🩺 HSA Calculator 2026: Tax Savings & Growth

An HSA is the only account that is tax-free going in, growing and coming out. See your saving.

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Formula at a glance

HSA Calculator: Tax saved — contribution × (federal + state + 7.65% FICA). Example: Family plan, $1,000 from employer, 22% bracket → Tax saved this year: $2,685
How the HSA Calculator works: Tax saved — contribution × (federal + state + 7.65% FICA)

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📘 About the HSA Calculator

If you have an HSA-eligible high-deductible health plan, you can put $4,400 (self-only) or $8,750 (family) into a Health Savings Account for 2026, plus $1,000 at 55+. Employer money counts towards the limit.

Contributions lower your taxable income — and skip 7.65% Social Security and Medicare tax if made through payroll. Money spent on qualified medical costs is tax-free, and invested balances can grow for decades.

🧮 Formula

Tax saved
contribution × (federal + state + 7.65% FICA)

✏️ Worked examples

Family plan, $1,000 from employer, 22% bracket

You enter
HDHP coverageFamily
Your age40 years
You contribute (0 = maximum)0 $
Employer contribution1,000 $
Through payroll?Yes (saves FICA too)
Federal tax bracket22%
State income tax rate5%
Medical spending from the HSA a year0 $
Years to project20 years
Yearly return6%
You get
Tax saved this year$2,685
2026 limit for you$8,750
You contribute$7,750
Employer adds$1,000
HSA after 20 years$341,186

$2,685.

Self-only, $2,000, 12% bracket

You enter
HDHP coverageSelf-only
Your age30 years
You contribute (0 = maximum)2,000 $
Employer contribution0 $
Through payroll?Yes (saves FICA too)
Federal tax bracket12%
State income tax rate5%
Medical spending from the HSA a year0 $
Years to project20 years
Yearly return6%
You get
Tax saved this year$493
2026 limit for you$4,400
You contribute$2,000
Employer adds$0
HSA after 20 years$77,985

$493.

🧭 How to use this calculator

What you enter

  • HDHP coverage
  • Your age (years)
  • You contribute (0 = maximum) ($)
  • Employer contribution ($)
  • Through payroll?
  • Federal tax bracket
  • State income tax rate (%)
  • Medical spending from the HSA a year ($)
  • Years to project (years)
  • Yearly return (%)

What you get

  • Tax saved this year
  • 2026 limit for you
  • You contribute
  • Employer adds
  • HSA after 20 years

❓ Frequently asked questions

What are the 2026 HSA contribution limits?

$4,400 for self-only coverage and $8,750 for family coverage, plus $1,000 catch-up from age 55.

What counts as an HSA-eligible plan in 2026?

A high-deductible plan with a deductible of at least $1,700 (self) or $3,400 (family). From 2026 bronze and catastrophic marketplace plans also qualify.

What happens to my HSA when I turn 65?

You can withdraw for any reason without penalty, paying income tax on non-medical use — like a traditional IRA. Medical withdrawals stay tax-free.

Does HSA money roll over?

Yes. Unlike an FSA, there is no use-it-or-lose-it rule; the money is yours even if you change jobs.