KEY TAKEAWAYS:
HSA and FSA funds can usually pay for custom orthotics, laser toenail fungus treatment, and regenerative foot care when the treatment is for a diagnosed condition. Unused HSA dollars carry over, while unused FSA dollars are often lost when the plan year ends.
Every December, a lot of people open a benefits statement and find a few hundred dollars sitting in a flexible spending account with only weeks left to use it. If your heels ache every morning or a toenail has been thick and yellow for two years, using HSA and FSA funds for foot care is one of the more useful places that money can go.
It also lines up with how care works at Central Kansas Podiatry Associates. Several of the treatments Dr. Benjamin Weaver offers in Wichita, including custom orthotics, laser nail treatment, and regenerative therapy, are often paid out of pocket rather than through insurance. Pre-tax health account dollars are built for exactly that kind of expense.
HSA vs. FSA: Which Money Actually Expires?
People often say their "HSA rolls over" at the end of the year, but the two accounts follow very different rules, and mixing them up is how money gets lost.
A health savings account (HSA) belongs to you. The balance carries over from year to year with no deadline, and it stays with you if you change jobs. According to IRS Publication 969 on health savings accounts and flexible spending arrangements, you can generally keep contributing for a given tax year up until the tax filing deadline the following spring.
A health flexible spending account (FSA) is a "use it or lose it" benefit. Your employer chooses one of three options: no extra time at all, a carryover of up to $680 of unused 2026 funds into the next plan year, or a grace period of up to two and a half months to keep spending. A plan can offer a carryover or a grace period, but not both.
Here is how to tell which deadline applies to you:
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Health FSA: Check your plan documents or benefits portal for the last day to incur expenses, whether you have a carryover or grace period, and the separate "run-out" deadline for submitting claims.
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HSA: Your money will not disappear on December 31, but your deductible probably resets on January 1. If you have already met it this year, the parts of a foot visit insurance does cover may cost you less now than in January.
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Limited-purpose FSA: These are usually restricted to dental and vision care, so they typically will not reimburse foot treatment.
HealthCare.gov explains how FSA carryovers and grace periods work if you want a plain-language refresher before you call your benefits administrator.
Foot Care Treatments to Consider With HSA and FSA Funds
Most routine foot care can be paid from a health account, but three treatments come up most often at our office because they are typically paid out of pocket.
Custom Orthotics
Custom orthotics are one of the most straightforward ways to use pre-tax health funds. When a podiatrist prescribes them to treat a condition like plantar fasciitis, flat feet, or recurring heel pain, they generally qualify as a medical expense. Many insurance plans cover them poorly or not at all, which is exactly the gap an FSA or HSA can fill. Some benefits administrators ask for a letter of medical necessity before reimbursing orthotics, so keep your diagnosis paperwork with your receipt.
Laser Toenail Fungus Treatment
A fungal toenail infection (onychomycosis) is an infection, not a cosmetic issue. It can spread to other nails, pass to family members who share a shower, and become harder to fight for people with diabetes, whose circulation is often reduced. Because the treatment addresses a diagnosed infection, laser therapy for toenail fungus is generally an eligible expense.
Our Nailblaster laser toenail fungus treatment uses the FDA-cleared Remy Class IV laser. It is not covered by insurance at our office, and it follows a set schedule: sessions at months one, two, three, and six. Toenails grow slowly, so most patients do not see new, clear nail growth for six to 12 months after the first visit. Starting before your FSA deadline means your first session is billed to this year’s funds instead of next year’s.
Regenerative Treatment Packages
Regenerative medicine is where Dr. Weaver’s practice differs most from a typical foot clinic. Instead of jumping to surgery or another steroid shot, these treatments help your body repair tissue that has stopped healing on its own.
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SoftWave therapy uses acoustic waves to help grow new blood vessels in the injured area.
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A DPMx tissue allograft places healing building blocks directly where they are needed, guided by ultrasound.
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Remy laser sessions calm pain and inflammation.
Paperwork That Gets Your Claim Paid
Most denied claims come down to missing documentation. Keep these records for every foot care expense:
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An itemized receipt showing the date of service, the treatment, and the amount, not just a credit card slip.
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Your diagnosis, which shows the expense treats a medical condition.
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A letter of medical necessity, if your administrator asks for one.
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Copies of everything, since the IRS can ask you to prove an HSA withdrawal paid for qualified care.
Plan rules vary, and this is general information, not tax advice. Your benefits administrator or a tax professional can confirm what your plan covers.
