimization, a fully invested HSA can be a cornerstone of a tax-efficient retirement.
FAQ
What is the HSA stealth IRA strategy?
The HSA stealth IRA strategy treats your Health Savings Account as a third retirement account with triple tax advantages: contributions are pre-tax (deductible), growth is tax-free, and withdrawals for medical expenses are tax-free. The key insight is that there's no time limit on reimbursing medical expenses — save your receipts for years of out-of-pocket medical costs, invest your HSA fully, and reimburse yourself decades later at retirement, effectively converting the account to tax-free cash.
What are the 2026 HSA contribution limits?
For 2026: individual HDHP coverage is $4,300/year, family HDHP coverage is $8,550/year, plus a $1,000 catch-up contribution if you're 55 or older. HSA contributions are tax-deductible whether or not you itemize, unlike most deductions. Employer HSA contributions (often $500-$1,500/year) don't count toward your limit and are also tax-free.
What happens to my HSA after age 65?
After age 65, HSA funds can be withdrawn for any reason, not just medical expenses. Non-medical withdrawals are taxed as ordinary income — exactly like a Traditional IRA. For medical expenses (and Medicare premiums), withdrawals remain tax-free forever. This makes the HSA even better than a Traditional IRA for medical costs, since Traditional IRA withdrawals for medical expenses are taxable. The key is keeping receipts for all out-of-pocket medical costs incurred while the HSA was open.
Can I invest my HSA in stocks instead of keeping it in a savings account?
Yes — most HSA providers allow investing in stocks, ETFs, and index funds once your balance exceeds a threshold (typically $1,000-$2,000). Fidelity HSA has no minimum and offers zero-expense-ratio index funds. Lively and HSA Bank also support investment options. The key is choosing a provider with good investment options, since many employer-selected HSA plans have limited, high-fee funds.
Is this HSA stealth IRA simulator free?
Yes, completely free with no account required. All projections run locally in your browser — your health and financial data are never sent to any server.
What if I need my HSA money for medical expenses now?
The strategy works best when you can afford to pay medical expenses out-of-pocket. If you need to use HSA funds for current medical costs, you still benefit from tax-free contributions and growth — just less than the full stealth IRA strategy. Even if you spend 50% of your HSA on current medical costs, the remaining 50% invested grows tax-free. The simulator lets you set annual medical expenses to see both strategies.
What is a High Deductible Health Plan (HDHP) and do I need one for an HSA?
Yes — HSA contributions are only allowed if you're enrolled in a High Deductible Health Plan (HDHP). For 2026, an HDHP has a minimum deductible of $1,650 (individual) or $3,300 (family). HDHPs typically have lower premiums, which can offset the higher deductible — especially for healthy individuals who rarely need medical care. The HSA tax benefits often more than compensate for the higher deductible.