HSA Growth Projection Calculator
Project how your HSA balance could grow over time with contributions, expenses, and investment returns.
Starting Value & Projection Period
Your current Health Savings Account balance. Includes all invested and uninvested HSA funds.
Number of years to project forward. Used to estimate long-term HSA growth.
Contributions & Expenses
Amount you contribute to your HSA each year. Subject to IRS contribution limits.
Amount you withdraw from your HSA each year for qualified medical expenses. Withdrawals for qualified medical expenses are tax-free.
Investment Return
Expected average annual return on HSA investments. Assumes the HSA balance is invested and grows over time.
Projected HSA Value
Estimated HSA balance at the end of the projection period. Based on contributions, expenses, and compounded investment growth.
Annual contribution minus annual expenses. Represents how much new money is added to the HSA each year.
HSA Growth Projection
An HSA is the only triple-tax-advantaged account: contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free.
About this calculator
This HSA Growth Projection Calculator estimates how your Health Savings Account balance could grow over time based on your contributions, medical expenses, and investment returns.
HSAs are unique because they offer triple tax advantages: contributions are tax-deductible, investment growth is tax-free, and withdrawals for qualified medical expenses are tax-free. This calculator helps visualize how those benefits compound over time.
Use this tool to explore how treating your HSA as a long-term investment account may impact your future healthcare and retirement planning.
What each input means
- HSA starting value is your current Health Savings Account balance. It includes all invested and uninvested HSA funds.
- Years is the number of years to project forward. Used to estimate long-term HSA growth.
- Annual contribution is the amount you contribute to your HSA each year. Contributions are subject to IRS limits.
- Annual expenses is the amount you withdraw each year for qualified medical expenses. This calculator assumes withdrawals are qualified and therefore tax-free.
- Rate of return is the expected average annual return on your HSA investments. The calculator assumes the balance is invested and grows over time.
- Projected HSA value is the estimated HSA balance at the end of the projection period, based on contributions, expenses, and compounded investment growth.
- Net deposit per year is annual contribution minus annual expenses. It represents how much new money is added to the HSA each year.
How does HSA growth work?
An HSA grows through a combination of contributions and investment returns, minus any withdrawals for medical expenses.
When funds are invested: contributions add new capital, investment returns compound over time, and qualified medical withdrawals reduce the balance but are tax-free.
This calculator models that behavior by adding annual contributions, subtracting annual medical expenses, and applying compound investment growth over time. The result is a projected HSA balance that reflects both saving and spending patterns.
Key levers that drive HSA growth
- Contribution level – Higher contributions increase the amount of money compounding.
- Medical expenses – Lower withdrawals allow more of the balance to remain invested.
- Investment returns – Higher returns accelerate long-term growth but increase uncertainty.
- Time horizon – Longer time horizons significantly amplify compounding.
Key assumptions & limitations
- Constant returns – Investment returns are assumed to be constant.
- Contribution limits not enforced – IRS contribution limits are not dynamically enforced by this calculator.
- Simplified taxes – Taxes are simplified and not recalculated.
- Qualified withdrawals – Withdrawals are assumed to be qualified medical expenses.
- Estimates only – Results are estimates, not tax or financial advice.
This calculator is intended for educational and planning purposes, not personalized tax guidance.