Most employer-sponsored health plan open enrollment periods run from October through December. You pick your coverage for the coming year, confirm your beneficiary designations, and decide how much to set aside in a health savings account or flexible spending account. Most families click “same as last year” and move on. For dental and vision, that is usually fine. For health insurance, it can be an expensive habit.
The IRS published 2027 Health Savings Account contribution limits in May through Revenue Procedure 2026-24.[1] Families enrolled in a qualifying high-deductible health plan (HDHP) can contribute up to $9,000 to an HSA next year — $250 more than 2026. Individuals on self-only coverage get $4,500, up $100 from $4,400. The age-55 catch-up contribution stays at $1,000. It is set by statute rather than indexed to inflation, and it has not changed since 2009.
If your employer offers both an HDHP and a traditional plan this fall, those limits have real consequences. An HSA is only available when you are enrolled in a qualifying HDHP. The decision to switch plans — or to stay on your current one — deserves more than a two-minute scan of monthly premiums. Here is how to work out which plan is the better deal for your family.
The 2027 Numbers from the IRS
Each year the IRS adjusts three sets of figures for inflation. For 2027 they are in Revenue Procedure 2026-24:[1]
- The HSA contribution limits
- The minimum deductible a health plan must carry to qualify as an HDHP
- The maximum out-of-pocket (OOP) limit an HDHP can impose
A plan that fails either the deductible floor or the OOP ceiling is not an HDHP, regardless of how it is marketed — and enrolling in a non-qualifying plan makes you ineligible to contribute to an HSA for any month you are covered under it.[2]
The contribution limits are a ceiling, not a target. You can put in any amount up to the maximum, and there are two ways to get money into the account:
- Payroll deduction through your employer. Contributions come out of your paycheck before federal income tax and, because they run through your employer’s benefits plan, before Social Security and Medicare tax as well — an extra 7.65 percent that no other route gets. You can usually change the amount during the year.
- Direct deposits to the HSA. You can also send money to the account yourself, either to the HSA your employer set up or to one you open at a brokerage or HSA provider of your choosing. You claim the deduction on your tax return (Form 8889) instead of through payroll, so you get the income-tax break but not the Social Security and Medicare savings. Contributions for 2027 can be made until the tax-filing deadline in April 2028.
Both routes count toward the same annual limit, and so does anything your employer deposits. A common setup is to contribute through payroll to the employer’s HSA and periodically move the balance to a low-cost provider to invest it. A direct trustee-to-trustee transfer between HSAs is not taxed and does not count against your limit.[2]
The limit is also pro-rated by month. You are eligible for any month in which you are covered by a qualifying HDHP on the first day of the month, and you lose one-twelfth of the annual limit for each month you are not.[2] Leave the HDHP at the end of October, and November and December drop out — $1,500 of 2027 family room.
What the Triple-Tax Advantage Actually Means
HSAs have a tax structure that no other account in the U.S. tax code matches.[2]
First Tax Break: Every dollar you contribute reduces your federal taxable income in the year you put it in — without itemizing. If you are in the 22 percent federal bracket and contribute $9,000 to a family HSA in 2027, you reduce your federal income tax bill by roughly $1,980. Contribute through payroll and you also skip the 7.65 percent Social Security and Medicare tax on that money. Most states exclude HSA contributions from state income tax as well; California is the best-known exception.
Second Tax Break: The balance grows tax-free. You can keep HSA funds in cash, or invest them in mutual funds and ETFs. Dividends, interest, and capital gains accumulate with no annual tax bill.
Third Tax Break: Qualified withdrawals for medical expenses come out tax-free.[2] Qualified expenses include deductibles, copays, prescriptions, dental and vision care, mental health services, and hundreds of other categories. Health insurance premiums generally do not qualify, with narrow exceptions such as COBRA, Medicare, and long-term care insurance.
Before age 65, a non-medical withdrawal is taxed as income and carries a 20 percent penalty on top. After 65, you can withdraw HSA money for any purpose. Medical withdrawals are still tax-free; non-medical withdrawals are taxed as ordinary income, like a traditional IRA, but without the penalty.
The practical implication: if you contribute to the HSA, invest the balance and pay medical bills out of pocket, the account becomes a second tax-free growth account — more flexible than a traditional IRA, because medical withdrawals are never taxed. The hard requirement is that you can cover your deductible without raiding the HSA every time a bill arrives.
Paying yourself back later: there is no deadline for reimbursing yourself. Any qualified expense you paid out of pocket after the HSA was opened can be withdrawn from the account tax-free later — next year or twenty years from now — as long as it was not already reimbursed or deducted and you kept the receipt.[2] Every medical bill you pay in cash becomes money you can take out of the HSA tax-free whenever you need it, at any age. I track ours in the HSA Contribution & Reimbursement Log, which totals the receipts we have not yet paid ourselves back for.
