Insurance Calculators
HSA Contribution Calculator
Project a health savings account balance and the tax saved by contributing pre-tax each year.
Projected balance
$91,775
- Total tax saved
- $15,480
- Total contributed
- $64,500
- Investment growth
- $33,275
How this calculator works
Balance grows at the expected return each year after contributions and withdrawals
- tax saved
- contributions multiplied by your marginal rate
Example calculation
Illustrative example — not advice
Worked example — the hsa contribution calculator as it loads, using the default figures below.
- 01Enter annual contribution: $4,300.
- 02Enter current balance: $6,000.
- 03Enter marginal tax rate: 24%.
- 04Enter expected return: 5%.
- 05Enter years contributing: 15 years.
- 06Enter annual medical spending from the account: $800.
- 07Read the projected balance from the results panel: $91,775.
Projected balance: $91,775. Total tax saved: $15,480. Total contributed: $64,500. Investment growth: $33,275.
These figures come straight from the calculator above running on the values listed, so you can retype them and confirm every number yourself. Change any input and the results update immediately. Illustrative only — not a quote, offer or recommendation.
Important considerations
- HSAs require an eligible high-deductible health plan.
- Non-medical withdrawals before retirement age are penalised.
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Terms used here
Frequently asked questions
Why is an HSA described as triple tax advantaged?
Contributions are pre-tax, growth is untaxed, and qualified medical withdrawals are tax free.
Disclaimer
Legamoney calculators are educational tools. Results are estimates based on the figures you enter and do not constitute financial, tax or legal advice.
Last reviewed 2026-08-01