If you’re asking why your health insurance went up, the answer for 2026 is usually a stack of reasons rather than one. Marketplace premiums rose more than 20% on average and employer plans climbed 6% to 7%, and the single biggest driver on the individual market is the expiration of enhanced federal subsidies at the end of 2025. On top of that, medical costs kept climbing, employers shifted more of the premium onto workers, and the ordinary rating factors like age, tobacco use, and geography kept doing their usual work. Most people are dealing with several of these at once.
Enhanced Marketplace Subsidies Expired
If you buy coverage through the ACA marketplace, start here. The Inflation Reduction Act had temporarily removed the income cap on premium tax credits and increased the help available at every income level. That expansion expired on December 31, 2025. For 2026, premium tax credits are again limited to households earning between 100% and 400% of the federal poverty level, and the credit amounts at every tier are smaller than they were in 2025.1Internal Revenue Service. Eligibility for the Premium Tax Credit
Practically, a single person earning more than $63,840 or a family of four earning more than $132,000 no longer qualifies for any marketplace subsidy.2U.S. Department of Health and Human Services. 2026 Poverty Guidelines Those households went from paying a capped percentage of income to paying the full unsubsidized premium overnight. Even people who still qualify are getting less help, because the formula reverted to the pre-2021 sliding scale.
Your Income Changed or Your Estimate Was Off
Premium tax credits are calculated on the income you projected when you enrolled. If your actual income rises above that estimate, your monthly subsidy shrinks going forward and you may owe money back at tax time for credits you already received.3HealthCare.gov. Premium Tax Credit – Glossary
The repayment side changed significantly for 2026. Prior years capped how much excess credit a lower-income filer had to repay. Those caps are gone. Starting with the 2026 tax year, if your advance credits exceed what you actually qualified for, you repay the full difference with no limitation.4Internal Revenue Service. Updates to Questions and Answers About the Premium Tax Credit Cross the 400% poverty threshold and you lose the credit entirely and repay every dollar advanced on your behalf that year. A raise, a spouse returning to work, or a one-time retirement account withdrawal can be enough to trigger it.
Report income changes to the marketplace as soon as they happen. That way your monthly credit adjusts in real time instead of accumulating into a tax bill.
Your Employer Shifted More Cost to You
Employers redesign benefits constantly, and even small changes hit your paycheck. The most straightforward version: the company reduced its share of the premium. If your employer covered 80% last year and now covers 70%, your deduction jumps even though the plan’s total cost barely moved. These contribution shifts often happen quietly during annual enrollment.
A bigger structural change is the move to high-deductible plans paired with health savings accounts. HDHPs carry lower monthly premiums but require you to spend more before coverage kicks in. If you weren’t expecting a several-thousand-dollar deductible after years on a lower-deductible plan, the shift stings even when the premium itself looks similar.
Employers also switch insurers, renegotiate networks, and adjust copays. A new insurer may reset rates based on your workforce’s claims history. A hospital system leaving your network can mean higher bills if you keep seeing those providers. Federal rules only require employer plans to cover at least 60% of expected medical costs to meet the minimum value standard,5Internal Revenue Service. Minimum Value and Affordability which leaves plenty of room to move cost onto employees through higher deductibles and coinsurance.
You Aged Into a Higher Rate Band
Age is one of only four factors insurers can use to price individual and small-group plans under the ACA. The others are family size, geographic area, and tobacco use.6GovInfo. 42 USC 300gg – Fair Health Insurance Premiums Federal law caps the age-based variation at 3-to-1, so the most an insurer can charge a 64-year-old is three times what it charges a 21-year-old for the same plan.7eCFR. 45 CFR Part 147 – Health Insurance Reform Requirements for the Group and Individual Health Insurance Markets
The jumps are modest through your 20s and 30s and steepen in your 50s and early 60s. On an ACA-compliant plan, the new rate takes effect at your plan’s renewal date using your age as of that date, not on your actual birthday.7eCFR. 45 CFR Part 147 – Health Insurance Reform Requirements for the Group and Individual Health Insurance Markets Short-term plans and some large-group employer plans aren’t bound by the 3-to-1 cap and can use wider age bands.
