Open enrollment for 2027 coverage opens November 1, 2026 and runs through January 15 in most states, and this year the window matters more than usual. Two things are happening at once. First, the enhanced premium tax credits that padded subsidies since 2021 expired on January 1, 2026 and are not scheduled to return for 2027 unless Congress acts — so the price you actually pay out of pocket already reset higher. Second, insurers have proposed a median 15% increase to full-price 2027 premiums on top of that. For the roughly 19 million Americans who buy their own coverage through the Marketplace — the self-employed, early retirees, gig workers, and small-business owners without an employer plan — this is less a shopping decision than a line-item in next year's budget that just grew. The good news: the biggest savings lever isn't luck, it's the handful of numbers you lock in during these ten weeks. Here's how to run them.
The three numbers that define your 2027 health budget
Before you compare a single plan, anchor on the figures that move your cost the most. The headline is the median proposed rate increase of about 15% for individual-market policies in 2027 — but that average hides a huge spread. Weighted proposed increases run under 7% in states like Vermont, Iowa, and Utah, and as high as 29% in Arizona. Where you live can triple the size of the hike you're budgeting for, so your state's number is the one that counts, not the national headline.
The second number is the out-of-pocket maximum, which rises to $12,000 for an individual in 2027, up from $10,600 in 2026 — a $1,400 jump in the worst-case ceiling on a bad health year. That figure is your true downside: in a year where you hit the max, your total spend is roughly twelve months of premiums plus $12,000. Budgeting only for the monthly premium and ignoring the deductible-and-coinsurance tail is the mistake that turns a manageable plan into a cash crunch.
The third number is the one most people never see on the price tag: your subsidy. About 87% of Marketplace enrollees received a premium tax credit heading into 2026, and that credit is what stands between the sticker price and what hits your bank account. When KFF modeled the enhanced credits lapsing, it found the average net premium payment would more than double — a 114% jump, from $888 a year in 2025 to $1,904 in 2026. That reset is already baked into what you pay now; the 2027 rate hikes stack on top of it.
Why your bill jumped even if your plan didn't change
If your coverage looks identical to last year but your payment climbed, the plan isn't the culprit — the subsidy math is. ACA premium tax credits are tied to the cost of a benchmark 'silver' plan in your area and to your estimated household income as a percentage of the federal poverty level. The enhanced credits in effect from 2021 through 2025 both deepened those subsidies and removed the old 'subsidy cliff' that cut people off entirely above 400% of the poverty line. With the enhancement gone, the cliff is effectively back and the credits are thinner, so a larger slice of the real premium lands on you.
This is also why the fix runs through your tax return, not just the insurer's website. Premium tax credits are reconciled at tax time against your actual income: estimate too low and you can owe money back when you file; estimate too high and you overpay all year and wait for a refund. In a year when the credit is smaller and the margin for error is tighter, getting your projected 2027 income right — your modified adjusted gross income, specifically — is worth real dollars. Running a clean income estimate before you enroll is the single highest-leverage thing most households skip.
Your ten-week open-enrollment checklist
- Pull up your state's actual rate change, not the 15% national median — it could be 7% or 29%, and that gap decides how aggressively you need to shop.
- Re-estimate your 2027 household income before you pick a plan; your subsidy is calculated from projected MAGI, and an outdated number from an auto-renewal can quietly cost you hundreds.
- Never passively auto-renew. Benchmark plans shift every year, and last year's bargain can become this year's overpriced holdover even with no change on your end.
- Compare total annual cost — twelve monthly premiums plus the realistic deductible and coinsurance you'd actually use — rather than ranking plans by premium alone.
- Check whether your insurer is still in your market. Carriers are exiting in more than 20 states for 2027, and a dropped plan means you must actively choose a replacement or risk a gap.
- If you're healthy and have cash reserves, price a high-deductible plan paired with an HSA; if you expect heavy usage, a higher-premium, lower-deductible plan can be cheaper on total spend.
- Mark January 15, 2027 on the calendar — in most states that's the hard deadline, and missing it generally locks you out until next year barring a qualifying life event.
The move that protects your refund
Your ACA subsidy is an advance on a tax credit, trued up when you file. If your 2027 income comes in higher than you estimated at enrollment, you may have to repay part of the credit at tax time — a surprise that can wipe out a refund. Build a realistic MAGI projection now, update it with the Marketplace mid-year if your income changes, and treat any subsidy as money you've borrowed against next April's return until the numbers are confirmed.
Where to find room in the budget
If the premium line simply won't fit, attack it from both sides. On coverage, re-shopping the benchmark silver plan is often where the subsidy stretches furthest, since credits are pegged to it; switching from a plan that drifted above the benchmark back down to it can recover part of the increase without changing your doctors in many markets. A bronze plan can zero out the premium for some subsidized buyers, but only pencils out if you can absorb the higher deductible in a bad year.
On the tax side, a health savings account remains one of the few triple-tax-advantaged tools left and the limits rose for 2027: $4,500 for individual coverage, up from $4,400, and $9,000 for a family, up from $8,750. Pairing an HSA-eligible high-deductible plan with steady contributions lets you pay medical costs with pre-tax dollars and lower your MAGI at the same time — which can nudge your subsidy up. It's the rare budgeting move that cuts two bills at once.
Finally, treat the whole decision as a cash-flow problem, not a once-a-year form. Set aside the difference between your old and new premium as a dedicated monthly line now, so the January increase doesn't land as a shock, and keep a buffer sized to at least part of that $12,000 out-of-pocket ceiling for the year health doesn't cooperate.
Health coverage is quietly becoming one of the largest controllable lines in a self-insured household's budget, and 2027 is the year that becomes impossible to ignore: thinner subsidies, a median 15% rate increase, and a $12,000 out-of-pocket ceiling all landing in the same open-enrollment window. You can't change the rate tables, but you control the two numbers that decide what you actually pay — the plan you choose and the income you project. Before you enroll, run a clean estimate of your 2027 income and the taxes around it so your subsidy is sized right and April holds no surprises; our Income Tax Estimator is a fast way to pressure-test the MAGI figure your subsidy depends on. Ten minutes now is worth more than any plan-comparison tool once the deadline passes.
