For 2026, the IRS limits HSA contributions to $4,400 with self-only high-deductible coverage and $8,750 with family coverage. People who are 55 or older can add $1,000 on top of either number. Those caps count everything that goes into the account, including money from an employer.

Quick answer

  • Self-only coverage: $4,400 (up $100 from $4,300 in 2025).
  • Family coverage: $8,750 (up $200 from $8,550 in 2025).
  • Age 55+ catch-up: an extra $1,000, per the IRS's Publication 969.
  • Plan requirement: you generally need a qualifying high-deductible health plan (HDHP), with a few new exceptions starting in 2026.
  • Medicare: your HSA contribution limit drops to zero starting with the first month you are enrolled in Medicare.

2026 HSA and HDHP numbers at a glance

The IRS set these amounts in Revenue Procedure 2025-19. Both CPA Practice Advisor and Ascensus report the same figures.

ItemSelf-onlyFamily
Maximum HSA contribution$4,400$8,750
HDHP minimum deductible$1,700$3,400
HDHP maximum out-of-pocket$8,500$17,000

The out-of-pocket maximum covers deductibles, copayments and similar costs, but not premiums. A plan generally qualifies as an HDHP only if its deductible is at least the minimum and its out-of-pocket limit is no higher than the maximum.

What counts toward the limit

The annual limit is a combined total. If you contribute $3,000 and your employer adds $1,400 to a self-only account, you have reached the $4,400 cap. Contributions made through payroll and contributions you make directly both count. Check your pay stubs or your HSA provider's year-to-date summary before adding more.

The age 55 catch-up

Publication 969 says that if you are 55 or older at the end of the year, your limit rises by $1,000. Unlike the main limits, this amount is not adjusted for inflation each year. When both spouses are 55 or older, each needs their own HSA to receive their own catch-up, because joint HSAs are not allowed. For 2025, Publication 969 gives the combined family maximum with both catch-ups as $10,550. The same pattern applies in 2026, which would make it $10,750 (the 2026 family limit plus two $1,000 catch-ups).

Married couples and family coverage

According to Publication 969 (the 2025 edition), if either spouse has family HDHP coverage, both spouses are treated as having family coverage. If each spouse has family coverage under separate plans, the family limit is divided equally between them unless they agree on a different split. Each eligible spouse needs a separate HSA. The rules are written for 2025, and the 2026 dollar amounts simply replace the older ones.

New in 2026: more plans and services can qualify

The 2025 federal budget law known as the One Big Beautiful Bill Act (OBBBA) changed some HSA eligibility rules, and the IRS explained them in Notice 2026-5. RSM's summary of that notice covers three changes:

  • Bronze and catastrophic plans: Plans of these types bought through the ACA exchange now count as HSA-compatible, even if they do not meet the usual HDHP deductible and out-of-pocket rules. The notice also reaches some off-exchange purchases. The details, especially for employer-funded arrangements, vary between summaries, so confirm the specifics for your plan with the insurer or the notice itself.
  • Telehealth: The rule that lets an HDHP cover telehealth before the deductible without costing you HSA eligibility is now permanent. In-person care, equipment and drugs connected to a telehealth visit still follow the normal deductible rules.
  • Direct primary care: Starting January 1, 2026, people in a qualifying direct primary care arrangement can still contribute to an HSA, and HSA money can pay the fees tax-free. The fee cannot exceed $150 per month for an individual or $300 per month for a family.

Steps to check your own limit

  1. Confirm that your plan is a qualifying HDHP or falls under one of the new 2026 exceptions. Your plan documents or insurer can tell you.
  2. Note whether your coverage is self-only or family for each month of the year.
  3. Add your own contributions and any employer contributions to see your total.
  4. If you are 55 or older, add the $1,000 catch-up.
  5. If you will enroll in Medicare during the year, plan for a reduced limit, since contributions stop counting once Medicare starts.

Common mistakes to avoid

  • Ignoring the employer contribution. Going over the limit by combining both sources is a frequent slip.
  • Contributing after Medicare starts. Publication 969 notes that retroactive Medicare coverage can turn contributions made in that period into excess contributions.
  • Misusing the last-month rule. If you are eligible on December 1, you are treated as eligible for the full year, but you must stay eligible through a testing period ending December 31 of the following year. If you do not, the affected contributions become taxable and a 10% additional tax applies.
  • Leaving excess money in the account. Excess contributions are not deductible and generally face a 6% excise tax for each year they remain. Removing the excess and its earnings by your return's due date, including extensions, avoids that tax.

When is the deadline?

Publication 969 for 2025 says contributions for that year can be made through April 15, 2026. The same pattern applies each year: contributions for a tax year can generally be made until the tax filing deadline of the following year. For 2026 contributions, confirm the exact date in the current IRS publication when it is released.

FAQ

Can I contribute the full family amount if my spouse and I have separate self-only plans?

Not under the usual rules. Each person with self-only coverage is limited to the self-only amount in their own HSA. Family limits apply when someone has family HDHP coverage. A tax professional can confirm how your situation applies.

Does the catch-up amount change in 2026?

No. It stays at $1,000, because the amount is set by law rather than adjusted for inflation.

Where can I check the official numbers?

The IRS publishes them in Revenue Procedure 2025-19 and explains the rules in Publication 969. For questions about your own taxes, ask a qualified tax professional or your HSA provider.

Sources

This article is an independent summary based on the sources listed above.