2026 HSA Contribution Limits
The IRS sets new Health Savings Account contribution limits every year, adjusted for inflation. For 2026, the limits are:
| Coverage Type | 2026 Limit | With 55+ Catch-Up |
|---|---|---|
| Self-Only HDHP | $4,400 | $5,400 |
| Family HDHP | $8,750 | $9,750 |
These limits apply to the combined total of your own contributions and anything your employer puts into your HSA. The $1,000 catch-up contribution for savers age 55 and older is fixed by law and does not adjust for inflation.
How the Calculator Works
If you weren't covered by an HDHP for the full year, your contribution limit is generally prorated based on the number of months you were eligible (the "12-month rule"). There's an exception called the last-month rule: if you're HSA-eligible on December 1, you may be able to contribute the full-year amount even if you weren't covered all year — but you must then stay HDHP-eligible through the following December (a "testing period"), or the extra amount becomes taxable income plus a 10% penalty. This calculator uses the simpler, more conservative month-by-month proration; if the last-month rule could help you contribute more, confirm the details with a tax professional.
Worked Example
Coverage: Family HDHP, all 12 months
Age 55+: Yes (+$1,000 catch-up)
Employer contribution: $1,000
Full limit: $8,750 + $1,000 = $9,750. After subtracting the $1,000 employer contribution, this person can still contribute $8,750 of their own money in 2026.
Why Max Out Your HSA If You Can
An HSA is often called "triple tax-advantaged": contributions are tax-deductible (or pre-tax through payroll), the account grows tax-free, and withdrawals for qualified medical expenses are also tax-free. Unlike a Flexible Spending Account, HSA balances roll over every year with no "use it or lose it" deadline, and after age 65 you can withdraw funds for any purpose without penalty (you'll just owe ordinary income tax, similar to a traditional 401(k) or IRA).
To contribute to an HSA at all, you must be enrolled in an HSA-eligible High-Deductible Health Plan (HDHP), have no other disqualifying health coverage, not be enrolled in Medicare, and not be claimed as a dependent on someone else's tax return. For 2026, an HDHP must have a minimum deductible of $1,700 (self-only) or $3,400 (family), with an out-of-pocket maximum no higher than $8,500 (self-only) or $17,000 (family).
Frequently Asked Questions
Excess HSA contributions are subject to a 6% excise tax for every year the excess remains in the account. You can avoid the penalty by withdrawing the excess contribution plus any earnings on it before your tax filing deadline (including extensions).
Yes. The IRS limit applies to the combined total of your contributions and your employer's contributions to your HSA in the same year. Any employer contribution directly reduces the amount you can personally contribute.
No. The $1,000 catch-up contribution is individual — each spouse age 55 or older must make their own catch-up contribution into their own HSA (not the same account), even if they share family HDHP coverage.
Generally, your limit is prorated based on the number of months you were HSA-eligible (use the "Months Covered" slider above). A special "last-month rule" can let you contribute the full-year amount in some cases, but it comes with a testing period requirement — check with a tax advisor before relying on it.
It's a simplified estimate: your remaining contribution room multiplied by the marginal tax rate you enter. It doesn't account for payroll (FICA) tax savings on contributions made through an employer's cafeteria plan, state taxes, or your specific tax situation — use it as a rough guide, not a substitute for a tax professional.