Why Letting Your Marketplace Plan Auto-Renew Can Cost You

Auto-renewal keeps you covered, but it doesn’t keep your coverage the same. For 2027 especially, a plan you never re-check could have a different price, a different subsidy, different doctors or a different insurer altogether. A 10-minute review before the December 15 HealthCare.gov deadline is usually enough to catch the problems.

What auto-renewal actually does

If you’re enrolled in a Marketplace plan and don’t make a choice during open enrollment, the Marketplace generally re-enrolls you for the next year. If your plan still exists, you stay in it. If your plan is being discontinued, you’re moved into another plan, often with the same insurer if it still offers coverage in your area, and sometimes with a different one.

That’s a safety net, and it’s better than a coverage gap. But it’s built to keep you insured, not to keep your costs low or your doctors in network. Nobody checks whether the plan still fits your life. That part is up to you.

Discontinued plans and algorithm “crosswalks”

When a plan goes away, the Marketplace uses a set of rules, often called a crosswalk, to map you to a replacement. It looks at things like the insurer, the metal level and the product type. It doesn’t look at your doctors, your prescriptions or your budget.

This matters more for 2027 than usual, because insurers are exiting the Marketplace in more than 20 states. If your insurer is leaving, you’ll get a discontinuation notice, and the replacement plan could be with a company you’ve never used, with a different network and drug list.

Your subsidy may be different, even if your plan isn’t

Your premium tax credit is recalculated for each year based on your projected income and the price of the benchmark plan, the second-lowest-cost Silver plan in your area. Several things can shift it for 2027:

• The enhanced subsidies expired after 2025. Many people will get less help in 2027 than they did before, and some higher earners won’t qualify at all.
• Premiums are rising. healthinsurance.org reports a median proposed 2027 increase of roughly 15% for individual plans, with wide variation by state. If you get a subsidy, part of the increase may be absorbed for you. If you don’t, you pay all of it.
• The benchmark can change. If a cheaper Silver plan enters your area, your subsidy can shrink even if your own plan’s price barely changed.
• Some state help is new. Rhode Island and Virginia (through its Virginia Premium Savings program for roughly 138–250% of the federal poverty level) are partly filling the gap with state money. Other states may not be.

Our guide to Bronze + HSA vs. Silver explains how the benchmark affects which metal level gives you the most value.

Networks and drug lists change quietly

Even when you keep the same plan, its provider network and drug list (formulary) can change for the new year. A doctor might leave the network. A medication might move to a more expensive tier, need prior authorization or be dropped. These changes are usually listed in the plan documents for the new year, but they’re easy to miss if you don’t look.

If you see a specialist regularly or take ongoing prescriptions, this is the most important thing to check. A plan that’s $30 a month cheaper doesn’t save you anything if your main medication isn’t covered.

Income updates and reconciliation at tax time

When you auto-renew, the Marketplace may use income information from your previous application or from tax data. If your income has changed (a raise, a new job, freelance work, a partner moving in), the subsidy you get each month could be too high or too low.

At tax time, you file Form 8962 to reconcile. That means comparing the subsidy you received with what you actually qualified for based on your real income. If you got too little, you get the difference back. If you got too much, you repay it.

Freelancers and people with variable income should be especially careful. If you’re between jobs or just left one, our guides on insurance when you quit and switching jobs cover the transitions.

Your 10-minute review checklist

Do this during open enrollment, which runs from November 1 to December 15, 2026 on HealthCare.gov. If you’re in a state-run exchange, check its dates.

• Read your notices. Look for a renewal notice or a discontinuation letter. If your plan is ending, plan to pick a new one yourself.
• Log in and update your application. Enter your best 2027 income estimate and any household changes (marriage, a new baby, someone moving in or out).
• Check your new net premium. Compare your 2027 monthly cost after subsidy with what you pay now.
• Confirm your doctors. Search each provider in the plan’s 2027 directory, and call the office to double-check if it matters a lot.
• Confirm your prescriptions. Look up each drug on the 2027 formulary and note the tier and any prior authorization rules.
• Compare deductible and out-of-pocket maximum. The 2027 federal ceiling is $12,000 for self-only coverage. Your plan may be lower, but check that it didn’t go up.
• Look at one or two alternatives. Check at least one other plan at a different metal level. All Marketplace Bronze plans are HSA-eligible in 2027, which might change your math.
• Decide, and actually click enroll. If you’re staying, confirm. If you’re switching, finish before the deadline and pay your first premium.

Want a structured way to compare? Use our plan comparison worksheet, and run your top choices through the worst-case cost calculator.

When auto-renewal is fine

Auto-renewal isn’t automatically bad. It may be fine if your plan isn’t being discontinued, your income and household haven’t changed, your doctors and prescriptions are still covered, and your new net premium is acceptable after you’ve compared it with a couple of alternatives. The point is to make it a decision instead of a default.

This article is general education. For help with your situation, contact a free certified Marketplace assister, a licensed agent or a tax professional.

Frequently asked questions