
If you have dental insurance and treatment you have been putting off, the next few weeks matter more than you might think.
Most dental plans run on a calendar year. On January 1, whatever portion of your annual maximum you have not used disappears — it does not roll over, and you do not get credit for it. Your deductible resets too, which means money you already paid toward it this year stops counting.
That is not a reason to rush into treatment you do not need. It is a reason to find out where you stand, so you are making the decision deliberately instead of discovering in February that you left something on the table.
Four separate things, and they are easy to confuse with each other.
Your annual maximum. The most your plan will pay toward your care in a calendar year. Whatever you have not used is gone on January 1 — dental plans, unlike medical ones, almost never roll it forward. If your plan has paid out very little this year and you have treatment pending, this is the number that matters most.
Your deductible. The amount you pay out of pocket before your plan starts contributing. If you have already met it this year, additional treatment before December 31 is covered at your plan's regular rate. Wait until January and you start paying that deductible over again from zero.
Your premiums. You have paid for coverage every month this year whether or not you used it. That money does not come back.
Your FSA balance. If you have a flexible spending account through work, most plans are use-it-or-lose-it at year end, though some employers offer a short grace period or allow a limited carryover. Worth checking which yours does, because the deadline may be sooner than you think.
What does not reset: frequency limitations that run on a rolling basis rather than a calendar year. Some plans limit certain procedures to once every 24 or 36 months counted from the date of service, not by calendar year. Those do not refresh January 1, which is one reason to check specifics rather than assume.
Not everyone needs to do anything before December 31. Here is the honest filter.
It matters quite a bit if:
It matters less if:
A situation worth naming. If you are mid-treatment and have hit your maximum, the sequencing goes the other way: finishing in January means the remaining work draws on a fresh year's benefits. That is a real planning opportunity, and it is the opposite of rushing.
The point is to know which of these you are in.
This takes about ten minutes and it is worth doing even if you conclude nothing needs to happen.
Call your dental office. The fastest route. We can look up your remaining benefits and tell you what any pending treatment would cost you. If you have a treatment plan on file, we can tell you specifically what finishing it this year versus next would look like.
Or check your insurer's portal. Most carriers show your annual maximum, how much has been used, and your deductible status. Log in and look for a benefits summary or claims history.
Or call the number on your card and ask for your remaining annual maximum and whether your deductible has been met.
The four numbers you want:
If you have a treatment plan with us already, call and we will tell you where you stand. If treatment was recommended elsewhere and you want an independent look before committing any of your remaining benefits to it, we are glad to do that too — it is a reasonable thing to want before spending a year's worth of coverage.
This is the part most people do not know about, and for larger treatment plans it is the most useful thing in this article.
If your treatment is substantial enough to exceed one year's annual maximum — which periodontal treatment, implants, and multi-quadrant work often are — it can sometimes be sequenced so that part falls in December and part falls in January. That way it draws on two annual maximums instead of one.
A rough illustration. Say you need four quadrants of periodontal treatment and your remaining annual maximum covers roughly two. Doing all four in December means your plan pays for part and you cover the rest. Doing two in December and two in January means each half draws on a different year's benefits — potentially a meaningful difference in what you pay.
When this works:
When it does not:
The clinical question comes first. Insurance sequencing is a consideration, not a treatment plan. If dividing the work would make the outcome worse, it is not worth the savings — and we will tell you when that is the case.
If you think this might apply to you, ask. It takes one conversation to find out, and it is the kind of thing that is obvious in hindsight and invisible if nobody mentions it.
People mix these up constantly, and the difference determines whether you have a deadline.
FSA (Flexible Spending Account). Generally use-it-or-lose-it at the end of the plan year. Some employers offer a grace period into the following year, and some allow a limited amount to carry over, but many offer neither. If you have an FSA balance and dental work you need, this is a genuine deadline.
Check with your HR department or benefits administrator for your specific plan's rules, since they vary and the deadline is not always December 31.
HSA (Health Savings Account). Yours to keep. The balance rolls over indefinitely, the account follows you if you change jobs, and there is no year-end deadline. If you have an HSA, there is no urgency from the account's perspective — though the dental plan's annual maximum still resets.
Both can generally be used for dental care, including procedures that insurance does not cover. If you have been quoted an out-of-pocket amount for something, that is often an eligible expense.
The quick version: FSA has a deadline. HSA does not. Know which you have before you plan around it.
We will not tell you to get treatment you do not need because your benefits are expiring.
That framing is common this time of year and it is backwards. Benefits exist to help pay for care you need. They are not a budget to spend down, and "use it or lose it" is a reason to act on treatment you have already been told you need — not a reason to find something to have done.
How to tell the difference:
A deadline is a reason to make a decision. It is not a reason to skip understanding what you are deciding about.
If you have been given a treatment plan and are uncertain about it — particularly a large one that would use most of your remaining benefits — a second opinion is a reasonable step. We see patients for exactly that.
There is a practical reason not to leave this until mid-December.
December books up. Everyone has the same deadline, holiday closures shorten the month, and specialty appointments are not something that can be squeezed in at short notice. By the second week of December, the schedule is usually full.
There is also lead time to account for. If your treatment needs a pre-treatment estimate submitted to your insurer, that typically takes a couple of weeks to come back. Starting in November leaves room for that. Starting December 20 does not.
This week:
If your benefits are already used up, the useful move is the opposite one: ask about scheduling in January, when your maximum refreshes. Getting on the books early in the year beats competing for appointments later.
Either way, the ten-minute phone call is worth making.
If you are a patient here, we can look up your remaining benefits and tell you what your pending treatment would cost this year versus next. That is a short phone call and there is no obligation attached to it.
If you are not a patient here and have been given a treatment plan you want a second look at before committing a year's worth of benefits to it, we see patients for second opinions year round.
And if your benefits are already spent, call anyway — getting on the January schedule now is easier than competing for it in the new year.
We see patients at two Denver-area locations — Central Park in Denver and Westpark in Westminster. Call (720) 703-9116 or request an appointment online.
Reviewed by Kyle Diehl, DDS, PhD, board-certified periodontist. Last updated November 2026.
Call 720.703.9116 or request an appointment online to set up your first visit. We’ll be in touch soon.