Self-Employed Health Insurance Deduction: Above-the-Line, Not Schedule A (2026)

Self-employed individuals can deduct 100% of health, dental, vision, and qualified long-term care insurance premiums paid for themselves, their spouses, and dependents as an above-the-line deduction under IRC §162(l). This is a deduction against gross income - it reduces AGI and does not require itemizing. It is one of the most valuable deductions available to self-employed taxpayers, and it is commonly missed or calculated incorrectly.

Who Qualifies

Sole proprietors (Schedule C): Eligible. Deduction limited to net profit from the business. If net profit is $30,000 and premiums are $18,000, the deduction is $18,000.

Partners in a partnership: Eligible. The partnership must pay the premiums or reimburse the partner and include the amount in the partner's guaranteed payments.

S-corp shareholders owning more than 2%: Eligible. The S-corp must pay or reimburse the premiums and include them in the shareholder-employee's W-2 wages. The shareholder then takes the deduction on Form 1040.

Not eligible: Those who were eligible for employer-subsidized coverage through their own employment or a spouse's employer for any month of the year.

The Net Self-Employment Income Limitation

The deduction cannot exceed the net profit (or earned income for partners) from the self-employment activity that generates the insurance eligibility. If a sole proprietor has a net loss or very small profit, the deduction is limited to that amount. Unused premiums are not lost - they may be deductible as a medical expense on Schedule A (subject to the 7.5% AGI floor) to the extent they exceed the §162(l) limit.

Medicare Premiums Qualify

Self-employed individuals who are at least 65 can deduct Medicare Part B, Part C (Medicare Advantage), and Part D premiums under §162(l) in addition to private insurance premiums. This is a significant benefit for self-employed retirees or senior business owners - Medicare Part B premiums start at approximately $185/month in 2026, and IRMAA surcharges can push them much higher. All of it is deductible above the line.

S-corp shareholders: the W-2 inclusion step is required and frequently missed. If an S-corp pays health insurance premiums for a more-than-2% shareholder and does not include the premiums in the shareholder's W-2 wages, the shareholder cannot take the §162(l) deduction. The IRS has been consistent on this point. The mechanics: premiums paid by the S-corp are reported as additional wages in Box 1 of the W-2 (not Boxes 3 or 4 - not subject to FICA). The shareholder then deducts the same amount on Schedule 1, Line 17.

ACA Marketplace Interaction: The Coordination Trap

A self-employed taxpayer who purchases insurance through the ACA marketplace and receives a premium tax credit (PTC) under IRC §36B must coordinate carefully. The §162(l) deduction is limited to the net premium actually paid (after the PTC). Taking a deduction for the gross premium while also receiving the full PTC is not permitted. The interaction requires an iterative calculation - the deduction affects AGI, which affects the PTC, which affects the deduction. Most tax software handles this automatically, but manual returns require attention to the circular dependency.

Authority: IRC §162(l) (self-employed health insurance deduction - 100% of amounts paid for health insurance coverage for the taxpayer, spouse, and dependents; above-the-line deduction against gross income; limitation to earned income from the trade or business; not available for months taxpayer was eligible for employer-subsidized plan); IRC §162(l)(2)(B) (limitation - deduction cannot exceed net earned income from the trade or business with respect to which the plan is established); IRC §162(l)(4) (Medicare premiums treated as insurance for purposes of §162(l) - self-employed individuals may include Medicare premiums); Rev. Rul. 91-26 (S-corp health insurance - premiums paid by S-corp for more-than-2% shareholders; must be included in W-2 wages; shareholder then deducts under §162(l)); Notice 2008-1 (S-corp shareholder health insurance - mechanics of W-2 inclusion; Box 1 inclusion required for §162(l) deduction; not subject to FICA); IRC §36B (premium tax credit for ACA marketplace insurance; coordination with §162(l) deduction required; net premium after PTC limits the deduction); IRC §213(d) (medical expense definition - premiums deductible as medical expenses on Schedule A to extent not deducted under §162(l) and exceeding 7.5% AGI floor); Form 1040 Schedule 1 Line 17 (self-employed health insurance deduction entry).

Self-Employed Health Insurance Deduction: The Above-the-Line Write-Off

The Net Self-Employment Income Limitation

Medicare Premiums Qualify

ACA Marketplace Interaction: The Coordination Trap