In last month’s article, 2026 Health Insurance for S Corporation Owners: A Complete Update, we walked you through the three-step W-2 method that locks in your self-employed health insurance deduction—and the two traps (the box 5 earned-income rule and the Section 318 family attribution rule) that quietly destroy deductions.

That article prompted a question: “What about my dental and vision policies? Do they get the same treatment?”

Yes. Exactly the same treatment. And if you are age 65 or older, your Medicare premiums join the party too.

This follow-up gives you the proof—with the tax code citations you (or your tax preparer or payroll provider) may want to see—and shows you how to run these premiums through your S corporation the right way.

Why the Law Treats Dental and Vision as Health Insurance

You will not find a tax code section titled “dental insurance” or “vision insurance.” You don’t need one. The chain of authority works like this.

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