How Much Does High-Deductible Health Insurance Cost? A 2026 Guide for High-Earning Families

By Kevin Luu, Co-Founder and Chief Learning Officer. Reviewed on 2026-09-30.

The true cost of high-deductible health insurance is your share of the premium plus whatever you pay before the plan pays, capped by the out-of-pocket maximum. For 2026, an HSA-qualified family plan can make you pay up to $17,000 a year in-network before it covers 100%, but the premium is usually much lower than a PPO, and the plan lets you put up to $8,750 into a Health Savings Account (HSA) free of federal tax. For a W-2 household in the 37% federal bracket, those tax savings plus an employer HSA deposit can make the high-deductible plan the cheaper choice even in a bad health year.

Two state notes matter. California does not recognize HSAs, so the state taxes the contributions and the account’s yearly earnings. Washington has no wage income tax in 2026, so Washington families keep the full federal benefit (with one change ahead for the highest earners, covered below).

The three numbers that set what an HDHP costs you

Every high-deductible health plan (HDHP) comes down to three figures on your employer’s summary of benefits:

• Your premium share. What comes out of each paycheck. Employers often price the HDHP well below the PPO to steer people toward it.
• The deductible. What you pay for non-preventive care before the plan starts sharing costs. For 2026, a plan must have a deductible of at least $1,700 for self-only coverage or $3,400 for family coverage to be HSA-qualified.
• The out-of-pocket maximum. The most you pay in a year for in-network care, including the deductible and coinsurance. For 2026 it cannot exceed $8,500 self-only or $17,000 family for an HSA-qualified plan.

Those 2026 limits come from IRS Rev. Proc. 2025-19. Many employer plans sit below the federal ceiling, and only your plan document tells you where yours sits.

A “$10,000 deductible” plan can still be HSA-qualified as long as the family out-of-pocket maximum stays at or under $17,000. Preventive care, such as well-child visits and standard vaccines, can be covered before the deductible under the IRS safe harbor described in IRS Publication 969, which matters for a family with young children who see the pediatrician often.

Worked example: a $900,000 California household with two kids

Assumptions (illustrative, not a real employer’s plan): married couple filing jointly, $900,000 of W-2 pay, two children ages 4 and 8, both parents maxing their 401(k)s. Their employer offers two plans:

• PPO: $450 a month for family coverage ($5,400 a year), $600 deductible, 20% coinsurance, $5,000 family out-of-pocket maximum.
• HDHP: $120 a month ($1,440 a year), $3,400 deductible, 20% coinsurance, $8,000 family out-of-pocket maximum, plus a $1,500 employer HSA deposit.

With the HDHP, the family fills the rest of the 2026 family HSA limit: $8,750 minus the $1,500 employer deposit leaves $7,250 through payroll. After 401(k) deferrals and the standard deduction, their federal taxable income is above $768,700, so for 2026 the last dollars are taxed at 37%. Payroll HSA contributions made through the employer’s cafeteria plan also skip Medicare tax (1.45%, plus the 0.9% Additional Medicare Tax at this income). Social Security tax does not change if, as assumed here, each spouse’s pay is already above the 2026 wage base of $184,500.

Federal tax saved on $7,250: 37% plus 2.35% is about $2,850 a year. California gives no break: the $7,250 stays in California wages, and the $1,500 employer deposit is added to them, which costs about $155 at the 10.3% California bracket (2025 rates, the latest published).

“Net tax saved” here is the $2,850 federal saving minus the roughly $155 of California tax on the employer deposit, about $2,695. A Washington family with the same pay keeps the full $2,850. In this example the HDHP costs less in every scenario, because the $3,960 premium gap plus the employer deposit is larger than the $3,000 difference between the two out-of-pocket maximums. When your employer’s premium gap is small and there is no HSA deposit, the result can flip, so run your own numbers.

One refinement: the table shows premiums before tax. If both plans’ premiums come out of pay through the employer’s cafeteria plan, they skip federal income, Social Security and Medicare tax (IRS Publication 15-B). At this family’s 39.35% federal rate (37% plus 2.35%), the $3,960 premium gap is then worth about $2,400 after federal tax. That trims roughly $1,550 from the HDHP’s lead in each row, and in this example the HDHP still costs less in all three years.

Why California families get less out of the HSA

California does not conform to the federal HSA rules (see the FTB Schedule CA (540) instructions). In practice that means:

• Payroll HSA contributions and employer deposits are taxable for California, even though they are not in federal wages.
• Interest, dividends and capital gains inside the HSA are taxable on your California return each year, at ordinary rates, because California has no lower rate for capital gains.
• Your federal and California wages will not match on your W-2, and your preparer needs the HSA’s annual earnings to report them.

