Open enrollment for 2024 ACA coverage: what to expect

Open enrollment for 2024 ACA-compliant individual/family health coverage is underway – starting Nov. 1, 2023 and continuing through Jan. 15, 2024 in most states.

Millions of Americans will enroll or renew their coverage for 2024 during open enrollment. Some have been buying their own health insurance for years, while others are fairly new to the process. And some are currently uninsured or have been covered by plans that aren’t ACA-compliant – such asa  healthcare sharing ministry plan or short-term health insurance.

This article will give you an overview of what to expect during the open enrollment period. For even more information about open enrollment, check out our comprehensive guide to open enrollment.

ACA open enrollment will look mostly familiar this fall

In general, this year’s open enrollment period will be fairly similar to last year’s, but with some changes that we’ll address in more detail below:

Each state will continue to use the same health insurance marketplace platform it used last fall ( in 33 states, and a state-run platform in DC and the other 17 states). And most states will continue to use the same enrollment schedule they used last year.
The Inflation Reduction Act has extended the American Rescue Plan’s subsidy enhancements through 2025, so the subsidy rules that were in effect for 2023 will continue to be in effect for 2024. (There’s no “subsidy cliff” and the percentage of income that you have to pay for the benchmark plan is lower than it used to be.)
Because the subsidy enhancements have been extended, the record-high enrollment we saw this year is likely to continue, and the improved affordability that the American Rescue Plan created will also continue. But that doesn’t mean your premium will stay the same — more on this below.
Brokers and Navigators will continue to provide assistance with enrollment. And Navigator funding is higher than ever before, in an effort to increase outreach and enrollment assistance.
The insurers offering health plans through the exchanges (and outside the exchanges) will generally be the same insurers that offered plans for 2023. But there are several insurers joining the exchange or expanding their coverage area for 2024, and some insurers that are shrinking their coverage areas or leaving the market altogether.
The IRS has finalized a fix for the “family glitch” which will make some families newly eligible for premium subsidies in the marketplace.
Standardized plans are returning to Standardized plans were optional for insurers to offer in 2017 and 2018, but the federal government no longer created standardized plan designs as of 2019. For 2024, standardized plans are once again available through (they are labeled with a green tag that says “easy pricing”). And they’re no longer optional; insurers are required to offer them.

What are the open enrollment deadlines for 2024 plans?

By now, most people are accustomed to the fact that individual/family health coverage is no longer available for purchase year-round, and instead uses open enrollment and special enrollment periods, similar to those used for employer-sponsored plans. The same open enrollment schedules apply to plans purchased through the exchange/marketplace and to plans purchased from insurance companies through private channels (ie, “off-exchange”).

Open enrollment begins November 1, and in nearly every state, it will continue through at least January 15. (Note that Idaho is an exception: Open enrollment in Idaho starts and ends earlier, running from October 15 to December 15. Idaho is the only state where open enrollment for 2024 coverage will end before the start of the year.)

So in most states, the enrollment schedule will follow the same timeframe that was used last year. And in most states, you’ll need to enroll by December 15 in order to have your coverage take effect on January 1. Enrolling after December 15 will generally result in a February 1 effective date.

One caveat to keep in mind: If your current health plan is terminating at the end of 2023 and not available for renewal, you can select a new plan as late as December 31 and still have it take effect January 1.

Although open enrollment continues through at least mid-January in most states, it’s generally in your best interest to finalize your plan selection in time to have the coverage in force on January 1.

In most states, that means you’ll need to enroll or make a plan change by December 15. In terms of the effective date of your coverage, there’s no difference between enrolling on November 1 versus December 15. But waiting until the last minute might feel a bit more stressful, and you might have trouble finding an enrollment assister who can help you at that point. You don’t need to be the first person in line, but it’s good to give yourself a bit of wiggle room in case you run into glitches with the enrollment process or find that you’d like assistance with some or all of it.

Rest assured, however, that open enrollment continues until at least mid-January in most states. So if there’s no way for you to get signed up in the earlier part of the enrollment window, you can most likely complete the process after the start of the year and have coverage in effect as of February.

Insurers entering and leaving individual and family markets

As is always the case, there will be some fluctuation in terms of which insurers offer individual/family health coverage for 2024. For the last several years, the general trend has been toward increased insurer participation in the exchanges. Here’s more about what we saw in 2020, 2021, 2022 and 2023.)

That trend is continuing in 2024, with new insurers joining (or rejoining) the exchanges in many states. But there are also some significant insurer exits that existing enrollees need to be aware of.

Several insurers are joining exchanges in the following states for 2024:

Ambetter/Celtic (Alabama)
Cigna (Texas, Indiana, and South Carolina)
Ascension Personalized Care (Tennessee, and Texas)
Aetna (Delaware, California, Illinois, New Jersey)
UnitedHealthcare (Kansas, Mississippi, Missouri, Ohio)
AmeriHealth (Delaware and Florida)
Taro Health (Maine)
Blue Cross Blue Shield of Nebraska (Nebraska)
Moda Health (Idaho)
Luke’s Health Plan (Idaho)
CareSource (North Carolina)
Imperial Insurance Companies (Texas and Arizona)
Select Health of South Carolina (South Carolina)
Wellmark Blue Cross and Blue Shield of South Dakota (South Dakota)

But there are also some insurers exiting the marketplaces in several states, including:

Oscar Health (Exiting Arkansas and Colorado, but offering coverage in 19 other states.)
Bright HealthCare (Exiting the individual/family market in all 17 states where they currently offer these plans, resulting in approximately a million exchange enrollees needing to select new plans; previously, Bright has planned to exit six states and remain in 11 other states, but that changed as of October 2022, when they announced a full exit from the individual market. Anyone with an individual/family plan from Bright Health — in any state — will need to switch to a different insurer for 2024. The plans are branded as Bright HealthCare in most states, but True Health New Mexico is also Bright HealthCare and will not be available for 2024.)
WPS Health Plan Inc. is exiting the on-exchange market in Wisconsin, but will continue to offer off-exchange plans.
Friday Health Plans is exiting the individual/family market in Texas and New Mexico, but will continue to offer coverage in five other states.

