Open Enrollment 2025: Why HDHPs Still Deserve a Hard Look

Open enrollment season kicks off on November 1, and this year it brings a sobering reality for millions of Americans: higher premiums. Pandemic-era relief measures that enhanced Affordable Care Act (ACA) subsidies are starting to phase out. For many middle-income households, particularly those just above the subsidy cliff, this means steep increases—sometimes hundreds of dollars more per month compared to last year.

That sticker shock has many rethinking their health insurance choices. Traditional low-deductible plans may feel “safer,” but the math often doesn’t work—especially if you’re healthy and rarely meet your deductible. This is where high-deductible health plans (HDHPs) paired with Health Savings Accounts (HSAs) come into play. These plans not only reduce premiums but also unlock one of the most powerful tax-advantaged accounts available to U.S. investors.

It’s time for my annual reminder: don’t dismiss the HDHP/HSA option without running the numbers.

The Premium Gap: Why HDHPs Win More Often Than You Think

A few years ago, my employer provided a calculator to compare the costs of different plans. On one end, my share of the “deluxe” plan I had traditionally chosen cost over $800 per month for family coverage. The HDHP option was $364 per month. That’s an annual savings of $5,300 in premiums before a single doctor’s visit.

At first glance, the lower deductible on the deluxe plan looked appealing: $1,500 versus $3,000 on the HDHP. But when I modeled different healthcare scenarios—ranging from no expenses at all to a year filled with hospital stays—the HDHP always came out ahead. Why? Because the premium savings far outweighed the deductible difference.

Even in a worst-case, high-cost medical year, the total out-of-pocket for the HDHP was less than the deluxe plan once you factored in premiums. That exercise completely changed how I think about health coverage.

The Triple Tax Advantage of HSAs

The other major benefit of choosing an HDHP is that it makes you eligible for a Health Savings Account (HSA).

Here’s why HSAs are unique in the financial world:

  1. Pre-tax contributions: Contributions reduce your taxable income.
  2. Tax-free growth: Investments inside the account compound without taxes.
  3. Tax-free withdrawals: Money comes out tax-free if used for qualified healthcare expenses, and unlike retirement plans you don’t have to wait decades to get your money penalty-free.

That’s a triple advantage you won’t find in 401(k)s, IRAs, or any other account. In fact, I often call HSAs the most tax-efficient vehicle in America.

Unlike a Flexible Spending Account (FSA), which has a “use it or lose it” rule, your HSA balance rolls over year after year. Think of it as a stealth retirement account with built-in liquidity: you can reimburse yourself for qualified medical expenses any time, even years later, as long as you keep receipts.

2026 Contribution Limits

The IRS just increased HSA contribution limits for 2026:

  • $4,400 for individuals
  • $8,750 for families
  • Plus, a $1,000 catch-up for those age 55 and older

That’s a sizable tax shelter. For a family in the 32% federal tax bracket, maxing out contributions saves $2,800 in federal taxes upfront—before accounting for compounding growth.

Employer Contributions Sweeten the Deal

Many employers make contributions to employees’ HSAs as an added incentive to pick the HDHP. In my case, my employer contributed $2,000 annually, which covered nearly half of my HDHP premiums. That essentially shifts the math even further in favor of the HDHP.

If your employer offers this benefit, it’s like free money—not unlike a 401(k) match. Make sure you’re not leaving it on the table.

A Hidden Retirement Tool

While HSAs are designed for medical expenses, their utility doesn’t stop there. At age 65, you can withdraw HSA funds for any purpose without penalty. You’ll pay ordinary income tax on non-medical withdrawals, just like with a traditional IRA—but you’ll still have enjoyed years (or decades) of tax-free compounding.

That’s why many people treat their HSA as a “stealth IRA”: paying for current medical expenses out of pocket while letting the HSA balance grow for retirement.

Who Shouldn’t Choose an HDHP?

HDHPs aren’t for everyone. If you expect significant medical expenses every year—say, ongoing treatments, expensive prescriptions, or chronic conditions—the higher deductible might outweigh the premium savings.

Also, if you don’t have any savings and couldn’t cover the cost of a significant medical expense early in the year—before you meet your deductible—this also might not be the plan for you.

However, for those with relatively low or unpredictable healthcare usage, the combination of lower premiums, employer contributions, and the unmatched tax advantages of the HSA usually makes the HDHP the superior option.

Final Thoughts

Health insurance is one of the biggest expenses many families face, and premiums are climbing again in 2025. That makes it critical to approach open enrollment with clear eyes and hard math—not just habit or fear of deductibles.

High-deductible health plans, paired with HSAs, offer a way to reduce costs today while also building long-term wealth. They provide flexibility, powerful tax breaks, and even a backup retirement account.

So, as you sift through your options this open enrollment season, ask yourself: Am I paying more for peace of mind—or am I strategically using the tools available to cut costs and build wealth?