Schedule C Medical Expenses: Premiums, HSAs, and Employee Costs

Medical expenses for the sole proprietor do not belong on Schedule C. The IRS treats the owner’s health insurance premiums, copays, and other personal medical costs as personal expenses, not business expenses, even when your Schedule C business is your only source of income. The deduction most self-employed people are actually looking for — the self-employed health insurance deduction — is claimed on Schedule 1 of Form 1040, not on Schedule C. Health costs you pay for W-2 employees are the exception: those are legitimate business expenses and do go on Schedule C.

Why Your Own Medical Costs Fail the Schedule C Test

Schedule C reports income and expenses from a sole proprietorship or single-member LLC. A cost qualifies as a deductible business expense only if it is “ordinary and necessary” to running the business itself. Your own health insurance premiums and doctor visits keep you healthy, not your business operating, and the IRS draws the line there.¹

The Schedule C instructions say so directly: contributions to your own accident and health plan do not go on Line 14. Instead, you “may be able to deduct on Schedule 1 (Form 1040), line 17, the amount you paid for health insurance on behalf of yourself, your spouse, and dependents.”¹ That is where most of the real tax savings happen.

Where Your Health Insurance Premiums Actually Go

The self-employed health insurance deduction lets you subtract qualifying premiums from your gross income before you arrive at adjusted gross income (AGI). Because it reduces AGI itself rather than taxable income after AGI, it can also improve your eligibility for other AGI-sensitive benefits, including education credits, the child tax credit, and IRA contribution deductibility. And you do not have to itemize to take it.

What Premiums Qualify

The deduction covers premiums for medical, dental, and vision insurance for yourself, your spouse, your dependents, and your children under age 27 — even if those children are not your dependents for tax purposes.² Medicare Part B and Part D premiums, Medigap supplemental premiums, and qualified long-term care insurance premiums also count, though long-term care premiums are subject to age-based annual caps.³

Who Is Eligible

Two restrictions can reduce or eliminate the deduction. The insurance plan must be established under your business. And you cannot claim the deduction for any month in which you were eligible to participate in a subsidized health plan maintained by any employer, including your spouse’s employer. The test is applied month by month, so if your spouse’s employer coverage started in April, you would claim the deduction for January through March only.²

Mere eligibility is enough to disqualify a month. You do not have to actually enroll in the other plan. If your spouse’s employer offers a family plan you could join but you decline it, the deduction is still disallowed for those months.³

The Earned Income Cap

The deduction cannot exceed your earned income from the business that established the insurance plan. Earned income here means your Schedule C net profit, reduced by the deductible portion of self-employment tax and any SEP, SIMPLE, or qualified plan contributions tied to that business.² If the business posts a loss, you cannot take the deduction at all. Premiums that exceed this limit are not lost; they can be rolled into your other medical expenses for possible itemization on Schedule A.

How to Claim It

You calculate the deduction on Form 7206, which walks through the earned income limit and outputs the deductible amount. That figure goes on Schedule 1 (Form 1040), line 17.³ The deduction is available whether you take the standard deduction or itemize.

Out-of-Pocket Costs and Schedule A

Copays, prescription costs, lab fees, medical equipment, and other costs you pay out of pocket are personal costs. They do not qualify for the above-the-line deduction. The only path for deducting them is itemizing on Schedule A, and the math rarely works.

The 7.5% AGI Floor

You can deduct only the portion of qualified medical expenses that exceeds 7.5% of your AGI.⁴ At an AGI of $80,000, the first $6,000 of medical expenses produces zero deduction. Spend $9,000 total and only $3,000 is deductible.

That deductible amount then has to combine with your other itemized deductions — state and local taxes, mortgage interest, charitable contributions — to clear the standard deduction before itemizing makes sense at all. For 2026, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly.⁵ Most self-employed taxpayers never clear that bar on medical costs alone.

What Counts

The IRS defines qualified medical expenses broadly: anything paid for diagnosis, treatment, prevention of disease, or care affecting a structure or function of the body.⁶ Payments to doctors, dentists, and other practitioners qualify, as do prescription medications, insulin, eyeglasses, contact lenses, hearing aids, and medically necessary equipment. Transportation for medical care also qualifies; the IRS medical mileage rate is 20.5 cents per mile for 2026.⁷

Over-the-counter drugs other than insulin require a doctor’s prescription to qualify.⁴ General health supplements, vitamins, and cosmetic weight-loss programs do not. Cosmetic surgery is excluded unless it corrects a congenital abnormality, a disfiguring injury, or a disease.

Any premium already claimed through the self-employed health insurance deduction cannot also appear on Schedule A. Expenses reimbursed by insurance or paid from a health savings account distribution are excluded too.² Only unreimbursed, undeducted costs belong on Schedule A.

