A high deductible health plan (HDHP) is a health plan that meets a federal tax definition, not just a plan with a large deductible. For calendar year 2026, IRS Rev. Proc. 2025-19 sets the minimum annual deductible at $1,700 for self-only coverage and $3,400 for family coverage, and caps the deductible plus other out-of-pocket expenses at $8,500 and $17,000. A plan that meets the definition can be paired with a health savings account (HSA). A plan that merely has a high deductible, but fails one of the tests, cannot.
This article explains a US tax definition as the IRS publishes it. It is general information, not insurance, tax or financial advice, and it does not say whether any plan is right for anyone. A licensed insurance agent, your employer's benefits administrator or your state Department of Insurance can speak to specific plans.
Sources read September 11, 2026. The dollar thresholds change every year. Each figure below names its calendar year and the IRS document it comes from.
What is a high deductible health plan, in plain terms
HealthCare.gov's glossary, read September 11, 2026, gives the consumer description: "A plan with a higher deductible than a traditional insurance plan. The monthly premium is usually lower, but you pay more health care costs yourself before the insurance company starts to pay its share." The same entry explains why the term matters: an HDHP can be combined with an HSA, "which is why it's more commonly called an HSA-eligible plan."
That second sentence is the point. "High deductible" in everyday speech is a description. "High deductible health plan" in the tax code is a test, and passing it is what opens an HSA. How that premium-for-deductible trade works in practice is covered in our explainer on the low premium, high deductible trade-off.
The three tests a plan has to pass
Reading the IRS revenue procedure and Publication 969 together, an HDHP has to clear three separate bars.
Test 1: a deductible at or above the floor. The annual deductible cannot be lower than the IRS minimum for that year.
Test 2: out-of-pocket costs at or below the ceiling. The deductible plus the member's other out-of-pocket expenses for covered, in-network care cannot exceed the IRS maximum for that year. Premiums are not part of this sum.
Test 3: no coverage before the deductible, except what the rules allow. The plan generally cannot pay benefits before the deductible is met. Publication 969 (2025) describes the main exception: an HDHP may provide preventive care benefits "without a deductible or with a deductible less than the minimum annual deductible." Telehealth is a second exception, covered below.
A plan with a very large deductible can still fail test 2 if its out-of-pocket cap is too high, or test 3 if it covers ordinary office visits with a copay before the deductible. That is the most common reason a plan that sounds high deductible turns out not to be HSA-eligible.
The figures, by year and by document
All figures read on irs.gov on September 11, 2026.
| Threshold | 2026 (Rev. Proc. 2025-19, IRB 2025-21, May 19, 2025) | 2027 (Rev. Proc. 2026-24, IRB 2026-25, June 15, 2026) |
|---|---|---|
| Minimum annual deductible, self-only | $1,700 | $1,750 |
| Minimum annual deductible, family | $3,400 | $3,500 |
| Maximum deductible plus other out-of-pocket, self-only | $8,500 | $8,700 |
| Maximum deductible plus other out-of-pocket, family | $17,000 | $17,400 |
For reference, IRS Publication 969 (2025) gave the 2025 figures as a $1,650 and $3,300 minimum deductible and an $8,300 and $16,600 out-of-pocket maximum. Each year's numbers are published in an IRS revenue procedure before the year they apply to, and the IRS restates them in Publication 969.
One comparison that trips readers up. The HDHP out-of-pocket ceiling is a tax-code number. Marketplace and most other ACA-compliant plans also have an annual out-of-pocket maximum set under separate health insurance rules, and the two figures are not the same number. A plan's own cap appears in its Summary of Benefits and Coverage, and what does and does not count toward it is set out in our explainer on what counts toward your out-of-pocket maximum.
Self-only versus family: the embedded deductible question
The family figures apply when a plan covers more than one person. The HDHP rules test the plan's deductible for family coverage against the family minimum. Many family plans have an individual deductible embedded inside the family deductible, and whether that embedded amount meets the rules is a plan design question the plan's summary or benefits administrator can answer. We are stating the principle here, not how any given plan is built.
