HSA Tax Savings Calculator

What is an HSA calculator? An HSA calculator is a planning tool that estimates how much you can save in taxes by contributing to a Health Savings Account. By entering your income, tax bracket, and contribution amount, you can instantly see your federal and state tax deductions, net out-of-pocket cost, and projected 10-year investment growth — all based on 2026 IRS limits.

How do HSA tax savings work? Health Savings Accounts offer a triple tax advantage: your contributions are tax-deductible (lowering your taxable income), the balance grows tax-free through investments, and withdrawals for qualified medical expenses are never taxed. Your total annual tax savings equal your contribution multiplied by the sum of your federal and state marginal tax rates. For example, contributing $4,300 at a combined 27% rate saves you $1,161 every year.

Example scenarios. A single filer earning $75,000 who contributes the maximum $4,300 at a combined 27% tax rate saves $1,161/year in taxes — and their account could grow to over $54,000 in 10 years at a 5% return. A family contributing $8,550 at a combined 30% rate saves $2,565/year, with a projected 10-year balance above $107,000. If you're 55+ and add the $1,000 catch-up, the savings are even higher.

2026 HSA contribution limits. For the 2026 tax year, the IRS sets maximum HSA contributions at $4,300 for self-only coverage and $8,550 for family coverage. Individuals aged 55 and older can make an additional $1,000 catch-up contribution, bringing their totals to $5,300 (single) or $9,550 (family). These limits apply to the combined total of employee and employer contributions.