A health savings account (HSA) is a tax-advantaged account that lets people enrolled in a qualifying high-deductible health plan set aside money to pay for medical costs. For 2026, the Internal Revenue Service set contribution limits at $4,400 for self-only coverage and $8,750 for family coverage, according to IRS Publication 969. The account is not available to everyone with health coverage, and using it well involves rules that are easy to misread.
What is a health savings account, and who can open one?
An HSA is a tax-exempt trust or custodial account that an individual sets up with a bank, insurer, or other IRS-approved trustee to pay or reimburse qualified medical expenses, per IRS Publication 969. Eligibility is tied to the health plan, not the account itself. To contribute, a person generally must be covered by a qualifying high-deductible health plan (HDHP) as of the first day of the month, have no disqualifying additional coverage, not be enrolled in Medicare, and not be claimed as a dependent on someone else's tax return, the IRS says.
An HDHP is defined by its deductible and out-of-pocket ceiling rather than by any single insurer's plan name. For 2026, the IRS set the minimum annual deductible at $1,700 for self-only coverage and $3,400 for family coverage, with maximum out-of-pocket limits of $8,500 and $17,000, respectively, according to IRS Revenue Procedure 2025-19. HealthCare.gov notes that eligible marketplace plans are typically labeled Bronze, Catastrophic, or otherwise designated as HSA-eligible, and that HDHPs usually carry lower monthly premiums paired with higher deductibles.
How much can be contributed to an HSA in 2026?
The IRS raised HSA contribution limits for 2026 to $4,400 for self-only coverage and $8,750 for family coverage, up from $4,300 and $8,550 in 2025, according to IRS Revenue Procedure 2025-19. Account holders age 55 and older may add a catch-up contribution of up to $1,000, a fixed statutory amount described in IRS Publication 969 rather than one adjusted each year for inflation. Contribution limits apply across all HSAs a person holds combined, not per account, if someone maintains more than one.
Contributions can come from an employer, from payroll deductions, or from the account holder directly. Personal contributions are deductible on the account holder's tax return regardless of whether they itemize, and employer contributions are excluded from taxable income, per IRS Publication 969.
What tax advantages does an HSA offer?
An HSA is structured around three separate tax benefits rather than one. Contributions reduce taxable income, investment or interest earnings inside the account grow tax-free, and withdrawals used for qualified medical expenses are not taxed, according to IRS Publication 969. Healthline describes this structure as a "triple-tax-advantage account," attributing the characterization to a financial planner interviewed for its coverage, and notes that most states do not tax HSA contributions at the state level, though it names California and New Jersey as exceptions that do.
Unlike a flexible spending account, an HSA balance is not forfeited at year's end. Unused funds roll over indefinitely and can continue earning tax-free returns, according to HealthCare.gov. After age 65, funds can be withdrawn for any purpose without penalty, though non-medical withdrawals are then taxed as ordinary income, both HealthCare.gov and IRS Publication 969 note.
What can HSA funds pay for?
Qualified medical expenses under the tax code include a broad range of medical, dental, and vision costs, along with certain prescription drugs, for the account holder, a spouse, and any claimed dependents, as long as the expense is not reimbursed some other way, per IRS Publication 969. HealthCare.gov specifies that HSA funds can cover deductibles, copayments, and coinsurance, but generally cannot be used to pay health insurance premiums, with limited exceptions such as certain Medicare premiums after retirement.
What should someone weigh before opening an HSA?
Because contributions require enrollment in a qualifying HDHP, the decision is really a decision about the health plan first. HealthCare.gov describes the HDHP-HSA pairing as suited to people willing to accept a higher deductible in exchange for a lower monthly premium and the ability to build tax-advantaged savings. Healthline's coverage characterizes the account as generally best suited to people who are healthy with relatively low near-term medical expenses, or to those saving for costs in retirement, since unspent funds carry forward and can eventually be used for non-medical expenses once the account holder turns 65.
The tradeoff is real: an HDHP means paying more out of pocket before coverage kicks in during a high-cost year, even though certain preventive care may be covered before the deductible is met, according to HealthCare.gov. Someone who expects frequent or high medical costs in the coming year may find a lower-deductible plan a better fit despite forgoing HSA eligibility.
When should someone consult a tax or benefits professional?
This article describes how HSAs work in general terms; it is not tax, financial, or medical advice. Contribution limits, deductibility, and penalty rules can vary with a person's specific tax situation, state of residence, employer plan design, and Medicare enrollment timing. Anyone deciding whether to open or fund an HSA, or how to use one alongside Medicare enrollment, should confirm current-year figures and their own eligibility with a tax professional, benefits administrator, or the plan's official summary documents before acting, consistent with the eligibility conditions IRS Publication 969 lays out.
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