A Tobacco Surcharge Kicked In or a Discount Dropped Off
Insurers can charge tobacco users up to 50% more than non-users for the same plan.6GovInfo. 42 USC 300gg – Fair Health Insurance Premiums The surcharge covers cigarettes, cigars, chewing tobacco, and nicotine vaping products; patches and gum generally don’t count. Some states restrict or ban the surcharge entirely.
One detail catches marketplace enrollees off guard: premium tax credits do not offset the tobacco portion of the premium. If you rely on subsidies, the full surcharge comes out of your pocket.
On employer plans, the surcharge often shows up as a lost non-smoker discount or a wellness program incentive that expired. Wellness program rules let employers set a premium differential of up to 50% of the cost of employee-only coverage for tobacco-related programs.8U.S. Department of Labor. HIPAA and the Affordable Care Act Wellness Program Requirements If your status changed on your last enrollment form, or you didn’t complete a required program, that discount disappearing looks like a premium hike.
Your Plan’s Benefits or Drug Tiers Changed
Even with the same plan name, the details inside shift year to year. A common source of sticker shock: prescription drug formulary changes. If your plan moved a medication from a preferred tier to a specialty tier, your copay for that drug can jump from $40 to $200 without the overall premium changing at all. The premium can also go up on top of that if the plan added expensive new drugs to its coverage list.
Cost-sharing redesigns work the same way. Insurers can raise deductibles, adjust coinsurance percentages, or change what counts toward your out-of-pocket maximum, and the effect on what you actually pay across a year can dwarf the change in the monthly premium.
You Moved or Your Area Got More Expensive
Where you live is another permitted rating factor. Each state is divided into geographic rating areas, and all insurers in a state use the same set of areas when pricing plans.9CMS. Market Rating Reforms A plan that costs $400 in one area might cost $550 in another because of differences in hospital prices, provider availability, and local claims patterns.
You don’t have to move for this to hit you. Insurers reassess claims data within each area every year. If spending in your area spiked, your premium goes up even though nothing about your personal health changed. If you did move, the impact can be bigger: crossing into a new rating area or a new state can reset your premium entirely. Moving triggers a special enrollment period, and you generally have 60 days around your move date to select a new plan.10HealthCare.gov. Getting Health Coverage Outside Open Enrollment
You Went on COBRA
Losing a job or dropping to part-time hours often triggers eligibility for COBRA, which lets you keep your employer’s group plan. The shock is the price. While you were employed, your employer likely covered 70% to 80% of the premium. Under COBRA, you pay the entire cost yourself plus a 2% administrative fee, for up to 102% of the plan’s full premium.11Office of the Law Revision Counsel. 29 USC 1162 – Continuation Coverage If you qualify for the disability extension beyond 18 months, the premium can rise to 150% of the plan cost for those additional months.12eCFR. 26 CFR 54.4980B-8 – Paying for COBRA Continuation
The plan didn’t get more expensive. The employer subsidy just disappeared. Before defaulting to COBRA, compare a marketplace plan, especially if your income dropped enough to qualify for premium tax credits. A qualifying job loss opens a special enrollment period, so you don’t have to wait for open enrollment.
Underlying Medical Costs Keep Rising
Behind every one of the above is steady healthcare inflation. Insurers set rates based on what they expect to pay for medical services next year, so when hospital charges, drug prices, and procedure costs climb, premiums follow.
Hospital stays are a major driver. Staffing shortages from the pandemic haven’t fully resolved, and the cost of recruiting and retaining clinicians gets folded into what hospitals charge insurers. Hospital systems with market power routinely negotiate higher reimbursement rates when contracts come up for renewal, and those rates flow into your premium the next year. Brand-name and specialty medications for cancer, autoimmune conditions, and diabetes can cost tens of thousands per patient per year, and newer gene therapies push the ceiling higher. Advanced imaging, genetic testing, and outpatient procedures add cost as they become more widely available.
What to Do Next
Figure out which of the reasons above actually applies to your bill, because that determines what you can do about it. If your subsidy shrank, update your income estimate on the marketplace so your monthly credit reflects reality and you don’t face a repayment at tax time. If your employer shifted to a high-deductible plan or cut its contribution, compare the total annual cost of every option offered rather than just the monthly premium. If you’re staring at a COBRA bill, price a marketplace plan during your special enrollment window before you enroll. If you use tobacco, check whether your state limits the surcharge and whether your employer offers a cessation program that restores a discount. And if you moved, don’t assume your old plan’s price carries over: shop your new rating area.