ACA Open Enrollment: Dates, Real Costs, and Free Help You Didn't Know Existed (Current Updated Guide)

Last reviewed: September 2026, for the current enrollment cycle. This post is updated each year, always confirm exact current dates at healthcare.gov before making decisions.

There's a specific kind of dread that comes with opening a healthcare renewal notice, that sinking feeling before you even see the number, bracing for it to be worse than last year. If that's you right now, I need to tell you something honest before anything else in this post: some years, it genuinely is worse. But there's also real, free help available that most people never think to use, and that's exactly what this post is for.

Before I proceed, take note of the important information below for this cycle.

Mark these dates down now (for current enrollment cycle)

Open Enrollment for 2027 Marketplace coverage runs November 1, 2026 through January 15, 2027 on HealthCare.gov, the federal marketplace used by 38 states plus DC.

One thing worth knowing upfront about this particular cycle: there's ongoing legal back-and-forth over whether the federal window might get shortened. A rule attempting to move the deadline earlier got struck down in court in mid-2026, but it could still be appealed. Because of that, December 15 is the one date safe to build your plan around regardless of how it resolves.

Let me now give a breakdown of the full details.

How Open Enrollment actually works, every year

Open Enrollment for Marketplace coverage typically runs November 1 through January 15 each year on HealthCare.gov, the federal marketplace used by most states. Exact dates can shift slightly year to year based on policy changes, which is why I flagged the current cycle's specific dates above, but this window is the general pattern to expect annually.

The date that actually matters most, every single year, is the mid-December cutoff. Enroll by that date and your coverage starts January 1. Miss it, and enroll in the back half of the window instead, and your coverage doesn't start until February 1, a full extra month with a gap or your old plan, neither of which is ideal.

If you live in a state with its own exchange rather than the federal marketplace, your deadline may run later. Some state exchanges extend their windows by a couple of weeks beyond the federal dates. New York, for example, typically extends its window through January 31. So always check your specific state's marketplace directly.

How subsidies actually work

Premium tax credits (the subsidies that lower your monthly cost) are generally available if your household income falls within a specific range relative to the federal poverty level. This is the evergreen mechanic. What changes year to year is exactly where that range sits and how generous the assistance is within it.

The honest, current-cycle reality: temporarily enhanced subsidies that ran from 2021 through 2025 expired at the end of 2025, and Congress did not extend them. That means the original subsidy structure is back in effect for this cycle, which is genuinely less generous than what many people got used to over the past several years.

Premium tax credits are currently only available between 100% and 400% of the federal poverty level. Above 400% FPL, there's currently no premium tax credit at all. For a household of two, that 400% threshold sits at roughly $86,400 this cycle.

On top of that, insurers have proposed a median premium increase of about 15% nationally for this cycle, closer to 13% in Texas specifically, and several carriers, including Cigna, are exiting certain markets entirely.

I'm telling you this plainly because I'd rather you walk in prepared than blindsided, and because subsidy rules are exactly the kind of thing that can change again in future years, so don't assume this cycle's numbers automatically apply next time you're reading this.

What's reliably true, no matter the year

A few things aren't tied to the open enrollment window or to shifting subsidy rules at all.

Medicaid and CHIP enrollment is open year-round. If your income is below the poverty level and you live in a Medicaid expansion state, you may qualify for free or low-cost coverage through Medicaid at any point in the year, not just during open enrollment.

Special Enrollment Periods exist outside the normal window too. A qualifying life event, losing other coverage, getting married, having a baby, moving to a new state, gives you 60 days to enroll even if it falls outside the usual dates.

The free resource most people don't know exists

This is the part I actually want you to walk away with, and it's true every single year regardless of what subsidies or deadlines look like.

ACA Navigators, sometimes called Assisters or Certified Application Counselors, are trained and federally certified specifically to help you enroll, completely free, at zero cost to you. The important distinction: unlike insurance agents and brokers, Navigators are not paid by insurance companies and have zero financial stake in which plan you choose. Their only job is helping you understand your actual options.

Find one near you at LocalHelp.HealthCare.gov, or call the Marketplace Call Center directly at 800-318-2596, available every single day.

One honest heads-up: Navigator programs have lost significant federal funding in recent years, and some state programs have lost as much as 85% of their previous funding. That means wait times for an appointment can run longer than you'd expect. Don't wait until the final week of the enrollment window to seek help. Start early, every year.

How to actually approach this, any year you're reading it

Start with HealthCare.gov itself, even if you assume you won't qualify for a subsidy. The only way to know your real number is to actually apply and see it calculated for your specific situation and the current year's rules. If the process feels confusing or overwhelming, use a free Navigator before you use a paid broker, you'll get unbiased help either way, without anyone steering you toward a plan that benefits them financially.

Apply directly at healthcare.gov

If you're stacking every available resource this season, 7 Verified Resources for Single Parents Who Need Real Financial Help pairs well with this, since healthcare costs and general financial assistance often go hand in hand.

Next: Realistic Budget Plan for Single Moms Stretching Every Dollar

Enrollment dates, subsidy rules, and program details in this post reflect the most current, verified information available as of the last review date noted at the top. Marketplace rules, deadlines, and funding levels change from year to year and are subject to ongoing policy shifts and litigation. Always confirm current details directly at healthcare.gov or your state's marketplace before making enrollment decisions.