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Hey, Americans and people living in the US going through open enrollment on the state ACA marketplaces who haven't yet enrolled in a plan for 2026!
Just about every state in the union and DC (but not Idaho) proudly touts an end date to open enrollment sometime in January. This year for most states it ends January 15th, but in CA, NJ, NY, RI, and DC, it's January 31st, and here in Massachusetts, it's January 23rd. (Idaho's is December 15th.) [Source]
That sure sounds like the deadline is sometime in January.
No, it kinda isn't.
I mean, sure, you absolutely can sign up for a 2026 health plan in January. They'll let you do that.
It's just that the marketplaces don't generally issue health plans retroactively. Like approximately never. So if you want your health plan to start January 1st, you certainly can't sign up for it after January 1st.
And marketplace plans always start on the first of a month.
So if you sign up after January 1st, you should expect your health plan will have a start date of February 1st.
But that doesn't mean you can wait to December 31st to get a plan that starts January 1st, either.
Most states (all of 'em?) have some other deadline for signing up for a plan, if you want it to, you know, start January 1st so you don't spend the month of January uninsured.
And the don't necessary do a great job getting the word out of just when that deadline is. (Massachusetts has only recently started fixing this on their website, presumably due to a lot of people getting really screwed by missing the enrollment deadline and then having an expensive health crisis in January.)
For states that use the Federal marketplace, healthcare.gov, the enrollment deadline is December 15th for a plan that starts January 1st. States that run their own marketplaces can have other deadlines. (Massachusetts' deadline is December 23rd.)
This means that, completely regardless of when your state marketplace's end of open enrollment is, if you want your new insurance plan to start the day after your 2025 one turns into a pumpkin so there isn't a month long covage gap, the actual enrollment deadline is sometime in December. Probably December 15th.
That's the first often poorly publicized deadline.
The second unobvious deadline has to do with the fact that enrollment is not necessarily all you have to do to get your new insurance to turn on on January 1st.
Reasonably enough, the insurance company for your new plan may require that you pay them first. Which means if you want your health plan to actually start January 1st, you may be responsible for paying them before then. In fact, in addition to the enrollment deadline, there may also be a payment deadline sometime in December. It may be the same day as the sign-up deadline.
Absent official information from your state marketplace or the insurance company involved, assume the payment deadline is also December 15th.
And! Some state marketplaces aren't necessarily great about sending out bills in a timely manner. (Looking at you Massachusetts.) If you sign up for your new plan too close to the enrollment deadline and wait for them to bill you before you pay, you may miss the payment deadline waiting on that bill. Paper bills take time to be delivered in the mail, especially near Christmas; email bills get stuck in spam filters. If you pick a plan and enroll December 14th, how sure are you that you'll get your bill in the next 24 hours?
And then there's the fact that payment isn't necessarily instantaneous. You want to give yourself (or your bank) a little time to get the money to them.
My advice is, first, you might want to consider the actual enrollment deadline December 8th. To give yourself time to figure out how to pay them and get the money to them.
Second, given that it's now December, I recommend that you don't wait for a bill: as soon as you enroll in a plan, figure out how to pay the insurance company, and, if at all possible, pay them, paying before you're billed so you don't miss the payment due date.
If your state uses the Federal marketplace, it tells me you have to contact the insurance company directly, because they don't handle payments. States that have their own marketplaces sometimes have their marketplace website handle payment, which will make it easier. (Massachusetts' does.)
If your marketplace doesn't handle payment, you will have to go to the website for the insurance company, itself – not the marketplace website – and try to figure out how to pay the bill. You may have to call them on the phone. Be prepared to read somebody your credit card number over the phone, because you can't assume that you will have time to mail them a check, and your bank's bill pay service might not be able to turn it around fast enough, if you are cutting it close enough.
Am I suggesting you pay a bill before you even get it and see how much you owe? Yes, that is exactly what I'm saying. Whatever you were quoted for the premium when you picked that plan and enrolled in it, get them that amount of money without being asked if there's any chance the request will come in after the due date.
What I am saying is, don't for a moment think, "Surely they wouldn't be so unreasonable as to hold me responsible for meeting a deadline they haven't told me about or for paying a bill before they get it to me." Sure they would. Trust me, they absolutely would. And do.
This post brought to you by the 220 readers who funded my writing it – thank you all so much! You can see who they are at my Patreon page. If you're not one of them, and would be willing to chip in so I can write more things like this, please do so there.
Please leave comments on the Comment Catcher comment, instead of the main body of the post – unless you are commenting to get a copy of the post sent to you in email through the notification system, then go ahead and comment on it directly. Thanks!
Hey, Americans and people living in the US going through open enrollment on the state ACA marketplaces who haven't yet enrolled in a plan for 2026!
Just about every state in the union and DC (but not Idaho) proudly touts an end date to open enrollment sometime in January. This year for most states it ends January 15th, but in CA, NJ, NY, RI, and DC, it's January 31st, and here in Massachusetts, it's January 23rd. (Idaho's is December 15th.) [Source]
That sure sounds like the deadline is sometime in January.
No, it kinda isn't.
I mean, sure, you absolutely can sign up for a 2026 health plan in January. They'll let you do that.
It's just that the marketplaces don't generally issue health plans retroactively. Like approximately never. So if you want your health plan to start January 1st, you certainly can't sign up for it after January 1st.
And marketplace plans always start on the first of a month.
So if you sign up after January 1st, you should expect your health plan will have a start date of February 1st.