My wife and I have contributed to an HSA since 2015. For the first few years we used it like an FSA: we paid medical bills from the HSA, but whatever was left over stayed in the account instead of disappearing at the end of the year. After about four years, the leftover cash was enough to cover the next year’s bills, and we started investing the rest.
Once we had six months of living expenses in an emergency fund, we started paying routine care from checking and left the HSA invested to compound. That only works because we can cover a large bill in cash if we need to.
You do not have to go that far. If you would rather keep paying medical bills from the HSA, hold enough cash in the account at the start of each year to cover your plan’s out-of-pocket maximum — the deductible counts toward it — and invest the rest. Just remember that paying yourself back only works for bills you paid with money from outside the HSA.
How to Compare an HDHP to a Traditional Plan
The comparison between an HDHP and a PPO or HMO comes down to total annual cost under each plan. That number has four parts: the premium difference, any money your employer puts into the HSA, your expected out-of-pocket spending, and the tax savings from funding the HSA.
The employer deposit is easy to overlook. It is money in your account that the PPO does not give you, so it works as a straight reduction in what the HDHP costs — and for many families it is what makes saving in the HSA possible in the first place. Some employers spread it across paychecks; others deposit a lump sum at the start of the year. Most employers that offer an HSA put something in: 77 percent of the 726 employers in the Plan Sponsor Council of America’s 2026 HSA survey did.[3] The amount varies widely, so check your benefits guide. Your employer’s specific numbers matter more than any rule of thumb.
Here is a simplified example. Suppose your employer offers:
- PPO: $600/month family premium · $1,000 deductible · $4,500 OOP max
- HDHP: $360/month family premium · $3,500 deductible · $8,000 OOP max (qualifies under 2027 limits) · employer deposits $1,000 into the HSA
The HDHP premium is $240 per month less — $2,880 per year — and the employer deposit adds $1,000, so the HDHP starts the year $3,880 ahead. Redirect the premium savings into the HSA, add more from your paycheck, and your own $8,000 plus the employer’s $1,000 reaches the $9,000 family maximum. At a 22 percent federal bracket, your $8,000 saves about $1,760 in federal income tax.
Now run two scenarios:
Healthy year: Your family uses $900 in medical care. That is under both deductibles, so you pay about the same $900 on either plan. The HDHP still saves $2,880 in premiums, and you also get the $1,000 employer deposit and the $1,760 tax saving — roughly $5,640 ahead.
Expensive year: Someone needs surgery and your family hits the OOP max. On the PPO: $4,500 OOP + $7,200 in premiums = $11,700. On the HDHP: $8,000 OOP + $4,320 in premiums − the $1,000 employer deposit = $11,320. The HDHP comes out $380 ahead even in the worst case, and about $2,140 ahead once the tax saving is counted. With no employer deposit, the HDHP would cost $620 more on premiums and out-of-pocket — still less than the tax saving on a full contribution. And in every healthy year, the HDHP wins by thousands.
Use the health plan cost comparison calculator on ELI to model your actual plan numbers — it counts the HSA’s tax savings and any employer deposit, and its Bad year button shows each plan at its out-of-pocket maximum. The premium spread at your employer is the starting point for everything else.
“The HSA is arguably the best tax-free growth account most American families have never fully used. But it only works if you can cover your own deductible without going into debt in a bad year.”
Who Benefits Most from an HDHP and HSA
HDHPs have grown from a niche product to a mainstream option at many employers, and for good reason — they work well for a specific kind of family. Twenty-nine percent of workers with employer coverage are now enrolled in an HSA-qualified plan.[4] The combination tends to reward households that are:
- Generally healthy. Not every year, but on average, your family’s medical spending stays below or near your deductible. A few visits, a prescription or two, no hospitalizations in most years.
- Able to cover the deductible in cash. This is non-negotiable. The HDHP is only a sound strategy if a $3,500 bill would not require a credit card. That buffer can come from the HSA itself once it has been funded for a year or two.
- Receiving an employer HSA deposit. As in the example above, an employer deposit is money the PPO does not give you. It lowers your effective deductible before you spend a dollar of your own.
- In a meaningful tax bracket. The upfront deduction is worth more at higher marginal rates. At 22–24 percent federal plus most state rates, the tax savings on a full family contribution are substantial.
- Building long-term savings. If you can consistently leave HSA funds invested and pay routine care out of pocket, the account works as a long-term, tax-free growth account with better tax treatment than most alternatives.
