The Self-Employed Health Insurance Deduction, Untangled

By Tom, CPA · Updated October 27, 2026

Part of: Tax Planning

TL;DR: Self-employed people with net profit can deduct health, dental and qualified long-term care premiums above the line. Months eligible for a subsidized employer plan do not count, and S corp owners must run premiums through W-2.

Educational only, not tax, legal, or investment advice. Examples are illustrations, not predictions. Rules and limits change; verify current figures and talk to a qualified professional about your situation.

Employees get health insurance paid with pre-tax dollars and never think about it. The self-employed buy their own coverage and then discover a deduction that is generous, oddly placed, and capable of creating a circular math problem that would make an engineering professor sigh. The tax code is 4 million words long; you need about 400 of them to claim the self-employed health insurance deduction correctly.

This guide covers who is eligible, the subsidized-coverage rule that disqualifies many people, how S corporation shareholders claim it, the circular calculation with ACA premium tax credits, and a worked example. Rules are federal, as of Oct 2026. States that start from federal AGI usually follow along, but check yours, because a few states compute health insurance deductions their own way.

CPA Warning Label: Eligibility for any subsidized employer plan, including a spouse's, can disqualify months. Marketplace credit users must net the credit out.

Eligibility

You can generally deduct premiums for medical, dental and vision insurance, and qualified long-term care insurance (subject to age-based limits), for yourself, your spouse, your dependents and children under 27 at year-end, if you are:

• A sole proprietor or single-member LLC owner with net profit on Schedule C or F,
• A partner with net earnings from self-employment, or
• A more-than-2% shareholder in an S corporation, with special steps (see below).

Medicare premiums you pay (Part B, Part D, Medicare Advantage and Medigap) can count too, which matters for older consultants and early retirees with small businesses.

The plan can be in the business's name or yours. For sole proprietors, a policy in your personal name is fine.

The deduction is an adjustment to income on Schedule 1, which reduces AGI. It does not reduce self-employment tax, and it cannot exceed the net profit (earned income) from the business under which the plan is established, reduced by certain other items like the deduction for half of SE tax and self-employed retirement contributions.

The subsidized-coverage rule

Here is the trap: you cannot take the deduction for any month you were eligible to participate in a subsidized health plan maintained by any employer of yours or of your spouse, dependent or child under 27. Eligibility is the test, not enrollment.

So if your spouse's employer offers subsidized family coverage and you choose your own marketplace plan instead, you generally cannot deduct those premiums for those months. The rule is applied month by month and separately for medical coverage and long-term care coverage.

Common situations:

• You leave a job in June and start freelancing. Premiums for July through December can qualify. COBRA premiums count as well if the business has net profit.
• W-2 job plus side gig. If the day job offers subsidized coverage, the side gig does not unlock the deduction.
• Spouse is eligible for employer coverage. Generally blocks the deduction for months of eligibility.

Premiums that do not qualify for this deduction may still count as medical expenses on Schedule A, subject to the 7.5%-of-AGI floor, if you itemize.

S corporation shareholders

A more-than-2% S corporation shareholder cannot simply pay premiums personally and deduct them. The steps:

1. The S corporation pays the premiums, or reimburses the shareholder for premiums the shareholder paid.
2. The premiums are included in the shareholder's W-2 box 1 wages. They are generally not subject to Social Security and Medicare tax when paid under a plan for employees.
3. The shareholder then claims the self-employed health insurance deduction on their personal return, limited to their wages from that S corporation.

If the corporation skips step 2, the deduction can be denied. This is a frequent cleanup item at year-end, so tell your payroll provider before the final payroll run. Our S corp reasonable salary guide and accountable plan guide cover the related payroll setup.

The circular ACA calculation

If you buy marketplace coverage and receive a premium tax credit (PTC), you have a puzzle:

• The deduction reduces AGI.
• Lower AGI increases the PTC.
• A bigger PTC means you paid less of the premium yourself.
• Less premium paid means a smaller deduction, which raises AGI, which reduces the PTC...

