How S Corp Owners Deduct Health Insurance

The S corp health insurance deduction is the one owner benefit that runs backwards: the premiums go onto the owner's W-2 as income first, and the deduction comes on the owner's Form 1040 second. Skip the first step and the second one disappears. This guide covers why more-than-2% shareholders are treated this way, the two steps, the limits in IRC 162(l), Medicare premiums, HSA contributions, and why a 2% shareholder cannot use a QSEHRA, an ICHRA or a health FSA. The rest of owner pay is in how to pay yourself from an S corp.

Why 2% shareholders are treated differently

For employee fringe benefits, “the S corporation shall be treated as a partnership, and any 2-percent shareholder of the S corporation shall be treated as a partner” (IRC 1372(a)). A 2-percent shareholder is anyone who owns, or is treated under section 318 as owning, more than 2% of the stock or voting power on any day of the year (IRC 1372(b)); the attribution rules count stock held by a spouse, children, grandchildren and parents (IRC 318(a)(1)). The consequence, spelled out in Notice 2008-1, is that the section 106 exclusion for employer-paid health coverage does not apply: a 2% shareholder “is not an employee for purposes of §106,” so the premiums are income (Notice 2008-1). The relief is the self-employed health insurance deduction in section 162(l), which the notice extends to the shareholder when the plan is established by the S corporation.

Step 1: the corporation pays or reimburses the premiums and reports them on the W-2

Notice 2008-1 gives two ways to establish the plan: the S corporation pays the premiums on the policy covering the shareholder (and spouse or dependents) during the year, or the shareholder pays them, gives the corporation proof, and the corporation reimburses them in the same year. A policy in the shareholder's own name is fine, which matters because the IRS notes that some states will not sell a group policy to a corporation with one employee. Either way the corporation “must report the accident and health insurance premiums paid or reimbursed as wages on the 2-percent shareholder-employee's Form W-2 in that same year.”

The payroll treatment is specific. The premiums are wages for income tax withholding and go in box 1 of the W-2, but they “are not subject to Social Security, or Medicare (FICA), or Unemployment (FUTA) taxes if the payments of premiums are made to or on behalf of an employee under a plan or system that makes provision for all or a class of employees,” so they stay out of boxes 3 and 5 (IRS S corporation compensation page; IRC 3121(a)(2)(B)). The 2026 W-2 instructions list “the cost of accident and health insurance premiums for 2%-or-more shareholder-employees paid by an S corporation” among box 1 items (W-2 instructions), and the Form 1120-S instructions say to include the fringe benefit on line 7 or 8 with compensation and show the amount “as an information item in box 14” of that shareholder's W-2 (Form 1120-S instructions). Because the entry lives on the W-2, it has to be in the payroll system before the year closes; Managed Payroll (from $25 per employee per month) adds it as a separate pay item so the boxes come out right.

Step 2: the shareholder takes the deduction on Form 7206

The shareholder then claims the self-employed health insurance deduction, an adjustment to income on Schedule 1, line 17, figured on Form 7206. The instructions list the S corporation case directly: “You received wages in 2025 from an S corporation in which you were a more-than-2% shareholder. Health insurance premiums paid or reimbursed by the S corporation are shown as wages on Form W-2” (Form 7206 instructions). The premiums go on line 1; an S corporation shareholder skips the net-profit lines and enters Medicare wages from box 5 on line 11; line 14 takes the smaller of the premiums and that wage figure. The deduction cannot also be counted toward medical expenses on Schedule A (IRC 162(l)(3)).

The limits in IRC 162(l)

• Capped at earned income from the S corporation. The deduction cannot exceed the earned income from the business under which the plan is established, and for a 2% shareholder the statute treats wages from the S corporation as that earned income (IRC 162(l)(2)(A) and (5)(A)). Form 7206 measures it by box 5 Medicare wages, which exclude the premiums themselves, so a $30,000 salary caps the deduction at $30,000 even if the family policy costs more.
• No deduction for any month of eligibility for a subsidized employer plan. If you, your spouse, a dependent or a child under 27 could have joined a subsidized plan of an employer in a given month, that month's premiums are out, “even if you didn't actually participate” (IRC 162(l)(2)(B); Form 7206 instructions).
• Paid or reimbursed by the corporation, in the same year, on the W-2. Notice 2008-1, example 1: a shareholder who buys the policy personally and is never reimbursed gets no deduction. The three other examples in the notice all pass because the corporation either paid or reimbursed and reported.
• Marketplace coverage with the premium tax credit needs the extra computation in Publication 974, which the Form 7206 instructions flag.