HSAs as the Practical Alternative

Because the 7.5% floor makes Schedule A impractical for most out-of-pocket costs, a Health Savings Account is usually the better tool. HSA contributions are deductible above the line on Schedule 1, withdrawals for qualified medical expenses are tax-free, and there is no percentage-of-income floor.⁸

Contributing requires a qualifying high-deductible health plan (HDHP). For 2026, an HDHP must have a minimum annual deductible of $1,700 for self-only coverage or $3,400 for family coverage, and maximum out-of-pocket costs of $8,500 (self-only) or $17,000 (family).⁹ The 2026 contribution limits are $4,400 for self-only coverage and $8,750 for family coverage, with an additional $1,000 catch-up if you are 55 or older.¹⁰ Contributions are reported on Form 8889, with the deduction flowing to Schedule 1, line 13.

The One, Big, Beautiful Bill Act expanded HSA eligibility for 2026 by treating bronze and catastrophic plans — whether purchased through the marketplace or not — as HSA-compatible, even if they do not meet the traditional HDHP definition. The law also lets HSA holders enrolled in certain direct primary care arrangements contribute to an HSA and use HSA funds tax-free for those periodic fees.¹¹ If you have been on a bronze plan and assumed an HSA was off the table, that is worth revisiting.

One useful quirk: over-the-counter medicines qualify as HSA-eligible expenses without a prescription, even though the same medicines still require a prescription to qualify for the Schedule A deduction. The HSA is the more flexible vehicle for everyday health costs.

Employee Medical Costs That Do Belong on Schedule C

If your business has W-2 employees, premiums you pay for their health coverage and medical benefits you provide are legitimate business expenses. These go on Schedule C, Line 14 (Employee benefit programs), and they reduce your business income dollar for dollar with no AGI threshold and no earned income cap.¹

If you offer a formal group health plan, 100% of premiums paid for employees are deductible, and those premiums are generally excluded from the employee’s taxable income. If a group plan does not fit your business, a Qualified Small Employer Health Reimbursement Arrangement (QSEHRA) lets you reimburse employees for individual health insurance premiums and medical expenses. To offer a QSEHRA you must have fewer than 50 full-time employees and no group health plan.¹² For 2026, QSEHRA reimbursements are capped at $6,450 annually for self-only coverage and $13,100 for family coverage. Amounts reimbursed are deductible business expenses and generally tax-free to the employee.

The critical limit: these rules apply to employees, not to the business owner. As the sole proprietor you still use the self-employed health insurance deduction and Schedule A for your own costs.

Hiring a Spouse

One planning technique experienced tax professionals use involves hiring your spouse as a bona fide W-2 employee and establishing a Section 105 health reimbursement arrangement. The spouse-employee receives family health coverage through the business, which covers both of them and you as the spouse’s family member. The business then reimburses qualifying medical expenses — copays, deductibles, prescriptions, dental work — through the Section 105 plan, and those reimbursements are deductible on Schedule C, Line 14.

The approach effectively converts the owner’s out-of-pocket medical costs into deductible business expenses, bypassing both the self-employed health insurance deduction limits and the 7.5% AGI floor. It also invites scrutiny. Your spouse must perform legitimate work for the business, the compensation must be reasonable for the work performed, and the plan must be documented in writing. Reimbursing more than the spouse’s work would reasonably justify is a red flag. Set this up with a tax professional. The savings can be substantial, and the IRS has seen every variation of this arrangement.

Marketplace Coverage and the Premium Tax Credit

If you buy health insurance through the marketplace and receive a premium tax credit, you run into a circular calculation. The self-employed health insurance deduction reduces your AGI, a lower AGI increases your premium tax credit, the larger credit reduces the premiums available for the deduction, and that changes your AGI again.¹³

The IRS offers two calculation methods to resolve the loop — an iterative method and a simplified method — both described in Publication 974. Using them is optional. You can use any computation method that produces a valid combination, as long as the deduction and the credit together do not exceed the premiums you actually paid.¹⁴ Tax software handles this automatically. If you work with a preparer, confirm they have accounted for the interaction. Getting it wrong means either leaving money on the table or triggering a reconciliation notice.

1
Internal Revenue Service. 2025 Instructions for Schedule C (Form 1040)
2
Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses
3
Internal Revenue Service. Instructions for Form 7206
4
Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses
5
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments from the One Big Beautiful Bill
6
Office of the Law Revision Counsel. 26 USC 213 – Medical, Dental, Etc., Expenses
7
Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents
8
Internal Revenue Service. Instructions for Form 8889
9
Internal Revenue Service. 2026 Inflation Adjusted Items for Health Savings Accounts (HSAs)
10
Internal Revenue Service. Expanded Availability of Health Savings Accounts Under the One, Big, Beautiful Bill Act (OBBBA) – Notice 2026-5
11
Internal Revenue Service. Treasury, IRS Provide Guidance on New Tax Benefits for Health Savings Account Participants Under the One Big Beautiful Bill
12
Internal Revenue Service. Qualified Small Employer Health Reimbursement Arrangements Notice 2017-67
13
Internal Revenue Service. Revenue Procedure 2014-41 – Guidance for Self-Employed Health Insurance Deduction and Premium Tax Credit
14
Internal Revenue Service. Publication 974 (2025), Premium Tax Credit (PTC)