Guide · 2026 rules

S corp health insurance: the 2% shareholder rule

As a sole proprietor you deduct your health insurance premiums on your own return. After an S election, the IRS treats you as a “2% shareholder,” and the premiums have to run through the corporation first to stay deductible. Here is how that works, step by step.

Updated October 24, 20268 official sources

In short

The S corporation pays or reimburses your premiums, and they count as wages in box 1 of your W-2.
They are not wages for Social Security, Medicare or FUTA: boxes 3 and 5 leave them out.
You then take the self-employed health insurance deduction on your own return.
No deduction if you or your spouse could join a subsidized employer plan. And a 2% shareholder can’t use a QSEHRA.

Who is a 2% shareholder

The IRS has special health insurance rules for an S corporation owner who holds more than 2% of the stock and also works in the business: a “2-percent shareholder-employee.” A one-owner S corporation’s owner always is one.

Before the election

As a sole proprietor or single-member LLC owner, you may be able to deduct the premiums you pay for yourself as the self-employed health insurance deduction. It lowers your income tax. It does not lower your self-employment tax: you can’t subtract it when figuring net earnings for self-employment tax.

After the election: three steps

1. The corporation pays or reimburses the premiums

For the deduction to work, the plan must be established by the S corporation. That means either the corporation pays the premiums, or you pay them, give the corporation proof, and it reimburses you in the same tax year.

2. The premiums go in your W-2 wages

The corporation deducts the premiums and adds them to your wages in box 1 of your W-2. They are not included in boxes 3 or 5: for Social Security, Medicare and FUTA, the health insurance is excluded from a 2% shareholder’s wages. So it adds income tax wages but no payroll tax.

3. You take the deduction on your own return

You then claim the self-employed health insurance deduction on your own return, which offsets the premiums included in your W-2. The Form 7206 instructions note that for a more-than-2% shareholder, premiums paid or reimbursed by the S corporation are shown as wages on Form W-2.

When the deduction isn’t allowed

A subsidized plan was available. If you or your spouse was eligible to join any subsidized health plan, such as through a spouse’s employer, you are not entitled to the deduction.
A QSEHRA. A 2-percent S corporation shareholder-employee is not eligible to participate in a qualified small employer health reimbursement arrangement.

Does it change the S-election math?

Barely. Before the election the premiums are deductible on your return; after it, they are deductible again through the steps above, and they carry no payroll tax either way. The calculator leaves them out for that reason: in our tests they moved the result by a few dollars at most. What matters is doing the steps, so the deduction isn’t lost.

How to pay yourself covers salary and distributions, and the accountable plan covers repaying other expenses you pay yourself.

See what the S election would do for your business.Profit, state and salary. Two minutes, nothing sent anywhere.

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Sources

Every figure was read on an official page and checked a second time. Checked October 24, 2026. How we check facts.

An explanation of public rules, not tax advice.

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