Insurance calculator

Free hsa savings calculator

Project how large your HSA grows — enter your balance, annual and employer contributions, expected return and horizon to see the final balance, total contributions and lifetime tax saved, updated live, as you type.

On this page12 sections

InputsLive

Solve for

Savings goal

Current savings

Annual return rate

Target timeframe

yrs

Result

Monthly saving needed

$640.87

To reach $50000 in $5 yrs at 5%

Monthly saving$640.87

Goal$50,000

Timeframe5 years

Return rate5%

Hypothetical projection at fixed rate. Actual savings returns vary. Excludes taxes.

Results are estimates. Consult a professional.

Overview

What this HSA savings calculator projects

This HSA savings calculator projects how large a Health Savings Account can grow over time when you treat it as a long-term investment rather than a spending account. Enter your current balance, what you contribute each year, what your employer adds, an expected rate of return and how many years until you draw on it. The calculator compounds the account year by year and shows the final balance, your total contributions and the lifetime income tax you save by funding it. Because an HSA is triple-tax-advantaged, the growth shown here is money that is never taxed when spent on qualified medical care.

An HSA's appeal is the triple tax advantage: contributions are deductible, the balance grows tax-free, and qualified medical withdrawals are tax-free. No other account stacks all three — which is why a well-funded HSA can quietly become one of a saver's largest retirement-era health buckets.

Method

How HSA growth is calculated

The projection is a future-value calculation with annual contributions. Each year the calculator grows the existing balance by your expected return, then adds that year's combined deposit — your own contribution plus any employer contribution. Repeating that for the number of years you set gives the projected final balance.

each year: balance = balance × (1 + return) + (your contribution + employer contribution)

final balance = the balance after the last year

lifetime tax savings = your contribution × marginal tax rate × years

HSA contributions are deductible, earnings accumulate tax-free, and distributions for qualified medical expenses are not taxed — the rules this projection assumes. See IRS Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans.

Inputs

How to use the inputs

Current HSA balance. What you have in the account today. It compounds from year one alongside new contributions.
Annual contribution (you). The deductible amount you plan to add each year. This is the figure the tax-savings number is based on.
Employer contribution. Any HSA money your employer adds. It grows with your balance but is already pre-tax, so it does not add to your deduction.
Expected return. The annual growth rate on invested funds. Cash HSAs earn little; invested HSAs are often modeled at 5–8%.
Years until use. The horizon you let the account compound — the longer it is, the more tax-free growth dominates the final balance.
Marginal tax bracket. Your top tax rate, used to estimate the income tax your contributions save.

The calculator does not check your contribution against the IRS annual limit — it projects whatever you enter. Keep your own contribution plus the employer amount at or under the limit for your coverage tier (see the table below).

Worked example

A worked example: 20 years of HSA growth

Example: a mid-career saver investing the HSA

You start with $5,000 in the account, add $4,000 a year yourself, your employer adds $1,000, you expect a 7% annual return and you leave it to grow for 20 years. Your marginal tax bracket is 22%. What does the account become?

Step 1 — Grow the starting balance

The opening $5,000 compounds for 20 years at 7%: $5,000 × 1.07²⁰ = $19,348.42. That is the starting balance alone, before any new deposits.

Step 2 — Compound the yearly deposits

Each year you and your employer add a combined $5,000. Twenty years of $5,000 deposits compounding at 7% is $5,000 × (1.07²⁰ − 1) ÷ 0.07 = $204,977.46.

Step 3 — Add the pieces together

Final balance = $19,348.42 + $204,977.46 = $224,325.88. Of that, your contributions are $4,000 × 20 = $80,000, your employer added $1,000 × 20 = $20,000, your opening balance was $5,000, and the remaining $119,325.88 is tax-free growth — more than half the account.

Step 4 — Read the tax savings

Lifetime tax savings counts only your deductible contributions: $4,000 × 22% × 20 years = $17,600. That is income tax you never paid because each year's contribution lowered your taxable income.

$224,325.88 projected balance

After 20 years the account holds $224,325.88 against $105,000 of money put in (your $80,000 + employer $20,000 + the $5,000 starting balance), with $17,600 of income tax saved along the way — and every dollar spent on qualified care comes out tax-free.

Quick reference

2025 and 2026 HSA contribution limits

Your contribution plus your employer's must stay within the IRS annual limit, which depends on whether you have self-only or family HDHP coverage. Savers 55 and older can add a $1,000 catch-up on top.

