Is an HDHP always cheaper than a PPO?

Not always. It's usually cheaper in a low-usage year because of the lower premium, but if you hit the deductible and out-of-pocket max regularly, a PPO with copays can end up costing less overall. Run both scenarios using your actual spending history.

Can I switch between HDHP and PPO whenever I want?

No. Outside of a qualifying life event like marriage, a new child, or a job change, you're generally locked into your choice until the next open enrollment period, so it's worth taking the time to compare now rather than mid-year.

Do I lose HSA eligibility if I switch to a PPO?

You can't make new contributions once you're no longer covered by an HDHP, but any money already in the HSA stays yours and continues to grow tax-free for qualified medical expenses.

HDHP vs. PPO: How to Actually Pick a Health Insurance Plan During Open Enrollment

A practical guide to choosing between a high-deductible health plan and a PPO, with 2026 deductible and out-of-pocket numbers.

Open enrollment shows up once a year, gives you a week or two to decide, and then locks you into that decision for the next 12 months. Most people click through it fast, keep whatever plan they had, and move on. That's usually a mistake, because the difference between the wrong plan and the right plan can easily be $1,000 to $3,000 a year depending on how much health care you actually use.

This isn't about which plan is "better." It's about which plan fits your health situation, your cash cushion, and your tolerance for unpredictable bills. Here's how to actually run the numbers instead of guessing.

The Two Basic Options: HDHP and PPO

Most employer plans boil down to two structures.

A PPO (Preferred Provider Organization) usually has a lower deductible, a higher monthly premium, and fixed copays for things like doctor visits and prescriptions. You pay more every paycheck, but less when something actually happens.

A high-deductible health plan (HDHP) flips that: a lower premium taken out of every paycheck, but you pay full price for most care until you hit a much higher deductible. The upside is that HDHPs are the only plans that let you contribute to a Health Savings Account (HSA), which comes with its own tax advantages — covered in our HSA guide, so we won't repeat that here.

The Numbers That Actually Matter for 2026

To count as an HDHP and qualify for HSA contributions, the IRS sets minimum deductibles and maximum out-of-pocket limits every year. The 2026 minimum annual deductible is $1,700 for self-only HDHP coverage (up from $1,650 in 2025) and $3,400 for family HDHP coverage (up from $3,300 in 2025). The 2026 limit on out-of-pocket expenses is $8,500 for self-only HDHP coverage (up from $8,300 in 2025) and $17,000 for family HDHP coverage (up from $16,600 in 2025).

Non-HDHP plans, like most PPOs, follow a separate and higher ACA cap. For the 2026 plan year, the out-of-pocket limit for a Marketplace plan can't be more than $10,600 for an individual and $21,200 for a family. That gap matters: an HDHP actually caps your worst-case year lower than many PPOs do, even though your day-to-day costs are higher along the way.

Feature	Typical PPO	HDHP (2026 minimums)
Monthly premium	Higher	Lower
Deductible (self-only)	Often $500–$1,500	At least $1,700
Copays for routine visits	Usually yes, fixed amount	Usually no, full cost until deductible met
HSA eligible	No	Yes
Max out-of-pocket (self-only)	Up to $10,600	Up to $8,500

How to Actually Decide

Ignore the marketing language and do this instead:

Add up last year's actual health spending. Look at what you paid in premiums, copays, prescriptions, and any procedures. If it was under $1,500 for the year, a low-premium HDHP probably saves you money even in a bad year.
Check your cash cushion. An HDHP only makes sense if you can actually cover a $1,700–$3,400 deductible without going into debt if something happens in January. If your emergency fund is thin, a PPO's predictability may be worth the higher premium.
Factor in known upcoming costs. Planning a pregnancy, surgery, or ongoing treatment next year? Run the math on both plans assuming you hit the out-of-pocket max. Sometimes the PPO wins even with a higher premium.
Don't forget the HSA math. If you go with an HDHP, the money you're not paying in premium can go straight into an HSA, where it lowers your taxable income and grows tax-free for medical costs later. That changes the real cost comparison.

A Simple Way to Run the Comparison

Take each plan's annual premium (multiply the paycheck deduction by your number of pay periods) and add your expected out-of-pocket costs based on last year's usage. Whichever total is lower is the better deal in a typical year. Then separately check the worst-case scenario: premium plus the full out-of-pocket maximum for each plan. That tells you your downside risk if a major medical event hits.

Where This Fits Into Your Bigger Financial Picture

Health insurance is one of the biggest fixed costs most households have, and it rarely gets the same scrutiny as a mortgage or a car payment. Getting this one decision right can free up real money for debt payoff, retirement contributions, or your emergency fund. If you want a quick read on how choices like this are affecting your overall finances, running your numbers through Grade My Finance is a fast way to see where you actually stand before you commit to a plan for the next year.

Common Mistakes to Avoid

Picking the HDHP purely for the lower premium without having the deductible amount sitting in savings.
Picking the PPO out of habit without checking if you even used the copay benefits last year.
Forgetting that HDHP premium savings should be redirected into an HSA, not just absorbed into spending.
Not checking whether your regular doctors and prescriptions are in-network for both options — network size can matter more than the deductible structure.