Every December, we see the same thing happen.
Patients call the office and say:
“I just realized I still have money in my FSA.”
Or:
“I forgot about my HSA balance.”
And then comes the question:
“Can I use it for dental work?”
In many cases, yes.
In fact, dental care is one of the most valuable ways to use pre-tax healthcare dollars before the end of the year.
If you’re sitting on unused FSA or HSA funds, December may be the best time all year to finally take care of the dental work you’ve been putting off.
The Short Answer
Many dental treatments can be paid for using:
- Flexible Spending Accounts (FSAs)
- Health Savings Accounts (HSAs)
That includes many common dental procedures such as:
- Exams and cleanings
- Fillings
- Crowns
- Root canals
- Extractions
- Periodontal treatment
- Dentures
- Dental implants
- Invisalign and orthodontics (in many cases)
Because these accounts are funded with pre-tax dollars, you’re effectively paying with money that has never been subject to federal income tax.
For many patients, that’s one of the easiest ways to reduce the real cost of dental treatment.
Why December Matters
An HSA generally stays with you from year to year.
An FSA is different.
Many FSA plans have annual deadlines, and unused funds may be forfeited depending on your employer’s specific plan rules.
Some plans allow:
- Limited rollover amounts
- Grace periods
- Extensions
Others do not.
That’s why December often becomes a race against the calendar.
The money is already yours.
The goal is making sure you actually use it.
The Math Most Patients Miss
Let’s say you have:
- $1,500 remaining in your FSA
- A combined federal and state tax rate around 25%
If you don’t use those funds and your plan doesn’t allow a rollover, you could lose access to money that was specifically set aside for healthcare expenses.
On the other hand, using those dollars toward necessary dental treatment allows you to pay with pre-tax money instead of after-tax income.
That’s why many financial advisors encourage patients to maximize eligible healthcare expenses before year-end.
Dental Treatments Patients Commonly Schedule in December
Every year we see a spike in:
Crowns
Patients who delayed treatment finally decide to use their remaining benefits before the calendar resets.
Dental Implants
Year-end often becomes a strategic time to begin treatment.
Invisalign
Many patients use HSA or FSA funds to offset part of the cost of orthodontic treatment.
Night Guards
Patients with clenching, grinding, or jaw discomfort frequently use remaining healthcare dollars before expiration.
Periodontal Treatment
When gum disease treatment has been recommended earlier in the year, December often becomes the time patients move forward.
The Double-Benefit Strategy
Here’s something financially savvy patients often do.
They coordinate:
- Remaining dental insurance benefits
- Remaining FSA or HSA dollars
Together.
For example:
If insurance pays a portion of treatment and the remaining balance is paid with pre-tax healthcare dollars, the overall out-of-pocket burden can be reduced significantly.
Not every treatment qualifies for every insurance plan.
But combining available benefits can often make treatment more affordable.

The Honest Warning
Don’t schedule dental treatment solely because money is available.
That’s not the point.
The goal isn’t spending money for the sake of spending it.
The goal is completing treatment that already makes sense for your health while taking advantage of funds you’ve already set aside.
A crown you genuinely need?
That makes sense.
A filling you’ve been postponing?
Reasonable.
Treatment with no clear purpose simply to use account funds?
Probably not.
The Biggest Mistake Patients Make
Waiting until the last week of December.
By then, appointment availability can become limited.
Many patients have the same idea at the same time.
If you’re hoping to use year-end benefits, it’s usually better to start planning well before the holidays.
Questions to Ask Before Scheduling
Before the year ends, ask:
- How much remains in my FSA?
- How much remains in my HSA?
- What dental treatment has been recommended?
- How much insurance benefit remains?
- What procedures qualify?
- Is there enough time to complete treatment this year?
Those answers can help you make smarter financial decisions.
The Bottom Line
If you’ve been postponing dental treatment and still have money sitting in an FSA or HSA, December can be one of the smartest times to move forward.
The money has already been set aside.
The tax advantages already exist.
The question becomes whether there’s dental work you’ve been meaning to address anyway.
At Monahan Family and Cosmetic Dentistry, Dr. Thomas Monahan and our team help patients throughout Burlington, Graham, Mebane, Elon, and Alamance County understand how insurance benefits, FSA funds, and HSA dollars can work together to make treatment more affordable. Before the year ends, it’s worth finding out what benefits you still have available and whether they can help you achieve a healthier smile while keeping more money in your pocket.
Frequently Asked Questions
Can I use my HSA for dental treatment?
In many cases, yes. Many dental procedures qualify as eligible healthcare expenses.
Can I use my FSA for a crown?
Generally, medically necessary dental treatment is often FSA-eligible, but patients should confirm details with their plan administrator.
Can I use HSA funds for Invisalign?
Orthodontic treatment is often an eligible expense, though individual circumstances can vary.
What happens if I don’t use my FSA?
That depends on your employer’s plan. Some plans allow limited rollover amounts or grace periods, while others follow a use-it-or-lose-it structure.
Can I combine insurance and FSA/HSA funds?
Yes. Many patients use insurance benefits first and then pay their remaining balance with FSA or HSA dollars when eligible.




