What Does an HSA Cover? Complete List of Eligible Expenses

A Health Savings Account (HSA) is arguably the most powerful financial tool available in the United States. It offers a unique triple-tax advantage: contributions are 100% tax-deductible, the balance grows completely tax-free through investments, and withdrawals are entirely tax-free when used for qualified medical expenses.

However, the true utility of an HSA depends heavily on knowing exactly what you can buy with it. Misunderstanding the rules can lead to missed opportunities to save 20% to 37% (depending on your tax bracket) on everyday purchases, or worse, trigger steep IRS penalties.

To maximize this financial powerhouse, you need to understand what the IRS considers a qualified medical expense under Internal Revenue Code (IRC) Section 213(d).

The Golden Rule: IRC Section 213(d)

The IRS defines qualified medical expenses as costs associated with the diagnosis, cure, mitigation, treatment, or prevention of disease, or for the purpose of affecting any structure or function of the body.

This is a broad definition, but it has strict boundaries. The expense must be primarily to alleviate or prevent a physical or mental defect or illness. It cannot be an expense that is merely beneficial to your general health, such as a vacation, a gym membership (with exceptions), or your weekly organic groceries.

Let's break down the specific categories of what your HSA covers, starting with the standard medical costs you encounter throughout the year.

Standard Medical, Dental, and Vision Care

Most people use their HSA to cover primary care visits and prescriptions, but the account's reach extends far deeper into dental and vision care.

Everyday Medical Services

Doctor Visits and Specialist Copays: Payments for primary care physicians, pediatricians, cardiologists, dermatologists, and other specialists.
Hospital Services: Inpatient care, outpatient procedures, anesthesia, surgery, and emergency room visits.
Laboratory Fees: Blood work, X-rays, MRIs, CT scans, and diagnostic mammograms.
Immunizations and Vaccines: Flu shots, COVID-19 vaccines, tetanus boosters, and travel immunizations.
Physical Therapy: Prescribed physical rehabilitation sessions following an injury or surgery.

Comprehensive Dental Care

While standard health insurance rarely covers major dental work, your HSA has you covered. Eligible expenses include:

Preventative Care: Routine cleanings, oral exams, and dental X-rays.
Restorative Treatments: Fillings, crowns, root canals, bridges, and extractions.
Orthodontia: Braces, clear aligners (like Invisalign), and retainers for both children and adults.
Periodontal Treatments: Deep cleanings (scaling and root planing) and gum disease treatments.

Note: Cosmetic dental procedures, such as professional teeth whitening or cosmetic veneers, are strictly ineligible.

Vision Care and Corrections

Vision expenses can add up quickly. Fortunately, almost all corrective vision care is HSA-eligible:

Eye Exams: Annual diagnostic eye examinations.
Prescription Eyewear: Prescription glasses, bifocals, reading glasses, and prescription sunglasses.
Contact Lenses: The lenses themselves, along with contact lens cleaning solutions and storage cases.
Laser Eye Surgery: LASIK, PRK, and other corrective eye surgeries.

Over-the-Counter (OTC) Medicines and Products

One of the most significant updates to HSA rules occurred with the passage of the CARES Act in 2020. This legislation permanently eliminated the requirement to obtain a doctor's prescription for over-the-counter (OTC) medications to be deemed HSA-eligible. It also officially added menstrual care products to the list of qualified expenses.

Eligible OTC Medications (No Prescription Required)

Pain Relievers and Anti-inflammatories: Ibuprofen (Advil, Motrin), Acetaminophen (Tylenol), Aspirin, and Naproxen (Aleve).
Allergy and Sinus Medications: Antihistamines (Claritin, Zyrtec, Allegra), decongestants, and nasal sprays.
Cold and Flu Remedies: Cough drops, cough syrups, decongestants, and multi-symptom cold relief medications.
Digestive Aids: Antacids (Tums, Pepto-Bismol), acid reducers (Prilosec, Pepcid), laxatives, and anti-diarrheal medications.

Eligible OTC Health Products

First Aid Supplies: Bandages, gauze, medical tape, antiseptic wipes, burn ointments, and first aid kits.
Health Monitoring Devices: Blood pressure monitors, blood glucose test strips, thermometers, and pulse oximeters.
Menstrual Care Products: Tampons, pads, liners, menstrual cups, and period underwear.
Pregnancy and Family Planning: Pregnancy test kits, fertility monitors, condoms, and birth control pills.

Surprising HSA-Eligible Expenses

Many HSA owners are surprised to learn that the IRS permits tax-free funds to be spent on alternative therapies, specialized products, and niche medical items. Here are some of the most overlooked eligible expenses:

Acupuncture and Chiropractic Care: Treatments from licensed chiropractors and acupuncturists are fully eligible without a referral.
Sunscreen: Broad-spectrum sunscreens with an SPF of 15 or higher are eligible because they prevent skin disease.
Acne Treatments: Over-the-counter acne washes, creams, and light therapy devices.
Breast Pumps and Lactation Supplies: Breast pumps, storage bags, and nursing pads.
Service Animals: The cost of buying, training, and maintaining (food, veterinary care) a guide dog or other service animal for a visually impaired, hearing impaired, or physically disabled person.
Sleep Aids: OTC sleep medications, snoring mouthguards, and CPAP machines (including replacement masks and filters).
Smoking Cessation Programs: Nicotine patches, gum, and structured programs designed to help you quit smoking.

The Gray Area: Letters of Medical Necessity (LMN)

Some expenses sit on the border between general wellness and true medical treatment. For these items, you cannot simply swipe your HSA debit card. You must obtain a Letter of Medical Necessity (LMN) from a licensed physician.