Medicare premiums

The Form 7206 instructions say “Medicare premiums you voluntarily pay to obtain insurance in your name that is similar to qualifying private health insurance can be used to figure the deduction.” For a 2% shareholder the same establishment rule applies: if the policy is in your name and you pay the premiums, “the S corporation must reimburse you and report the premium amounts in box 1 of Form W-2 as wages,” or the plan is not considered established under the business. So the Medicare premiums drawn from a Social Security check still have to be reimbursed by the corporation and run through the W-2 to be deductible under section 162(l).

HSA contributions for 2% shareholders

The partnership treatment reaches HSAs too. Notice 2005-8 says contributions an S corporation makes to a 2% shareholder's HSA for services “are treated as guaranteed payments under section 707(c),” deductible by the corporation and included in the shareholder's income; they are wages for income tax withholding on the W-2 but not FICA wages if the section 3121(a)(2)(B) plan test is met, and the shareholder, if an eligible individual, deducts the contribution as an adjustment to income (Notice 2005-8, Q&A-3; Publication 969). Publication 15-B adds that 2% shareholders “aren't eligible for salary reduction (pre-tax) contributions to an HSA” through a cafeteria plan (Publication 15-B). For 2026 the contribution limits are $4,400 for self-only and $8,750 for family coverage, with a high-deductible plan defined by a deductible of at least $1,700 or $3,400 (Rev. Proc. 2025-19; IRC 223).

Why a 2% shareholder cannot use a QSEHRA, an ICHRA or a health FSA

All three arrangements exclude reimbursements from an employee's income, and a 2% shareholder is not an employee for that purpose. The IRS page states each result: “A 2-percent S corporation shareholder-employee is not eligible to participate in a QSEHRA” (citing Notice 2017-67 and IRC 1372); a 2% shareholder “is not able to participate in an HRA or other self-insured arrangement as the exclusion under section 105(b) is limited to employees,” which covers the individual coverage HRA; and a 2% shareholder is not an employee for section 125 and so cannot take part in a flexible spending arrangement (IRS S corporation compensation page). The corporation can still sponsor those arrangements for its other staff, and Publication 15-B marks the other exclusions that skip 2% shareholders, such as group-term life insurance, meals and lodging on the premises. The arrangement that works for the owner is the one in this post: pay or reimburse the premiums, put them on the W-2, deduct them on Form 7206.

One interaction to keep in view: the premiums the corporation deducts as compensation already reduce the ordinary income on your K-1, and with it your qualified business income. The regulations treat the section 162(l) deduction as attributable to the business “to the extent that the individual's gross income from the trade or business is taken into account in calculating the allowable deduction” (Treas. Reg. 1.199A-3(b)(1)(vi)). The QBI computation itself is in what is the QBI deduction.

Sources: IRS, Notice 2008-1, special rules for health insurance costs of 2-percent shareholder-employees; IRS, S corporation compensation and medical insurance issues (reviewed March 3, 2026); 26 U.S.C. 162(l), health insurance costs of self-employed individuals; 26 U.S.C. 1372, partnership rules to apply for fringe benefit purposes; 26 U.S.C. 318, constructive ownership of stock; 26 U.S.C. 3121(a)(2), wages (payments under a plan for sickness or medical expenses); 26 U.S.C. 223, health savings accounts; IRS, Form 7206 (2025), Self-Employed Health Insurance Deduction; IRS, Instructions for Form 7206 (2025); IRS, General Instructions for Forms W-2 and W-3 (2026); IRS, Instructions for Form 1120-S (2025); IRS, Publication 15-B (2026), Employer’s Tax Guide to Fringe Benefits; IRS, Notice 2005-8, health savings accounts (partners and 2-percent shareholders); IRS, Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans; IRS, Rev. Proc. 2025-19, 2026 HSA inflation adjusted amounts; 26 CFR 1.199A-3, qualified business income (other deductions). Figures and rules checked against these sources on September 26, 2026. This is general information, not tax advice for your situation. Tax services are provided by licensed tax professionals under a separate engagement agreement. BEG does not provide tax advice.