Limit	2025	2026
Self-only contribution limit	$4,300	$4,400
Family contribution limit	$8,550	$8,750
Catch-up (age 55+)	+$1,000	+$1,000
HDHP min. deductible (self / family)	$1,650 / $3,300	$1,700 / $3,400

Source: IRS Publication 969 and Rev. Proc. 2025-19. Limits combine your contributions and your employer's. The $1,000 catch-up is fixed in statute and is not inflation-adjusted.

Strategy

Why a long horizon changes everything

An HSA used as a checking account for this year's prescriptions never compounds. The big balances appear only when contributions are invested and left alone for years — and when current medical bills are paid out of pocket so the account keeps growing.

Invest, don't just hold cash. Many HSAs sweep balances above a threshold into mutual funds. The expected-return input only earns out if the money is actually invested.
Pay small bills out of pocket when you can. Every dollar you don't withdraw keeps compounding tax-free, and qualified expenses can be reimbursed years later if you keep the receipts.
Capture the full employer contribution. Employer HSA money is effectively free balance that compounds alongside yours — never leave it on the table.
Front-load when cash flow allows. A contribution made early in the year has more time to grow than the same dollars added in December.

Definitions

HSA savings definitions

A tax-advantaged account paired with a qualifying high-deductible health plan. Contributions are deductible, growth is tax-free, and qualified medical withdrawals are tax-free.

The three tax breaks an HSA stacks: a deduction going in, tax-free growth, and tax-free qualified withdrawals.

What a balance plus a stream of contributions is worth after compounding for a set number of years at a given return.

HSA money your employer adds. It counts toward the annual IRS limit but is already pre-tax, so it does not add to your personal deduction.

The tax rate on your last dollar of income. It sets how much each deductible HSA contribution saves you.

A medical cost the IRS lets you pay from an HSA tax-free, such as doctor visits, prescriptions and many dental and vision costs (IRS Publication 502).

Accuracy

How accurate is this HSA projection?

The compounding math is exact, but a multi-decade projection rests on assumptions. Real investment returns vary year to year and may be lower than the rate you enter, contribution limits rise over time, and your tax bracket can change. The calculator also assumes you keep deposits within the legal limit and spend withdrawals on qualified care.

Treat the final balance as a planning estimate of what consistent saving could build — not a guarantee or financial advice. Confirm current limits and the rules for qualified expenses with the IRS, and talk to a tax or financial professional before making large decisions.

IRS Publication 969 — Health Savings Accounts and Other Tax-Favored Health Plans.IRS Rev. Proc. 2025-19 — inflation-adjusted HSA and HDHP limits for 2026.

Questions

Frequently asked questions about the free hsa savings calculator

A HSA savings calculator is a free online tool that helps you project Health Savings Account growth with annual contributions and tax savings. HSA: triple-tax-advantaged. Deductible contributions, tax-free growth, tax-free withdrawals for medical. It runs entirely in your browser with instant results and no sign-up.

It depends on contributions, return and horizon. Starting from $5,000 and adding $5,000 a year (your $4,000 plus a $1,000 employer contribution) at a 7% return for 20 years projects to about $224,326 — of which roughly $119,326 is tax-free growth and only $105,000 is money actually put in.

Three tax breaks stack in one account: contributions are deductible going in, the balance grows tax-free, and withdrawals for qualified medical expenses are tax-free coming out. No other account combines all three, which is why a long-held, invested HSA can become one of the most efficient retirement-health buckets.

A cash HSA earns almost nothing, so the long-run balances in this projection only appear if the account is actually invested. Many HSAs sweep balances above a threshold into mutual funds. Investing is what lets the expected-return input compound — but it carries market risk, so weigh it against money you may need for near-term medical bills.

No — employer HSA contributions are already excluded from your income, so they are not deducted again. The calculator's tax-savings figure counts only your own deductible contributions. The employer money still helps: it counts toward the IRS limit and compounds in the account alongside yours.

No. The compounding math is exact, but real returns vary year to year and may fall short of the rate you enter, limits rise over time, and your tax bracket can change. Treat the final balance as a planning estimate of what consistent saving could build, not a promise, and confirm current rules with the IRS.

About

About this HSA savings calculator

This HSA savings calculator runs entirely in your browser — the balances, contributions and rate you enter are never stored or sent anywhere. It compounds your account year by year (growing the balance by your expected return, then adding your contribution plus the employer's) and recomputes the projected final balance, total contributions and lifetime tax savings the instant you change a field. It is a planning estimate, not financial advice.

It is one of our free insurance calculators. To plan a single year against the IRS limit, use the HSA contribution calculator, or work backward from a target with the HSA goal calculator. Browse the complete calculators directory.