You may only deduct premiums you actually paid, net of the credit. The IRS provides a method in Rev. Proc. 2014-41 (an iterative calculation, plus a simplified alternative) and worksheets in Publication 974. Tax software usually handles it, but only if you enter the 1095-A and business income correctly.

The ACA credit landscape has been shifting. The enhanced credits from 2021 to 2025 expired after 2025 under law as of Oct 2026, and the 2025 tax law removed the cap on repaying excess advance credits for tax years after 2025, per the IRS. Underestimating income now carries more risk. See our health insurance before Medicare guide.

Where it goes on the return

The deduction is calculated on Form 7206 and flows to Schedule 1 as an adjustment to income. That placement has several consequences worth knowing:

• It lowers AGI, so it can help with AGI-based phaseouts, the ACA premium tax credit, IRMAA two years later, and state taxes that start from federal AGI.
• It does not lower Schedule C profit, so it does not touch self-employment tax. People who move premiums onto Schedule C as a "business expense" are overstating their SE deduction and understating SE tax.
• It reduces qualified business income for the QBI deduction, because it is attributable to the business. Our QBI guide explains the adjustment.
• It interacts with retirement contributions. The earned income limit is reduced by SEP or solo 401(k) contributions for yourself, which matters when profit is thin and both deductions compete for the same dollars.

If you have more than one business, the plan must be established under a business with enough net profit to support the deduction. You generally cannot combine profits from separate businesses to cover one plan.

Common mistakes

• Deducting premiums for months with access to a spouse's subsidized plan. The month-by-month eligibility test catches couples who simply prefer a different network.
• Double counting. Taking the same premiums as both the self-employed deduction and an itemized medical expense. Any premium not deductible under the self-employed rule can be included on Schedule A, but not the same dollars twice.
• Forgetting to reduce premiums by the premium tax credit. Only the net cost you paid counts.
• S corp owners paying premiums personally with no reimbursement and no W-2 inclusion. Fixing this after year-end is painful.
• Claiming dental and vision but forgetting Medicare. Older freelancers often leave Part B and Part D premiums on the table.
• Claiming the deduction in a loss year. No net earnings, no deduction.

When in doubt, list premiums by month, mark each month's employer-plan eligibility for both spouses, and only deduct the months that pass. It is a ten-minute spreadsheet that prevents a five-letter word: audit.

Illustration

Casey is a single freelance developer with $70,000 of Schedule C profit in 2026, no employer coverage available, and a bronze-plus plan costing $6,000 for the year with no premium tax credit.

• SE tax: about $9,890 ($70,000 × 92.35% × 15.3%); half is about $4,945.
• Earned income limit: $70,000 − $4,945 = $65,055, comfortably above $6,000.
• Self-employed health insurance deduction: $6,000.
• AGI: $70,000 − $4,945 − $6,000 = $59,055.
• After the $16,100 single standard deduction, Casey's taxable income is about $42,955 (before any QBI deduction), which sits in the 12% bracket, so the deduction saves about $720 of federal income tax.

Now suppose Casey's spouse gets a job in September offering subsidized family coverage. Casey stays on the individual plan anyway. Premiums for September through December, $2,000, are not deductible under this rule, so the deduction falls to $4,000. Illustrative only.

Related planning

• HSA pairing: starting in 2026, bronze and catastrophic plans are treated as HSA-compatible, per the IRS. A self-employed person on such a plan may be able to contribute to an HSA, another above-the-line deduction.
• Long-term care premiums: deductible only up to age-based limits the IRS indexes annually.
• Hiring a spouse: a sole proprietor who genuinely employs a spouse may provide coverage under a plan for employees, but the details are fiddly and the employment must be real.
• Retirees with a small business: Medicare premiums against consulting income can be a meaningful deduction. See health insurance budgeting for FIRE.