A high deductible health plan for tax purposes is a health insurance plan whose deductible and out-of-pocket limits meet thresholds the IRS sets each year, which is what makes the enrollee eligible to open and fund a Health Savings Account. For 2026, that means a minimum annual deductible of $1,700 for self-only coverage or $3,400 for family coverage, with out-of-pocket costs capped at $8,500 and $17,000. Starting in 2026, bronze and catastrophic marketplace plans also count as HDHPs for HSA purposes even if they don’t meet those standard numbers.
The 2026 Deductible and Out-of-Pocket Thresholds
The IRS adjusts HDHP thresholds annually for inflation. For the 2026 tax year, a qualifying plan must carry a minimum annual deductible of at least $1,700 for self-only coverage or $3,400 for family coverage. Maximum out-of-pocket expenses, which include deductibles and copayments but not premiums, cannot exceed $8,500 for an individual or $17,000 for a family.1Internal Revenue Service. Rev. Proc. 2025-19
If a plan’s deductible falls even one dollar below the minimum, it doesn’t qualify. If out-of-pocket spending is allowed to run past the cap, the plan loses HDHP status. The base statutory amounts are written into the Internal Revenue Code, and the IRS indexes them upward each year.2Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts The 2025 figures, for comparison, were $1,650 and $3,300 for minimum deductibles and $8,300 and $16,600 for out-of-pocket maximums.3Internal Revenue Service. Rev. Proc. 2024-25
One detail trips people up on family plans. If a family HDHP has an embedded individual deductible that applies to each family member, that embedded amount must also meet the family-level minimum of $3,400 for 2026. A family plan with a $2,000 per-person embedded deductible fails the test, even if the overall family deductible reaches $3,400.
Bronze and Catastrophic Marketplace Plans Now Qualify
The biggest change for 2026 is that bronze and catastrophic health plans sold through the ACA marketplace are treated as HDHPs for HSA purposes regardless of whether they meet the standard deductible and out-of-pocket rules. Before this change, most people enrolled in these plans couldn’t contribute to an HSA because the plan structure didn’t line up with the HDHP definition.4Internal Revenue Service. Treasury, IRS Provide Guidance on New Tax Benefits for Health Savings Account Participants Under the One Big Beautiful Bill
IRS Notice 2026-05 clarifies that bronze and catastrophic plans don’t need to be purchased through an Exchange to qualify. A bronze plan bought off-marketplace still counts.5Internal Revenue Service. Expanded Availability of Health Savings Accounts Under the One, Big, Beautiful Bill Act – Notice 2026-05 The standard HDHP out-of-pocket maximums explicitly apply to plans “other than bronze and catastrophic plans,” so these newly eligible plans can exceed those caps and still qualify.1Internal Revenue Service. Rev. Proc. 2025-19
The same law also lets people enrolled in direct primary care arrangements contribute to an HSA and use HSA funds tax-free to pay their periodic direct primary care fees, starting January 1, 2026.4Internal Revenue Service. Treasury, IRS Provide Guidance on New Tax Benefits for Health Savings Account Participants Under the One Big Beautiful Bill
Coverage That Disqualifies You Even With a Qualifying HDHP
Meeting the HDHP thresholds isn’t enough by itself. To contribute to an HSA, you also can’t be covered by another health plan that pays benefits before your HDHP deductible is satisfied. This is where people most often lose HSA eligibility without realizing it.
Enrolling in any part of Medicare ends your ability to contribute. This catches many people off guard around age 65, especially those automatically enrolled in Medicare Part A when they start receiving Social Security benefits. You can still spend money already in your HSA tax-free on qualified medical expenses after enrolling in Medicare; you just can’t make new contributions.2Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts
A general-purpose Flexible Spending Account or Health Reimbursement Arrangement also disqualifies you, because those accounts can reimburse medical costs before you hit your HDHP deductible. A limited-purpose FSA or HRA restricted to dental and vision expenses does not. Separate dental, vision, or long-term care insurance is also fine, since those plans don’t overlap with the medical coverage your HDHP provides.6Internal Revenue Service. Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans
What an HDHP Can Cover Before the Deductible
An HDHP can cover preventive care at no cost to you before you’ve met the deductible without losing its qualifying status. This exception covers routine checkups, immunizations, and standard screenings like mammograms and cholesterol tests.2Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts Treatment for an existing illness or injury doesn’t count. A plan that covers a sick visit or an ER trip before the deductible kicks in fails the HDHP test.
Chronic Condition Medications
Since 2019, the IRS has allowed HDHPs to cover certain medications and services for chronic conditions before the deductible without losing qualifying status. Under IRS Notice 2019-45, the following are treated as preventive care when prescribed to manage a specific diagnosed condition:7Internal Revenue Service. Additional Preventive Care Benefits Permitted to Be Provided by a High Deductible Health Plan Under Section 223 – Notice 2019-45
- Diabetes: insulin, other glucose-lowering agents, glucometers, hemoglobin A1c testing, and retinopathy screening
- Heart disease: statins, ACE inhibitors, beta-blockers, and LDL testing
- Asthma: inhaled corticosteroids and peak flow meters
- Depression: SSRIs
- Hypertension: blood pressure monitors
- Osteoporosis: anti-resorptive therapy
These items only qualify as preventive care when prescribed to prevent a chronic condition from getting worse or triggering a secondary condition. The same medication prescribed for another purpose wouldn’t fall under this exception.
What Qualifying Unlocks: HSA Contributions and Tax Treatment
Having a qualifying HDHP is the gateway. The tax benefit comes from the HSA itself. For 2026, you can contribute up to $4,400 with self-only coverage or $8,750 with family coverage.1Internal Revenue Service. Rev. Proc. 2025-19 If you’re 55 or older by the end of the tax year, you can add an extra $1,000 as a catch-up contribution. That catch-up amount is set by statute and doesn’t adjust for inflation.2Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts
HSA contributions are deducted “above the line,” reducing your adjusted gross income whether or not you itemize. Employer contributions count toward the same annual limit. The account carries a triple tax advantage: deductible contributions, tax-free investment growth, and tax-free withdrawals for qualified medical expenses.
State Tax Treatment
Most states follow the federal treatment and let you deduct HSA contributions on your state return. California and New Jersey are the notable exceptions. Both states tax HSA contributions as regular income and also tax any interest or investment gains earned inside the account. If you live in either state, you’ll still get the federal deduction, but your state return won’t reflect it. A few states with no general income tax may still tax HSA investment earnings above certain thresholds, so check your state’s rules if your HSA balance has grown significantly.