S-Corp Owner Health Insurance Premium Deduction

Quick answer: For 2025, your S corporation can't take a direct "insurance expense" business deduction the way it does for salaries—but if the corporation pays or reimburses your health insurance premiums and reports them as W-2 wages, you personally get an above-the-line self-employed health insurance deduction on your Form 1040, effectively making the cost tax-free at the individual level even though it isn't a corporate-level deduction reducing S-corp profit.

What it is

This is the "2-percent shareholder-employee" health insurance rule under IRC § 162(l), as clarified by Notice 2008-1. It is not the same as an employee getting tax-free health coverage under IRC § 106 — that exclusion doesn't apply to you. As the notice explains, Section 106 provides an exclusion from the gross income of an employee for employer-provided coverage under an accident and health plan, but a 2-percent shareholder is not an employee for purposes of §106, per Treas. Reg. §1.106-1 and section 1372(a)¹. Instead, you're treated similarly to a partner: accident and health insurance premiums paid or furnished by an S corporation on behalf of its 2-percent shareholders in consideration for services rendered are treated for income tax purposes like partnership guaranteed payments under § 707(c), per Rev. Rul. 91-26².

How it works

1. The plan must be "established by" the S corporation. Notice 2008-1 says a plan providing medical care coverage for the 2-percent shareholder-employee in an S corporation is established by the S corporation if the S corporation makes the premium payments directly, or the shareholder pays and furnishes proof of payment and the S corporation reimburses the shareholder in the same year. If the premiums are not paid or reimbursed by the S corporation and included in the shareholder's gross income, no plan is established and the deduction isn't allowed³.

2. The corporation reports the premiums as W-2 wages. The premium payments are included in wages for income tax withholding purposes on the shareholder-employee's Form W-2, but are not wages subject to Social Security and Medicare taxes if the requirements for exclusion under section 3121(a)(2)(B) are satisfied⁴. You then are required to include the amount of the accident and health insurance premiums in gross income under § 61(a)⁵.

3. You claim the offsetting deduction on your personal return. Publication 502 confirms: if you were self-employed and had a net profit for the year, you may be able to deduct, as an adjustment to income, amounts paid for health insurance on behalf of yourself, your spouse, and your dependents — for this purpose you were self-employed if you received wages from an S corporation in which you were more than a 2% shareholder, and the insurance plan must be established under your trade or business, with the deduction capped at your earned income from that trade or business⁶.

Example (illustrative)

Say your S corporation pays $12,000 in premiums directly to the insurer for your family's coverage. The corporation reports that $12,000 as additional W-2 wages to you (income-tax wages, not necessarily FICA wages). You report the $12,000 as income, then deduct it back out as a self-employed health insurance deduction on Schedule 1, as long as your W-2 wages/earned income from the S corp are at least $12,000.

Risks and limits

• The deduction is not allowed to the extent it exceeds the earned income derived by the taxpayer from the trade or business with respect to which the plan is established.⁷
• The deduction is not allowed for amounts during a month in which the taxpayer is eligible to participate in any subsidized health plan maintained by an employer of the taxpayer or of the spouse of the taxpayer.⁸
• The Code itself confirms this doesn't help self-employment tax: the deduction rules address income tax only, and § 162(l) computations for wages of S corp 2% shareholders are separately addressed at IRC § 162(l)(5).
• If you're claiming a Marketplace premium tax credit, use IRS Publication 974's coordination worksheets, since specified premiums interact with the credit under Treas. Reg. § 1.162(l)-1 (last amended 2017).

In practice

This mechanism gets you a personal above-the-line deduction that offsets the wage income — it does not create a separate corporate deduction reducing S-corp net profit beyond the wage expense already reported. It doesn't erase self-employment/FICA-equivalent exposure and requires careful W-2 reporting each year; missing the "established by the corporation and reported as wages" steps forfeits the deduction entirely per the examples in Notice 2008-1.

Given the wage-reporting mechanics and coordination with any premium tax credit, it's worth having a CPA confirm your payroll reporting and worksheet calculations match your specific facts.