The federal saving still usually makes the HSA worth funding. Some California families keep the HSA invested in a low-turnover index fund to limit the yearly state tax on fund dividends and capital gain distributions; others hold cash to pay near-term bills. Both are reasonable, and the choice should be written down.

Washington: full benefit now, a question mark from 2028

Washington has no individual income tax for 2026, so the HSA saves the full federal amount with no state add-back (WA Department of Revenue). The 2026 Legislature enacted a 9.9% income tax on AGI over $1,000,000 starting January 1, 2028. How it will treat HSA contributions is not yet set out in DOR guidance, so households near $1,000,000 should revisit the HSA math once those rules are published.

When the high-deductible plan is the wrong choice

• Your doctors are not in the HDHP network. Some employers offer the HDHP only on a narrower network. If your child’s specialist or preferred children’s hospital is out of network, the out-of-pocket maximum no longer protects you.
• Your spouse has a general-purpose health FSA. Under Pub 969 you cannot contribute to an HSA if you are covered by a spouse’s general-purpose health FSA. A limited-purpose FSA (dental and vision) is compatible. It is a frequent mistake in two-income families with different employers. A dependent care FSA, $7,500 per household for 2026, does not affect HSA eligibility.
• Cash flow is tight early in the year. At this income it rarely is, but a January surgery means paying the deductible before much has gone into the HSA.
• The premium gap is small. If the PPO costs only a few hundred dollars more a year and has a much lower out-of-pocket maximum, the HSA tax saving may not cover the extra exposure.

If you buy coverage yourself, for example during a gap between jobs, marketplace premiums depend on age, county and family size, and you can compare HSA-qualified plans on Covered California or Washington Healthplanfinder. For most W-2 families at this income, coverage comes through an employer, and the comparison above is the one that counts.

The decision to make at open enrollment

1. Pull the summary of benefits for each plan and note premium, deductible, coinsurance and out-of-pocket maximum.
2. Check that your pediatrician, any specialist and your preferred hospital are in network for the HDHP.
3. Confirm neither spouse is enrolled in a general-purpose health FSA if you want the HSA.
4. Fill in the three-row table above with your own numbers, using your actual federal bracket.
5. If you choose the HDHP, set payroll contributions so that employee plus employer money equals $8,750 for 2026, and decide whether the HSA is invested or held in cash.

What to document for your kids

Health insurance is one of the first money decisions your children will make on their own, often at 26 when they leave your plan. A one-page note explaining why you picked the plan you did, how you weighed the premium against the worst-case year, and where the HSA receipts are kept gives them a model to follow. It also helps your spouse if the person who usually handles benefits is unavailable. Federal rules let an HSA pay for qualified expenses incurred after the account was opened, and Pub 969 requires you to keep records showing the money went to qualified medical expenses, so the receipt file is worth keeping in one shared place. Conversations fade. Documentation compounds.

Common questions

Are high-deductible health plans worth it for high earners?

Often yes, if the employer prices the HDHP well below the PPO and adds an HSA deposit. At a 37% federal bracket, a $7,250 payroll HSA contribution saves about $2,850 in federal income and Medicare tax for 2026. California families lose the state benefit and pay state tax on HSA earnings, which narrows but rarely erases the advantage.

Can I use the HSA for my children’s medical bills?

Yes. Pub 969 allows tax-free HSA distributions for qualified medical expenses of you, your spouse and your dependents, which covers pediatric visits, prescriptions and therapy that qualifies as medical care. Keep receipts. California families still owe state tax on the account’s earnings each year, even when distributions are used for qualified expenses.

Is a $10,000 deductible plan HSA-qualified?

It can be. For 2026 the family deductible must be at least $3,400 and the in-network out-of-pocket maximum cannot exceed $17,000 (Rev. Proc. 2025-19). A $10,000 family deductible with an out-of-pocket maximum at or below $17,000 meets those tests. Whether it is a good buy depends on the premium savings compared with the extra risk.

Next step

Before your next open enrollment, run the three-scenario comparison with your plan’s real numbers. If you want help fitting the health plan into your RSU, 401(k) and tax picture, our retirement and employee benefits team and tax management team can review it with you as part of the Tax & Wealth Assessment. For how your income compares with other households, see what is considered a high earner, and for writing down family money decisions, see our family governance work.

This article is general education, not individual tax or insurance advice. The right plan depends on your family’s full picture.

Written by

Kevin Luu

Co-Founder and Chief Learning Officer, Bright Advisers

Kevin has advised high-income W-2 tech and biotech families since 2015, and leads the education-first Age Five Family Office from Brea, California.

Connect on LinkedIn →  · About Kevin