What changed in 2026: bronze, catastrophic and telehealth
The IRS announced three changes under the law it calls the One, Big, Beautiful Bill, in news release IR-2025-119 dated December 9, 2025 and read September 11, 2026. Two of them change what counts as HSA-compatible without changing the HDHP definition itself.
- Bronze and catastrophic plans. "As of Jan. 1, 2026, bronze and catastrophic plans available through an Exchange are considered HSA-compatible, regardless of whether the plans satisfy the general definition of an HDHP."
- Telehealth. The law "made permanent the ability to receive telehealth and other remote care services before meeting the high-deductible health plan (HDHP) deductible while remaining eligible to contribute to an HSA."
- Direct primary care. "Beginning Jan. 1, 2026, an otherwise eligible individual enrolled in certain direct primary care (DPC) service arrangements may contribute to an HSA."
The practical reading: before 2026, "HSA-eligible" and "HDHP" meant the same thing. From 2026, a bronze or catastrophic plan can be HSA-compatible even if it fails one of the three tests above. The HDHP tests still apply to every other plan.
Where the deductible sits in the payment sequence
An HDHP does not change how cost sharing works. It changes how much of the early spending falls on the member. The deductible applies first; after it is met, coinsurance or copayments apply until the out-of-pocket maximum is reached. That sequence is set out in our guide to how a deductible and coinsurance work.
HDHP is also a separate label from the network letters. An HDHP can be built as an HMO, a PPO or an EPO, and the network rules run alongside the deductible rules. Our comparison of what the HMO, PPO and EPO letters change covers that side.
What the definition does not tell you
The IRS definition says whether a plan qualifies. It says nothing about whether the plan is a good fit for any person, how much its premium is, how large its network is, or what care a person will need. Those are individual questions, and the regulator's definition does not answer them.
It also does not make the deductible smaller. A plan that passes all three tests still leaves the member paying the full allowed amount for most non-preventive care until the deductible is met.
How to check whether a specific plan qualifies
The plan's Summary of Benefits and Coverage lists the deductible and out-of-pocket maximum. Employer plans usually say directly whether the plan is "HSA-eligible" or "HSA-qualified." Marketplace listings on HealthCare.gov show plan details before enrollment. For confirmation, the employer's benefits administrator or the insurer can say whether the plan is designed to meet the IRS definition for the year, and the state Department of Insurance handles questions about insured plans. What they need from you: the plan name, the plan year and the summary document. The IRS rules themselves are in Publication 969.
Frequently asked questions
What is the minimum deductible for a high deductible health plan in 2026?
IRS Rev. Proc. 2025-19 sets the 2026 minimum annual deductible at $1,700 for self-only coverage and $3,400 for family coverage. For 2027, Rev. Proc. 2026-24 sets $1,750 and $3,500.
Is every plan with a high deductible an HDHP?
No. The plan also has to keep deductible plus other out-of-pocket costs under the IRS maximum, and generally cannot pay benefits before the deductible other than for preventive care and the other exceptions the IRS allows.
Can a bronze plan be paired with an HSA?
From January 1, 2026, IRS release IR-2025-119 states that bronze and catastrophic plans available through an Exchange "are considered HSA-compatible, regardless of whether the plans satisfy the general definition of an HDHP."
Does an HDHP cover preventive care before the deductible?
It may. IRS Publication 969 states that an HDHP may provide preventive care benefits "without a deductible or with a deductible less than the minimum annual deductible."
Sources, all read September 11, 2026: HealthCare.gov glossary, "High Deductible Health Plan (HDHP)," no date shown. IRS Rev. Proc. 2025-19, Internal Revenue Bulletin 2025-21, May 19, 2025. IRS Rev. Proc. 2026-24, Internal Revenue Bulletin 2026-25, June 15, 2026. IRS Publication 969 (2025). IRS news release IR-2025-119, December 9, 2025.