HSA Contribution Limits, Catch-Up and HDHP Requirements

The 2026 HSA contribution limits are $4,400 for self-only coverage and $8,750 for family coverage, set by the IRS in Revenue Procedure 2025-19.¹ If you’re 55 or older, you can add another $1,000 on top. Those base numbers are standard inflation adjustments, but 2026 also brings the biggest expansion of HSA eligibility in years: bronze and catastrophic health plans now count as HSA-compatible for the first time.

The 2026 Base Limits

The maximum you can put into a health savings account for the 2026 tax year depends on your coverage type:

Self-only coverage: $4,400
Family coverage: $8,750

These caps cover every dollar that lands in the account from any source. Your payroll contributions, direct deposits you make yourself, and anything your employer puts in — matching funds, a flat seed contribution, wellness incentives — all count against the same ceiling. If your employer deposits $1,200 during the year and you have self-only coverage, your own contributions can’t exceed $3,200.

You have until the federal income tax filing deadline to make contributions for a given tax year, which for 2026 means roughly April 15, 2027.² That gives you a runway into the following year to top off the account if payroll deductions didn’t get you to the cap.

Catch-Up Contributions at 55 and Older

If you turn 55 by December 31, 2026, you can contribute an extra $1,000. That raises your effective ceiling to $5,400 for self-only coverage and $9,750 for family coverage.² The catch-up amount is fixed by statute and doesn’t move with inflation.

When both spouses are 55 or older and one carries a family HDHP, each spouse can make a $1,000 catch-up contribution. They can’t both route that extra money to the same account, though. Each spouse needs an HSA in their own name to claim their own catch-up.²

What Happens If You Contribute Too Much

Contributions above the annual cap trigger a 6% excise tax on the excess for every year it stays in the account.³ You can avoid the penalty by pulling the excess amount, plus any earnings on it, out of the account before your tax filing deadline. Keeping a running total is the simplest defense, especially if money is flowing in from both payroll and separate deposits.

HDHP Requirements for 2026

Unless you’re relying on the new bronze or catastrophic plan pathway described below, HSA eligibility still runs through a qualifying high deductible health plan. For 2026, the IRS thresholds are:

Minimum annual deductible: $1,700 self-only, $3,400 family
Maximum out-of-pocket expenses: $8,500 self-only, $17,000 family

The out-of-pocket maximum counts deductibles, copayments, and similar charges, but not premiums.¹ A plan with a deductible below the floor, or an out-of-pocket max above the ceiling, isn’t an HDHP for HSA purposes, and any contributions tied to it would be treated as excess. Preventive care can be covered before you meet the deductible without breaking HDHP status.

New Eligibility Rules Under the One, Big, Beautiful Bill Act

The One, Big, Beautiful Bill Act, signed in 2025, expanded HSA eligibility in three ways starting January 1, 2026. If you were locked out of an HSA in prior years, it’s worth checking whether any of these apply.

Bronze and Catastrophic Plans Now Qualify

Bronze-level and catastrophic plans available through a health insurance exchange are now treated as HSA-compatible, whether or not they meet the traditional HDHP definition. Many of these plans previously fell outside the HDHP parameters, which shut their enrollees out of HSA contributions entirely. The IRS clarified in Notice 2026-05 that the plans don’t have to be purchased through an exchange to qualify.⁴

Telehealth Before the Deductible Is Permanent

You can now use telehealth and other remote care services before meeting your HDHP deductible without losing HSA eligibility. This had been a temporary provision Congress kept extending. It’s now permanent.⁴

Direct Primary Care Arrangements

You can enroll in a direct primary care arrangement and still contribute to an HSA. HSA funds can also cover the periodic fees for these arrangements tax-free.⁴ Direct primary care is a membership model where patients pay a monthly or annual fee to a physician’s practice instead of billing insurance. Before this change, joining one could disqualify you from contributing.

Personal Eligibility Rules

Having the right plan is necessary but not sufficient. You also need to clear these personal requirements to contribute:

No Medicare enrollment. Once you enroll in any part of Medicare, including Part A, you can’t contribute anymore. You can keep spending down an existing balance tax-free on qualified medical expenses.²
Not claimed as a dependent. If someone else claims you on their return, you can’t contribute to your own HSA.²
No disqualifying other coverage. You generally can’t have separate health coverage that pays benefits before you meet your HDHP deductible. General-purpose FSAs and HRAs that cover medical costs before the deductible are the usual culprits. Limited-purpose coverage for dental, vision, or disability is fine.

One trap around age 65: if your Medicare Part A enrollment is backdated (which happens automatically for anyone drawing Social Security), you may need to stop HSA contributions retroactively. Planning contributions carefully in the months around your 65th birthday helps prevent excess contribution penalties.

Partial-Year Coverage and the Last-Month Rule

If you gain or lose HSA eligibility partway through 2026, your contribution limit is normally prorated. Divide the annual limit by 12, then multiply by the number of months you had qualifying coverage. A month counts only if you were eligible on the first day of it.

The last-month rule is the exception. If you’re HSA-eligible on December 1, 2026, you can contribute the full annual amount as if you’d been eligible all year. The catch is a testing period: you have to stay HSA-eligible for the entire next calendar year, through December 31, 2027. If you lose eligibility during that window because you switch to a non-qualifying plan, drop coverage, or enroll in Medicare, the amount you contributed under the rule beyond what proration would have allowed gets added to your taxable income, and you’ll owe a 10% additional tax on it.² The rule is worth using when you’re confident about the year ahead. It’s a gamble when your job or insurance situation is unsettled.

1
Internal Revenue Service. Rev. Proc. 2025-19
2
Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans
3
Office of the Law Revision Counsel. 26 U.S. Code 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities
4
Internal Revenue Service. Treasury, IRS Provide Guidance on New Tax Benefits for Health Savings Account Participants Under the One, Big, Beautiful Bill