Even in states where the participating 2024 insurers will be the same ones that offered coverage in 2023, there may be service area changes in some states. This could result in an insurer’s plans becoming newly available in some areas, or no longer available in some areas.

Last year, we detailed the things that people need to keep in mind if a new insurer is joining the exchange. All of those points are still applicable for people in areas where new insurers will offer plans in 2024.

The main takeaway point is that it’s important to actively compare your available plan options, as opposed to just letting your existing plan auto-renew. One of the new plans (or another existing plan) might end up being a better fit for your needs. But it’s also possible that the benchmark plan’s pricing could change significantly, affecting the amount of your subsidy. If the price of your current plan shoots up, a comparable plan will likely be available for about what you paid this year (if your income and family size haven’t changed).

It’s also worth keeping in mind that the insurer’s estimate of what you’re likely to pay in the coming year, provided in a letter this fall, may be inaccurate – again, because of a shift in its pricing relationship to this year’s benchmark plan. You’ll get a separate letter from the exchange with details about your subsidy amount for 2024 and the amount you’ll pay if you let your current plan renew. But it’s also essential to log onto the exchange, update your information, and learn what your current plan and alternative plans will cost in 2024.

Who will be helped by the ‘family glitch fix’?

Ever since ACA-compliant plans debuted in the fall of 2013, people have been ineligible for subsidies if they’re eligible for an employer-sponsored health plan that’s considered affordable. And the affordability determination has always been based on the cost of employee-only coverage, without taking into account the cost to add family members to the plan. But if the employer-sponsored plan was deemed affordable, the entire family was ineligible for subsidies in the marketplace, as long as they were eligible to be added to the employer’s plan. This is known as the “family glitch,” and it has put affordable health coverage out of reach for millions of Americans over the years.

Earlier this year, the IRS proposed a long-awaited fix for the family glitch, which was finalized a few weeks prior to the start of open enrollment. Under the new rules, the marketplace will do two separate affordability determinations when a family has access to an employer’s plan: one for the employee, and one for total family coverage. If the employee’s coverage is considered affordable but the family’s is not, the rest of the family will potentially be eligible for subsidies in the marketplace.

Some families will still find that they prefer to use the employer’s plan, despite the cost. But some will find that it’s beneficial to put some or all of the family members on a marketplace plan, even while the employee continues to have employer-sponsored coverage.

The main point to keep in mind here is that it’s important to double-check your marketplace options during open enrollment – even if you looked in the past and weren’t eligible for subsidies due to an offer of employer-sponsored coverage.

How are ACA premiums changing for 2024?

The only way to know for sure what your 2024 premium will be is to watch for correspondence from your insurer and exchange. They will notify you this fall about changes to your plan for 2024, including the new premium (and subsidy amount if you’re subsidy-eligible; most people are).

There’s a lot of variation from one plan to another in terms of pricing changes, and your net (after-subsidy) premium will also depend on how much your subsidy changes for 2024. But here’s a general overview of what to keep in mind:

Across most of the states, the overall weighted average rate change for 2024 amounts to a 6.2% increase, according to ACA Signups. Final rates have generally been a bit lower than the insurers proposed. (This is partly due to the Inflation Reduction Act — which was enacted after insurers filed their rates and which will result in slightly smaller-than-proposed rate increases for some plans — and partly due to state regulators’ actions to reduce rates during the review process).
That’s a little larger than the overall average rate increases we’ve seen for the last few years (3.5% for 2022, less than 1% for 2021, and a slight decrease for 2020). But an overall average rate change only gives us a big picture; it doesn’t tell you how much your own plan’s premium will change or how much your net premium will change, and it also doesn’t account for the new plans that will be offered for 2024.
Across all states that use, the average benchmark (second-lowest-cost Silver plan) premium is increasing by 4% for 2024. in your area goes up, subsidy amounts will also go up. Conversely, if the benchmark premium goes down, subsidy amounts will also go down. This is independent of what your own plan’s price does. It can be possible, for example, for your plan’s premium to go up while the benchmark premium goes down (perhaps because a new insurer takes over the benchmark spot), resulting in a more significant increase in the actual amount you pay each month. This is why it’s so important to pay close attention to the information you receive from your insurer and the exchange, and to carefully consider all of your options during open enrollment.

As open enrollment draws closer, we’ll continue to update our open enrollment guide and our overview of each state’s health insurance marketplace.

You can start doing your plan shopping research now

If you already have marketplace coverage, keep an eye out for correspondence from the marketplace and your insurer. If you currently have off-exchange coverage, be sure to check your eligibility for subsidies in the marketplace; you might find that you can get a much better value by switching to a plan offered through the marketplace.

And if you’re currently uninsured or enrolled in non-ACA-compliant coverage, you’ll definitely want to look at the plan options that are available to you during open enrollment, and check your eligibility for subsidies. You might be surprised to see how affordable your coverage can be. The average enrollee is paying $133/month this year, and more than a quarter of enrollees are paying less than $10/month. Although specific plan prices change from one year to the next, this same overall level of affordability will continue in 2024.


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