An LMN is a formal document where your doctor states that a specific treatment or product is medically necessary to treat or alleviate a diagnosed physical or mental condition.

Common expenses that require an LMN include:

Gym Memberships and Personal Training: Only eligible if prescribed to treat a specific medical condition, such as clinical obesity, hypertension, or severe physical rehab.
Massage Therapy: Eligible only if prescribed to treat a specific injury or chronic condition like fibromyalgia.
Weight Loss Programs: The fees for programs like Weight Watchers are eligible if prescribed to treat diagnosed obesity or heart disease (though the cost of the actual food is usually not eligible).
Air Purifiers and Humidifiers: Eligible if prescribed to alleviate severe allergies, asthma, or chronic respiratory illnesses.
Vitamins and Supplements: Generally ineligible unless prescribed by a doctor to treat a specific nutritional deficiency (e.g., high-dose iron for severe anemia).

What is Strictly Ineligible?

To protect your account from penalties, it is equally important to know what you cannot buy with HSA funds. As a rule of thumb, anything purely cosmetic, recreational, or for general well-being is excluded.

Expense Category	HSA Status	Notes / Exceptions
Cosmetic Surgery	Ineligible	Unless needed to reconstruct a deformity from congenital abnormalities, trauma, or disease.
Teeth Whitening	Ineligible	Deemed cosmetic; includes bleaching kits and in-office treatments.
Maternity Clothes	Ineligible	Considered standard apparel, not a medical necessity.
Hair Loss Treatments	Ineligible	Rogaine, hair transplants, and similar treatments are deemed cosmetic.
Health Insurance Premiums	Ineligible	Exceptions apply (COBRA, long-term care, Medicare over age 65, or during unemployment).
CBD and Marijuana	Ineligible	Federal law governs HSA eligibility; federally illegal substances are excluded, even if prescribed locally.
Funeral Expenses	Ineligible	Costs associated with funerals, cremation, or burials are not medical care.

The Health Insurance Premium Exception

Normally, you cannot use your HSA to pay your monthly health insurance premiums. However, the IRS makes four critical exceptions to this rule. You can use tax-free HSA dollars to pay premiums for:

COBRA Continuing Coverage: If you lose your job and elect COBRA, you can pay these premiums with your HSA.
Long-Term Care Insurance: Subject to annual IRS limits based on your age.
Premiums While Unemployed: If you are receiving federal or state unemployment compensation, you can pay your standard health insurance premiums using HSA funds.
Medicare Premiums (Age 65+): You can use HSA funds to pay premiums for Medicare Part A, Part B, and Part D, as well as Medicare Advantage plans. Note: You cannot use HSA funds to pay for Medigap (Medicare Supplement) policies.

The "Shoebox Strategy": Maximizing Your HSA as an Investment Tool

If you have the cash flow to pay for your current medical expenses out of pocket, you should consider the "Shoebox Strategy." This is the ultimate wealth-building hack utilizing an HSA.

Unlike a Flexible Spending Account (FSA), there is no "use-it-or-lose-it" rule with an HSA. Your funds roll over year after year indefinitely. Furthermore, the IRS does not impose a deadline or time limit on when you must reimburse yourself for a qualified medical expense.

How It Works:

Incur an Expense: You pay a $500 dental bill out of pocket today.
Save the Receipt: Scan the receipt, the Explanation of Benefits (EOB), and store it securely (digitally in "the shoebox").
Invest the HSA Funds: Instead of pulling $500 out of your HSA, you leave that money invested in low-cost index funds within your HSA.
Let It Compound: Over 20 years, that $500 grows to roughly $1,930 (assuming a 7% average annual return).
Reimburse Yourself Tax-Free: Twenty years from now, you submit the original $500 receipt and withdraw $500 tax-free. You have pocketed the $1,430 investment gain completely tax-free, and you still have $500 in cash to spend however you want.

This strategy turns your HSA into an auxiliary retirement account that outperforms traditional IRAs and 401(k)s.

How to Document and Audit-Proof Your HSA

Because the HSA operates on a self-certification model, your HSA custodian will not verify whether your debit card swipes are for eligible items. It is up to you to maintain impeccable records in case of an IRS audit.

If you are audited, you must prove three things for every HSA withdrawal:

The expense was for a qualified medical service or product.
The expense was incurred after you established the HSA.
The expense was not paid or reimbursed by any other insurance plan or source.

Best Practices for Record-Keeping:

Go Digital: Set up a dedicated cloud storage folder (Google Drive, Dropbox, iCloud) categorized by year.
Keep Two Documents per Claim: Store the itemized merchant receipt (showing what was purchased) alongside the insurance Explanation of Benefits (showing what you actually owed).
Back Up Debit Card Statements: Keep statements showing the transaction matching the receipt.

What Happens If You Make a Mistake?

If you accidentally use your HSA for a non-qualified expense, the consequences depend on your age:

Under Age 65: You must report the distribution on IRS Form 8889. You will owe ordinary income tax on the distribution amount, plus a 20% penalty.
Age 65 and Older: The 20% penalty is waived. You will only pay ordinary income tax on the distribution. At this stage, your HSA functions exactly like a traditional IRA, but with the added bonus that any withdrawals used for medical expenses remain 100% tax-free.

If you catch an accidental swipe early, many HSA custodians allow you to submit a "Mistaken Distribution" form. You can return the funds to your account before the tax filing deadline for that year to avoid taxes and penalties.