But that doesn't mean you can wait to December 31st to get a plan that starts January 1st, either.
Most states (all of 'em?) have some other deadline for signing up for a plan, if you want it to, you know, start January 1st so you don't spend the month of January uninsured.
And the don't necessary do a great job getting the word out of just when that deadline is. (Massachusetts has only recently started fixing this on their website, presumably due to a lot of people getting really screwed by missing the enrollment deadline and then having an expensive health crisis in January.)
For states that use the Federal marketplace, healthcare.gov, the enrollment deadline is December 15th for a plan that starts January 1st. States that run their own marketplaces can have other deadlines. (Massachusetts' deadline is December 23rd.)
This means that, completely regardless of when your state marketplace's end of open enrollment is, if you want your new insurance plan to start the day after your 2025 one turns into a pumpkin so there isn't a month long covage gap, the actual enrollment deadline is sometime in December. Probably December 15th.
That's the first often poorly publicized deadline.
The second unobvious deadline has to do with the fact that enrollment is not necessarily all you have to do to get your new insurance to turn on on January 1st.
Reasonably enough, the insurance company for your new plan may require that you pay them first. Which means if you want your health plan to actually start January 1st, you may be responsible for paying them before then. In fact, in addition to the enrollment deadline, there may also be a payment deadline sometime in December. It may be the same day as the sign-up deadline.
Absent official information from your state marketplace or the insurance company involved, assume the payment deadline is also December 15th.
And! Some state marketplaces aren't necessarily great about sending out bills in a timely manner. (Looking at you Massachusetts.) If you sign up for your new plan too close to the enrollment deadline and wait for them to bill you before you pay, you may miss the payment deadline waiting on that bill. Paper bills take time to be delivered in the mail, especially near Christmas; email bills get stuck in spam filters. If you pick a plan and enroll December 14th, how sure are you that you'll get your bill in the next 24 hours?
And then there's the fact that payment isn't necessarily instantaneous. You want to give yourself (or your bank) a little time to get the money to them.
My advice is, first, you might want to consider the actual enrollment deadline December 8th. To give yourself time to figure out how to pay them and get the money to them.
Second, given that it's now December, I recommend that you don't wait for a bill: as soon as you enroll in a plan, figure out how to pay the insurance company, and, if at all possible, pay them, paying before you're billed so you don't miss the payment due date.
If your state uses the Federal marketplace, it tells me you have to contact the insurance company directly, because they don't handle payments. States that have their own marketplaces sometimes have their marketplace website handle payment, which will make it easier. (Massachusetts' does.)
If your marketplace doesn't handle payment, you will have to go to the website for the insurance company, itself – not the marketplace website – and try to figure out how to pay the bill. You may have to call them on the phone. Be prepared to read somebody your credit card number over the phone, because you can't assume that you will have time to mail them a check, and your bank's bill pay service might not be able to turn it around fast enough, if you are cutting it close enough.
Am I suggesting you pay a bill before you even get it and see how much you owe? Yes, that is exactly what I'm saying. Whatever you were quoted for the premium when you picked that plan and enrolled in it, get them that amount of money without being asked if there's any chance the request will come in after the due date.
What I am saying is, don't for a moment think, "Surely they wouldn't be so unreasonable as to hold me responsible for meeting a deadline they haven't told me about or for paying a bill before they get it to me." Sure they would. Trust me, they absolutely would. And do.
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Link for sharing: https://siderea.dreamwidth.org/1888828.html
This post brought to you by the 220 readers who funded my writing it – thank you all so much! You can see who they are at my Patreon page. If you're not one of them, and would be willing to chip in so I can write more things like this, please do so there.
Please leave comments on the Comment Catcher comment, instead of the main body of the post – unless you are commenting to get a copy of the post sent to you in email through the notification system, then go ahead and comment on it directly. Thanks!
Comment Catcher: Choosing Health Insurance: Two Unobvious Marketplace Deadlines
Date: 2025-12-01 11:28 am (UTC)Re: Comment Catcher: Choosing Health Insurance: Two Unobvious Marketplace Deadlines
Date: 2025-12-01 03:51 pm (UTC)The other set of open enrollment deadlines is for Medicare. That’s December 7th, unless you have a “special election period” that gives you another couple of months.
Missing the Medicare deadline is unlikely to leave a person completely uninsured, but it can laave you without prescription drug coverage, and/or at risk of large bills if you get sick. I just finished wading through those choices, and the less-than-clear rules for “Medigap” supplemental insurance options. The federal Medicare,gov website helpfully tells me how it works, unless you live in one of a few specific states, including Massachusetts, and invited me to contact my state insurance commissioner for information.
Re: Comment Catcher: Choosing Health Insurance: Two Unobvious Marketplace Deadlines
Date: 2025-12-08 04:29 am (UTC)I like my job because I get to help people, but I am fully aware that I am helping people retail in a system that is very dysfunctional wholesale and would far rather we had a functional system.
Re: Comment Catcher: Choosing Health Insurance: Two Unobvious Marketplace Deadlines
Date: 2025-12-02 01:46 am (UTC)Owing to the OBBBA, quite a few low income families who were eligible for subsidies are no longer eligible for 2026 because their income is too low. Practically speaking, this only affects adult legal residents who haven’t hit the 5 year bar; but it’s still cruel.
I brought up in my data analysis class this semester that looking at household incomes of those families before and after the end of 2025 could be a natural experiment to see how many households raise their incomes enough to get those credits back. It’s interesting on the data side; regardless, it remains cruel policy.