HDHP and HSA: How the Pairing Works

An HDHP and HSA are designed to work as a team. You contribute pre-tax dollars, spend them on qualified medical expenses, and the money rolls forward year to year with no expiration date.

Sep 22, 2026

10 minute read

Burst guide cover, for shoppers: the headline "HDHP and HSA: How the Pairing Works" over the line "How the account works, in plain language." with three tags: FSA, HSA, HRA.

Short answer

A high deductible health plan (HDHP) is a health insurance plan with lower premiums and higher deductibles than traditional plans. An HDHP pairs with a Health Savings Account (HSA), a tax-advantaged account that lets you set aside pre-tax money for qualified medical expenses.

The pairing works because HSA eligibility is tied directly to HDHP coverage. If you have an HDHP, you're eligible to open and contribute to an HSA. The HSA lets you build a fund for medical costs without paying taxes on the contribution, the growth, or withdrawals for qualified expenses. Your money stays in the account year after year, so you can use it now or save it for future healthcare costs.

What is a high deductible health plan?

A high deductible health plan is a type of health insurance that shifts more responsibility for routine medical costs to you in exchange for lower monthly premiums. Instead of paying higher premiums with low out-of-pocket costs, an HDHP charges you less upfront. Healthcare.gov defines an HDHP as "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. You pay most of your healthcare expenses until you meet the plan's deductible, then the insurance kicks in.

HDHP coverage levels

An HDHP must meet IRS minimum deductible levels to qualify. IRS Publication 969 puts it this way: an HDHP carries a higher annual deductible than typical health plans. It also carries "a maximum limit on the sum of the annual deductible and out-of-pocket medical expenses that you must pay for covered expenses," under the same rule. For 2026, a qualifying HDHP has a deductible of at least $1,700 for individual coverage or $3,400 for family coverage, up from $1,650 and $3,300 in 2025. The out-of-pocket maximum, which includes your deductible, is $8,500 for individual coverage or $17,000 for family coverage in 2026, up from $8,300 and $16,600 in 2025. These are the IRS's 2026 inflation adjustments, and they change yearly, so check your plan document for the current figures.

HDHP vs. other plan types

An HDHP differs from a PPO (preferred provider organization) or HMO (health maintenance organization) in how costs are distributed. Traditional PPO and HMO plans have lower deductibles but charge higher monthly premiums. An HDHP inverts this trade-off: you pay less each month but more when you receive care, at least until you meet the deductible. An HDHP also typically has no network restrictions like an HMO and offers more flexibility in choosing providers.

Who is eligible for an HDHP, and what makes one qualify for an HSA?

Most people under 65 with health insurance can elect an HDHP through their employer or purchase one directly. Your employer offers HDHP options during open enrollment, or you can buy a qualifying plan on the individual market if you're self-employed or uninsured. To be eligible, you must not have other coverage, with limited exceptions for accidental injury, vision, dental or limited-purpose FSA plans.

An HDHP automatically makes you eligible to contribute to an HSA, but the HSA itself isn't automatic. You must actually open the account and elect to contribute. IRS Publication 969 lists the conditions: you must be "covered under a high deductible health plan," have no other health coverage except what is permitted, and not be enrolled in Medicare. You also can't be claimed as a dependent on someone else's tax return. Your employer may offer an HSA through a payroll plan, or you can open one independently through a bank or financial institution. Once you have an HSA, you can contribute pre-tax dollars up to annual IRS limits and spend them on qualified medical expenses.

How money enters your HSA

An HSA funded through your employer works like a pre-tax deduction. Money is deducted from your paycheck before taxes, reducing your taxable income for the year. Your employer may also contribute to your HSA as an employee benefit. If you have an individual HSA not tied to an employer plan, you can contribute directly and claim the contribution as a tax deduction on your tax return.

Annual contribution limits

The IRS sets annual HSA contribution limits and adjusts them for inflation most years. For 2026, you can contribute up to $4,400 for individual coverage or $8,750 for family coverage, up from $4,300 and $8,550 in 2025, under the same Rev. Proc. 2025-19 figures that set the HDHP deductible minimums. If you're 55 or older, you can contribute an additional $1,000 per year as a catch-up contribution. Your employer contributions count toward your limit.

HSA money you don't spend

HSA balances roll forward year to year with no expiration date. If you don't spend your HSA money in a given year, it stays in the account earning interest or investment growth, depending on your account type. This makes the HSA unique among health accounts. A Flexible Spending Account (FSA) follows a use-it-or-lose-it rule, where money left over by year-end is forfeited. Your HSA works differently: it builds over time and carries forward every year, with no deadline to spend it.

How money comes out of your HSA

Money in your HSA can be withdrawn to pay for qualified medical expenses, which are defined by the IRS. Qualified expenses include doctor visits, prescriptions, dental work, vision care, and many other health services and products. You can pay out-of-pocket for a medical expense and then reimburse yourself from your HSA months or years later, giving you time to let the HSA balance grow.

Accessing HSA money

Most HSAs issue a debit card that works like a credit card at pharmacies, doctor offices and hospitals. You can also request a check or transfer money to your bank account. Some HSA administrators let you pay a provider directly from the account. Keep receipts and records to show that withdrawals were for qualified medical expenses, as the IRS may audit HSA use.

