Each spring, the IRS publishes the Health Savings Account contribution limits and High-Deductible Health Plan (HDHP) requirements for the coming year. Here are the official 2026 numbers, what changed from 2025, and the deadlines you need to know to max out every dollar.
2026 HSA Contribution Limits
| Coverage Type | 2026 Limit | 2025 Limit | Change |
|---|---|---|---|
| Self-only coverage | $4,400 | $4,300 | +$100 |
| Family coverage | $8,750 | $8,550 | +$200 |
| Catch-up (age 55+) | +$1,000 | +$1,000 | No change |
The catch-up contribution stays at $1,000 because it's set in statute, not adjusted for inflation. Once you turn 55, you can add $1,000 on top of whichever coverage tier you're enrolled in.
2026 HDHP Requirements
To contribute to an HSA, you must be enrolled in a qualifying HDHP for the months you contribute. The IRS sets minimum deductibles and maximum out-of-pocket limits each year.
| Requirement | Self-only | Family |
|---|---|---|
| Minimum annual deductible | $1,700 | $3,400 |
| Maximum out-of-pocket | $8,500 | $17,000 |
If your plan's deductible is lower than the minimum, or its out-of-pocket maximum is higher than the cap, it doesn't qualify as an HDHP and you can't contribute to an HSA that month. Check your benefits summary or call HR if you're unsure.
Key Deadlines
- April 15, 2027 — last day to make 2026 HSA contributions (the tax filing deadline). Contributions made through April 15, 2027 can be designated as 2026 contributions if you let your custodian know.
- December 31, 2026 — last day for employer contributions and any payroll-deducted contributions for 2026.
- October 15, 2027 — extended deadline does not apply. Even if you file an extension, HSA contributions must be in by April 15.
Coordinating Limits with a Spouse
If both spouses have family HDHP coverage, the family limit ($8,750 in 2026) is shared between them — they decide how to split it. If each spouse has self-only coverage on separate HDHPs, each can contribute up to $4,400. The catch-up contribution must go into the account of the spouse who's actually 55+ — you can't combine catch-ups in one account.
Partial-Year Eligibility
If you're only HSA-eligible for part of the year (because you started a new job, switched plans, or enrolled in Medicare mid-year), your contribution limit is prorated by the number of months you were eligible on the first day of the month. The "last-month rule" lets you contribute the full annual limit if you're eligible on December 1, but you must remain eligible through the entire following year — otherwise you'll owe back taxes plus a 10% penalty.
Don't Forget the FICA Bonus
Contributions made through payroll deduction also escape Social Security and Medicare taxes — an extra ~7.65% savings on top of your federal income tax savings. If you're maxing the family limit at $8,750, that's an additional ~$669 in your pocket compared to making the same contribution from your bank account after payday. See our breakdown of the three HSA tax benefits for the full math.
What to Do Now
If you're not on track to max out, take five minutes to update your payroll contribution. Divide the annual limit by remaining pay periods to find your new per-paycheck amount. Then make sure your receipt system is set up so every qualified expense is documented. And if you want to see what 2026 contributions could grow to over a 30-year horizon, run the numbers through our HSA ROI calculator.