What Is an HDHP?
A High-Deductible Health Plan (HDHP) is a health insurance plan with a higher annual deductible than traditional plans. In exchange for a higher deductible, HDHPs typically offer lower monthly premiums. For 2026, the IRS requires a minimum deductible of $1,700 for individual coverage or $3,400 for family coverage to qualify as an HDHP.
Only individuals enrolled in a qualifying HDHP—and not covered by any other non-HDHP health plan—are eligible to contribute to a Health Savings Account (HSA). HDHPs are increasingly popular with employees who want to save on premiums and build tax-advantaged savings for future healthcare costs.
How the Catch-Up Contribution Works (Ages 55+)
If you are age 55 or older by the end of the calendar year, the IRS allows you to make an additional "catch-up" contribution of $1,000 on top of the standard limit. This extra amount is designed to help older Americans accelerate their healthcare savings as they approach Medicare eligibility.
The catch-up contribution is per person, not per account. If both you and your spouse are 55 or older, each of you can contribute an extra $1,000—but each person must have their own HSA to receive their catch-up amount. You cannot deposit both catch-up contributions into a single account.
2026 HSA Contribution Limits at a Glance
| Coverage | Base Limit | With Catch-Up (55+) |
|---|---|---|
| Individual (Self-Only) | $4,400 | $5,400 |
| Family | $8,750 | $9,750 |
Key Benefits of Contributing to an HSA
- Triple tax advantage: Contributions are tax-deductible, growth is tax-free, and qualified withdrawals are tax-free.
- No "use it or lose it" rule: Unlike FSAs, HSA balances roll over indefinitely year after year.
- Investment potential: Many HSA providers allow you to invest your balance in mutual funds, ETFs, and other instruments once you reach a minimum threshold.
- Portability: Your HSA stays with you regardless of job changes, unlike employer-sponsored FSAs.
- Retirement bridge: After age 65, HSA funds can be used for any purpose (taxed as ordinary income, similar to a traditional IRA) or tax-free for qualified medical expenses.
Frequently Asked Questions
Can I contribute to an HSA if I have Medicare?
No. Once you enroll in any part of Medicare (Part A, B, or D), you can no longer contribute to an HSA. However, you can still use existing funds in your HSA tax-free for qualified medical expenses, including Medicare premiums and out-of-pocket costs.
What happens if I over-contribute?
Excess contributions are subject to a 6% excise tax each year they remain in the account. To avoid the penalty, withdraw the excess amount (plus any earnings on that excess) before the tax-filing deadline, including extensions.
Can I change my contribution amount mid-year?
Yes. You can adjust your HSA contributions at any time during the year. If you change from individual to family HDHP coverage (or vice versa) during the year, your contribution limit is prorated based on the months of each coverage type—unless you meet the "last-month rule" exception.