When to Think Twice About the HDHP
The HDHP and HSA strategy gets complicated under certain conditions. Consider staying on a traditional plan if:
- Your family has predictable high spending each year. Chronic conditions, regular specialist visits, or high-cost prescriptions that reliably push you past the deductible every year can make a PPO’s lower deductible and fixed copays a better deal. Do the math with your actual spending history, not an optimistic projection.
- Your employer’s premium spread is small. If the difference between the HDHP and the PPO premium is less than $100–$150 per month for a family, the savings often do not justify the higher deductible risk, especially if your employer does not fund the HSA.
- You cannot fund the HSA meaningfully. An empty or minimally funded HSA offers no liquidity benefit when a medical event hits. The tax deduction alone does not compensate for holding a high-deductible plan without the account to back it up.
- Someone on your plan is mid-treatment. If a family member is pregnant, newly diagnosed with a significant condition, or partway through ongoing care, switching to a high deductible mid-treatment can sharply increase your out-of-pocket spending in the first year. In those cases, finishing the year on the existing plan often makes more sense.
The insurance basics page on ELI walks through deductibles, coinsurance, copays, and network types if any of those terms need a plain-language refresh before you compare plans.
What to Do Before Open Enrollment Closes
If you have not made the call yet, these five steps tend to resolve it:
- Get the actual plan documents. Your employer is required to provide a Summary of Benefits and Coverage (SBC) for each option. If you do not have yours, ask HR or your benefits portal before the window closes. Do not compare plans from memory.
- Run your last two years of medical spending. Pull your Explanation of Benefits statements or ask your current insurer for a summary. How close did you come to your deductible each year? If you cleared it reliably, a higher deductible may cost you more in practice.
- Check whether your employer funds the HSA. An employer contribution of $1,000 toward a family HDHP effectively reduces your out-of-pocket deductible by that amount. It is a benefit that only flows to employees who pick the HDHP.
- Model the annual premium difference. Rate sheets often quote premiums per paycheck, so multiply the per-paycheck gap by the number of paychecks it comes out of — 26 for biweekly pay — or a monthly gap by 12. That number is your starting point for what you could contribute to the HSA and still break even on the premium side before a medical event.
- Confirm your providers are in-network. HDHPs sometimes carry narrower provider networks than traditional plans. Verify that your pediatrician, primary care doctor, OB-GYN, and any specialists your family sees regularly are covered under the HDHP before switching.
If you are already in an HDHP and have not been maximizing the HSA contribution, open enrollment is a useful moment to revisit your election. The HSA contribution tracker on ELI can help you see how much room you have left in the current year and plan for 2027.
Common Questions
Can I contribute to an HSA if my spouse has a different health plan?
You can contribute as long as you are enrolled in a qualifying HDHP and are not covered by any non-HDHP health plan — including through your spouse’s employer. If your spouse has a family PPO that lists you as a covered dependent, that dual coverage generally disqualifies you from HSA contributions for the months you hold both plans. The rules are set out in IRS Publication 969, and the nuances matter; if you are in this situation it is worth reading the eligibility section carefully.[2]
What happens to my HSA balance if I switch back to a PPO next year?
Your HSA balance stays yours permanently. You can still pay qualified medical expenses from it tax-free and leave the investments to grow. You simply cannot make new contributions for any month in which you are not enrolled in a qualifying HDHP. There is no “use it or lose it” rule — old balances never expire and are never forfeited.
Does my employer’s HSA contribution count against my annual limit?
Yes. The IRS annual cap applies to total contributions from all sources — your payroll deferrals, any lump-sum deposits you make, and your employer’s contribution combined. If your employer deposits $1,000 into your family HSA in 2027, your personal contribution room for the year is $8,000 (the $9,000 limit minus the $1,000 already there).[1]
Can I use my HSA to pay for my children’s medical expenses?
Yes, for your spouse and anyone you claim as a dependent on your federal return. Watch the gap between the two sets of rules: your health plan can cover adult children up to age 26, but your HSA can pay their bills tax-free only if they still qualify as your tax dependent. An adult child who no longer qualifies stays on your insurance but falls outside your HSA.[2]
The Bottom Line
The 2027 HSA contribution limits give families with qualifying HDHPs $9,000 in annual tax-advantaged room — $250 more than 2026, and on top of whatever you put in a 401(k). Whether that benefit is worth the higher deductible depends entirely on your family’s health spending patterns, your ability to cover the deductible in cash, and the premium spread your employer is offering this fall.
Run the math on your specific plans before the enrollment window closes. In most years, for a family without chronic high medical spending, the HDHP wins on total cost. The strategy only breaks down if you cannot fund the HSA meaningfully or cannot absorb the deductible without going into debt.
If you have held an HSA for several years and kept it invested, it is probably your best-performing tax shelter. If you are starting fresh this fall, the year of maximum benefit is the first year you put the premium savings to work.
