HSA Tax Savings & Growth
HSA Calculator
Updated May 7, 2026 · See your annual federal/state/FICA tax savings + long-term HSA growth.
You are eligible for Medicare and generally cannot contribute to an HSA. However, you can still use existing HSA funds tax-free for qualified medical expenses.
Your contribution plus employer contribution exceeds the maximum limit.
Total Annual Tax Savings
Effective rate —
For a 22% federal bracket with the 2026 HSA limit of $4,400, contributing $3,000 via payroll saves about $1,040/year (effective rate 34.7%) and grows to $192,000 over 20 years at 7%.
Typical scenario — enter your details above for your personalized estimate.
Not Tax or Investment Advice — IRS Circular 230 Notice: Any U.S. federal tax information provided by this calculator is not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal Revenue Code or (ii) promoting, marketing, or recommending to another party any tax-related matter.
This calculator does not provide investment advice or fiduciary guidance. Projections assume constant rates of return and do not account for market volatility or changes in tax law. Consult a qualified tax professional and financial advisor for advice specific to your situation.
Understanding Health Savings Accounts
What Is an HSA?
A Health Savings Account (HSA) is a tax-advantaged savings account available to individuals enrolled in a High Deductible Health Plan (HDHP). HSAs offer a unique triple tax advantage that no other account provides.
The Triple Tax Advantage
HSAs provide three powerful tax benefits:
- Tax-Deductible Contributions: Reduce taxable income
- Tax-Free Growth: Interest and investments grow tax-free
- Tax-Free Withdrawals: For qualified medical expenses
2026 HSA Contribution Limits
The IRS sets annual contribution limits for HSAs:
- Individual Coverage: $4,400/year (+$100 from 2025)
- Family Coverage: $8,750/year (+$200 from 2025)
- Catch-Up (Age 55+): Additional $1,000/year
FICA Savings with Payroll
When you contribute through payroll deductions, you avoid FICA taxes:
- Social Security Tax: 6.2% avoided
- Medicare Tax: 1.45% avoided
- Total FICA Savings: 7.65% additional savings
Frequently Asked Questions
An HSA is a tax-advantaged savings account for individuals with High Deductible Health Plans (HDHPs). Contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are also tax-free — a triple tax advantage.
For 2026, the HSA contribution limit is $4,400 for individual coverage and $8,750 for family coverage. If you are 55 or older, you can contribute an additional $1,000 catch-up contribution.
HSAs offer three tax benefits: (1) Contributions are tax-deductible, reducing your taxable income; (2) Investment growth is tax-free; (3) Withdrawals for qualified medical expenses are tax-free. No other account offers this triple benefit.
If you contribute to your HSA through payroll deductions, you avoid FICA taxes (Social Security and Medicare) of 7.65% on your contributions. Direct contributions do not receive this FICA savings benefit.
Individuals aged 55 or older can make an additional catch-up contribution of $1,000 per year above the standard limit. This allows older savers to boost their HSA balance before Medicare eligibility at age 65.
Yes, most HSA providers offer investment options once your balance exceeds a threshold (often $1,000–$2,000). You can invest in mutual funds, stocks, and other options. Investment growth is tax-free when used for qualified medical expenses.
At age 65, you become eligible for Medicare and can no longer contribute to an HSA. However, you can still use your existing HSA funds tax-free for qualified medical expenses, including Medicare premiums.
Unlike Flexible Spending Accounts (FSAs), HSA funds roll over year to year with no “use it or lose it” rule, stay with you if you change employers, can be invested for long-term growth, and can be used in retirement for any purpose (with income tax on non-medical withdrawals after 65). See the linked HSA vs FSA guide for a side-by-side comparison.
Related Guides
Related Retirement Calculators
Official Sources
- IRS Publication 969: Health Savings Accounts (opens in new tab) — Authoritative IRS guidance on HSA eligibility, contribution limits, qualified medical expenses, and reporting.
- IRS Rev. Proc. 2025-19: 2026 HSA Limits (opens in new tab) — Official IRS revenue procedure setting 2026 HSA contribution limits and HDHP minimum deductibles.
- Healthcare.gov: HSA Information (opens in new tab) — Federal government glossary entry covering HSA basics for ACA marketplace enrollees.
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