Calculate your 2026 HSA tax savings and projected balance at retirement, with real bracket math, the FICA wage base, and state-by-state treatment.
Your 2026 contribution limit is $4,400.
Gross pay before deductions — the standard deduction is applied for you.
An estimate for planning, not tax advice. Federal figures are the 2026 amounts from IRS Rev. Proc. 2025-19 and Rev. Proc. 2025-32; state classifications are as of 2026-08-06. Your own marginal rate depends on deductions, credits and other income this calculator does not model.
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A Health Savings Account is the only account with a triple tax advantage: contributions go in pre-tax, the money grows tax-free, and withdrawals for qualified medical expenses are tax-free too. Unlike an FSA, an HSA balance rolls over every year and can be invested, which makes it a serious retirement vehicle as well as a medical one. This calculator shows both sides — what this year's contribution saves in tax, and what the balance is worth at retirement. It computes the federal saving as the actual difference between two tax calculations rather than a flat bracket multiplication, applies the Social Security wage base to the FICA saving, steps the contribution up at 55 and stops it at Medicare enrollment, and knows which states do not allow the deduction at all.
An HSA is a tax-advantaged account available to people enrolled in a qualifying high-deductible health plan (HDHP). For 2026, you can contribute up to $4,400 with self-only coverage or $8,750 with family coverage, plus a $1,000 catch-up if you are 55 or older. To be HSA-eligible in 2026, your HDHP must have a deductible of at least $1,700 (self-only) or $3,400 (family). Unlike a Flexible Spending Account (FSA), HSA funds never expire, stay with you if you change jobs, and can be invested — so many people pay current medical costs out of pocket and let the HSA grow tax-free for retirement.
HSA Tax Savings Formula
Decide your HSA election when you choose a high-deductible health plan during benefits enrollment.
See how investing your HSA instead of spending it compounds tax-free over decades.
Savers 55 and older maximizing contributions in the years before Medicare enrollment.
Compare the FICA savings of contributing through payroll versus making direct contributions.
Weigh the tax impact of an HSA against a flexible spending account before choosing.
Quantify the deduction and tax savings from maxing out your HSA for the year.
Both states withhold the HSA deduction, and California also taxes the interest and dividends the account earns each year. Pick your state to see the saving you actually get rather than the federal one.
See both your immediate tax savings and the tax-free balance your HSA could grow to by retirement — most calculators show only one.
Pre-tax contributions, tax-free growth, and tax-free qualified withdrawals — the calculator turns that into real dollars for your situation.
A payroll contribution through a section 125 cafeteria plan also escapes Social Security and Medicare tax; a direct contribution does not, because payroll tax was already withheld. The saving is not a flat 7.65% either — Social Security stops at the wage base, so a high earner's FICA saving falls to the 1.45% Medicare rate.
If you're 55 or older, the calculator automatically adds the $1,000 catch-up contribution to your limit.
The 2026 IRS limits are applied automatically, and the calculator flags you if a contribution exceeds the cap.
Your federal saving is the difference between the tax you owe with the contribution and without it, taken on taxable income after the standard deduction — not your gross salary multiplied by a bracket. That matters: a $55,000 single filer is in the 12% bracket once the standard deduction is applied, not the 22% their salary alone suggests.
An HSA is a tax-advantaged savings account for people with a qualifying high-deductible health plan (HDHP). It has a triple tax advantage: contributions are pre-tax, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. Unlike an FSA, the balance rolls over indefinitely and can be invested.
For 2026, the HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. People 55 and older can contribute an extra $1,000 catch-up. To qualify, your HDHP must have a minimum deductible of $1,700 (self-only) or $3,400 (family) in 2026.
If you are 55 or older and not enrolled in Medicare, you can contribute an additional $1,000 per year on top of the standard limit. This calculator adds the catch-up automatically when your age is 55 or more. Spouses who are both 55+ each need their own HSA to make two catch-up contributions.
Your immediate saving equals your contribution times your combined tax rate (marginal federal rate + 7.65% FICA for payroll contributions + state rate). Maxing a $4,400 self-only HSA at a 22% federal bracket, 7.65% FICA, and 5% state saves about $1,525 in the first year — before any of the tax-free growth.
Not quite. Contributions made through your employer's payroll (a Section 125 cafeteria plan) avoid federal income tax, state income tax, and the 7.65% FICA tax. Contributions you make directly are deductible from income tax (on Form 8889) but do not avoid FICA. Use the contribution-method toggle to see the difference.
An HSA requires an HDHP, but the balance rolls over every year, is yours to keep if you change jobs, and can be invested. An FSA has no health-plan requirement and is open to most employees, but it is largely use-it-or-lose-it and tied to your employer. The HSA is the stronger long-term and retirement vehicle; use our FSA calculator to compare.
Yes. Most HSA providers let you invest the balance once it passes a threshold, and the growth is tax-free. Many savers pay current medical bills out of pocket and let the HSA compound for decades. After age 65 you can withdraw for any purpose paying only income tax (like a traditional IRA), while medical withdrawals stay tax-free.
A high-deductible health plan (HDHP) is one whose deductible meets the IRS minimum — $1,700 self-only or $3,400 family in 2026 — and whose out-of-pocket maximum is within the IRS cap. You're HSA-eligible if you're covered by an HDHP, have no other disqualifying coverage, and aren't enrolled in Medicare or claimed as a dependent.
When you enroll in Medicare Part A after 65, coverage is backdated up to six months (never earlier than the month you turned 65). Any HSA contribution made during those retroactive months becomes an excess contribution. The practical rule is to stop contributing six months before you claim Medicare or Social Security, since claiming Social Security at or after 65 enrolls you in Part A automatically.
Divide your target annual contribution by your number of pay periods. Maxing self-only coverage in 2026 means $4,400 across 26 biweekly paychecks, or about $169 per paycheck; family coverage is $8,750, or about $337. The per-paycheck figure above updates with your pay frequency, and because the money is pre-tax your take-home falls by less than the amount you contribute.
You must be enrolled in a qualifying high-deductible health plan, which means more out-of-pocket cost before insurance pays. Contributions stop once you enroll in Medicare. Withdrawals for anything other than qualified medical expenses are taxed and, before 65, carry a 20% penalty. California and New Jersey do not allow a state deduction, and California taxes the account's earnings annually. And an HSA only pays off if you can afford to leave the balance invested rather than spending it each year.
California and New Jersey. California's Franchise Tax Board states plainly that California law does not conform to the federal HSA deduction and that the state does not recognise Health Savings Accounts, so contributions are added back to state income and the account's interest and dividends are taxable in the year earned. New Jersey's return instructions exclude Archer MSA contributions from income but list no equivalent HSA provision. Everywhere else, your state follows the federal treatment.
Money taken out for anything that is not a qualified medical expense is added to your taxable income and charged an additional 20% tax. That penalty disappears at 65 — from then on a non-medical withdrawal is simply taxed as income, like a traditional IRA distribution, which is why an HSA works as a retirement account of last resort. Withdrawals for qualified medical expenses stay tax-free at any age.
You cannot have a general-purpose health FSA and an HSA at the same time, so it is usually a choice. An HSA requires a high-deductible plan but the balance is yours: it rolls over forever, can be invested, and moves with you between jobs. A health FSA has no plan requirement and the full election is available on day one, but it is use-it-or-lose-it apart from a limited carryover, and it is forfeited when you leave. If you qualify for an HSA and can cover the higher deductible, the HSA is the stronger long-term account; the FSA is better when your medical spending is predictable and you need the money this year.