It's the most wonderful time of the year for HR departments—and the most confusing for everyone else.
Open enrollment packets are landing in inboxes, and once again the cheapest-looking plan on the menu is the high deductible health plan, or HDHP.
The pitch sounds simple: lower premiums, a tax-advantaged health savings account, and "you only pay when you use it." Here's the catch.
That lower premium is real, but so is the deductible—and it's bigger than most people expect.
For 2025, the IRS sets the minimum deductible for an HDHP at $1,650 for individuals and $3,300 for families.
The maximum out-of-pocket exposure runs up to $8,300 for singles and $16,600 for families.
One bad year—a surgery, a broken ankle, a surprise ER visit—can mean thousands in bills before insurance pays a dime beyond preventive care.
The math only works if you actually fund the HSA.
An HSA lets you set aside pre-tax money for medical costs, and it rolls over year to year, unlike a flexible spending account.
But a 2024 survey from the Employee Benefit Research Institute found that many HSA holders treat it as a spending account rather than a savings one, draining it on small expenses and leaving nothing when a real bill hits.
If you pick the HDHP but don't contribute to the HSA, you've essentially signed up for the worst of both worlds: high costs when you're sick and no cushion to soften the blow.
Employers love these plans because they shift risk to workers and keep premiums predictable.
That's not a conspiracy—it's just how the incentives work.
If your company offers an HSA match or seed contribution, that's free money and worth factoring in.
If it doesn't, run the numbers yourself before defaulting to the cheapest option.
A quick gut-check: add up your premiums for the year, then estimate what you'd actually spend on care.
If you're generally healthy, take no expensive prescriptions, and can set aside at least the deductible in an HSA over time, an HDHP can pencil out.
If you have a chronic condition, take a tier-three drug, are planning a pregnancy, or have kids who visit urgent care like it's a hobby, a traditional plan with a higher premium may cost less overall.
One more thing people miss: the deductible and the out-of-pocket maximum are not the same number.
You keep paying coinsurance after the deductible until you hit the out-of-pocket cap.
That cap is your true worst-case scenario, and it belongs in your emergency fund planning—not a vague "we'll figure it out." Also watch the network.
A low premium means nothing if your specialist is out of network or your preferred hospital isn't covered.
Check the provider directory before you commit, not after.
And if you're self-employed or buying on the marketplace, subsidies can change the math entirely, so price both options rather than assuming the bronze plan wins. **Our take:** An HDHP isn't a scam, but it's not a shortcut to cheap healthcare either.
Treat it like a bet on your own health—and only take it if you can afford to lose that bet.
Final Thoughts
If the deductible would wipe out your savings, the "cheaper" plan is the expensive one.