Who can file HSA claims

An HSA pays out as a distribution you request from your HSA custodian for a qualified expense. When a purchase needs a letter of medical necessity, Burst writes the letter and files the claim for you. For an expense that already qualifies under IRS Publication 502, you request the distribution yourself: you withdraw or direct-pay the funds without needing your custodian's approval first. Keep records showing the expense was qualified. IRS Publication 969 is direct about the cost of getting this wrong: "there is an additional 20% tax on the part of your distributions not used for qualified medical expenses," on top of ordinary income tax.

Year-end and job change considerations

You don't face pressure to spend all your money before the end of the year. Your HSA carries no year-end deadline, unlike an FSA. You keep whatever balance remains in your HSA, and it continues to grow tax-free.

Changing jobs or losing HDHP coverage

If you change jobs and your new employer doesn't offer an HDHP, you can no longer contribute to your HSA. However, your existing HSA balance stays yours permanently. You can continue to withdraw money for qualified medical expenses. If you later return to an HDHP-eligible plan, you can resume contributions.

Coverage changes during the year

If you lose HDHP coverage mid-year, for example due to a life event or plan change, you can still contribute to your HSA for the remainder of that month. You can't make contributions for any month after that. If you were HSA-eligible and covered by an HDHP for the entire prior year, you have until the tax filing deadline to make a contribution for that partial-year period.

HDHP vs. HSA: Key differences

An HDHP is a health insurance plan. An HSA is a savings account. They're separate but linked. You need an HDHP to be HSA-eligible, but the HDHP itself doesn't include the savings account. You choose separately whether to open an HSA.

Feature	HDHP	HSA
Plan type	Health insurance	Tax-advantaged savings account
Cost structure	Low premiums, high deductible	No monthly fees, pre-tax contributions
Who covers medical costs until deductible is met	You pay out-of-pocket	Your HSA pays if you choose to use it
Eligibility requirement	Age under 65, no other major coverage	Must be covered by an HDHP
Money expiration	Your deductible resets yearly	No expiration, balance rolls forward
Investment growth	Covers medical services	Money can earn interest or investment growth
Portability	Ends if you switch plans	Stays with you if you change jobs or lose coverage
Who owns the funds	Insurance company manages plan	You own the HSA balance

Where Burst fits

A few things in this world are reimbursable only with a letter of medical necessity, such as a gym membership, massage therapy or a piece of fitness or recovery equipment tied to a diagnosed condition. For those, Burst writes the letter and files the claim for $35, and refunds it if no letter is issued or the claim is denied. See how a letter works.

Frequently asked questions

What's the best high deductible health plan?

There is no single best HDHP. The right one depends on your expected medical use, your budget for the deductible, and whether it pairs with an HSA you can actually fund. Compare the deductible, out-of-pocket maximum and premium against a traditional plan's numbers before you enroll, and confirm the plan is HSA-qualified if that matters to you.

How much does a high deductible health plan cost?

An HDHP's monthly premium is typically lower than a PPO's, but you pay more out-of-pocket before the plan starts covering care, up to the deductible. Total yearly cost depends on how much care you use: a healthy year can cost less overall, while a year with major medical needs can cost close to the plan's full out-of-pocket maximum.

Can you have an HSA without an HDHP?

No. HSA eligibility requires an active HDHP. You can't contribute to an HSA if you're covered by a traditional PPO, HMO or other non-qualifying plan. However, if you have an existing HSA balance, you can continue to withdraw money from it for qualified expenses even if you're no longer covered by an HDHP.

Is an HDHP worth it?

An HDHP works best if you're generally healthy and don't expect significant medical expenses. The lower premiums can save money annually. If you have an HSA and can afford to pay medical expenses out-of-pocket and leave the HSA balance untouched, it functions as a long-term retirement savings account. If you have frequent medical needs, a traditional plan with lower out-of-pocket costs may be more affordable overall.

What happens to my HSA if I switch to a plan that is not an HDHP?

Your HSA balance remains yours and can be used for qualified medical expenses indefinitely. You simply can't make new contributions while you're covered by a non-HDHP plan. If you re-enroll in an HDHP later, you can resume contributions.

Can I withdraw HSA money for non-medical expenses?

Yes, but with a tax penalty. If you withdraw HSA money for expenses that aren't qualified medical expenses, you owe income tax on the withdrawal plus a 20% penalty (or 15% if you're over 65). This differs from an FSA, where non-qualified withdrawals aren't allowed at all. Keep careful records of what the money was used for.

How does an HDHP compare to a PPO?

An HDHP has a lower premium but higher deductible than a PPO. You pay more when you need care but less each month. A PPO has a higher premium but lower deductible, so you pay more upfront but less when you use services. The right choice depends on your expected health care needs and budget.

Can my employer contribute to my HSA?

Yes. Many employers contribute to employee HSAs as a benefit. Employer contributions count toward the annual IRS contribution limit. This is a form of pre-tax compensation, so it reduces your taxable income and your employer's payroll taxes.

What counts as a qualified medical expense for HSA withdrawals?

Qualified medical expenses include doctor visits, hospital care, prescriptions, dental work, vision care, mental health services and many medical supplies and devices. IRS Publication 502 lists eligible and ineligible items. General wellness or cosmetic procedures typically don't qualify.

Keep reading: HDHP + HSA: A Complete Strategy Guide for Beginners, What's an HSA?, How Much to Contribute to an HSA, The Complete Guide to HSA and FSA Eligible Items, and all guides on this topic.