Health insurance is one of the biggest expenses many business owners face each year. Fortunately, if your business is structured as an S corporation, you may be able to deduct the cost of health insurance for yourself and your family—but only if you follow the IRS rules.
The good news is that nothing has changed for 2026. The tax laws continue to allow S corporation owners to deduct qualifying health insurance premiums which include Medicare and supplemental insurance. Unfortunately, every year business owners miss out on this deduction simply because they don’t handle the payments or reporting correctly.
Three Steps to Claim the Deduction
Qualifying for the deduction isn’t difficult, but it does require following three important steps.
First, the S corporation must establish the health insurance plan. This generally means the corporation either pays the insurance premiums directly or reimburses you if you’ve already paid them personally.
Second, the premiums must be reported on your W-2. Although the premiums are included as taxable wages in Box 1, they are generally not subject to Social Security or Medicare taxes.
Finally, you claim the deduction on your personal tax return as the self-employed health insurance deduction.
Miss one of these steps, and you could lose a valuable tax deduction.
The Mistake We See Most Often
One of the most common errors occurs when an S corporation owner simply pays the health insurance premiums out of a personal checking account and never has the corporation reimburse the expense.
While it may seem like a minor bookkeeping issue, the IRS does not view it that way. If the corporation never establishes the health insurance plan through payment or reimbursement, the deduction may be lost altogether.
Fortunately, this is an easy mistake to avoid when your bookkeeping and payroll are handled properly throughout the year.
Salary Matters, Too
Another important rule catches many S corporation owners by surprise.
To claim the full deduction, you generally must receive enough compensation from your S corporation. If your salary is too low—or if you don’t take a salary at all—the amount you can deduct may be limited or even eliminated.
This is one more reason why establishing a reasonable salary isn’t just about payroll compliance—it can directly affect your tax savings.
Family Members Can Complicate Things
Many family-owned businesses employ spouses, children, parents, or other relatives. What some owners don’t realize is that special tax rules can treat certain family members as shareholders, even if they don’t actually own stock in the company.
If these family members receive health insurance through the business, the reporting requirements may be different than you expect. Failing to handle those benefits correctly could cause both the corporation and the family member to lose valuable tax deductions.
If you employ family members, it’s worth reviewing your payroll and health insurance reporting before year-end.
Don’t Forget About Your Employees
If your S corporation offers health insurance benefits to employees, be careful how those benefits are provided.
Simply reimbursing employees for health insurance they purchase on their own can trigger substantial IRS penalties unless the arrangement is structured correctly. Depending on your situation, options such as a Qualified Small Employer Health Reimbursement Arrangement (QSEHRA) or an Individual Coverage HRA (ICHRA) may be appropriate.
These rules generally do not apply the same way to owners who own more than 2% of the S corporation, which is why it’s important to distinguish between owner benefits and employee benefits.
A Little Planning Goes a Long Way
The rules surrounding S corporation health insurance haven’t changed for 2026, but that doesn’t mean they’re simple. Something as straightforward as how premiums are paid, how payroll is processed, or how a family member is treated on the payroll can determine whether you receive the deduction—or lose it.
If you’re an S corporation owner, now is a great time to review your payroll, health insurance payments, and year-end tax strategy before W-2s are prepared. Making a few adjustments now can help ensure you receive every deduction you’re entitled to while avoiding costly mistakes.
When it comes to tax planning, it’s often the details that make the biggest difference.
Need Help?
If you’re an S corporation owner and aren’t sure whether your health insurance is being handled correctly, now is the time to review it. A quick conversation before year-end could preserve a valuable deduction and prevent costly corrections later.
For help, contact Saunders Tax & Accounting at http://www.saunderstax.com or call us at 301-714-2071. Open Monday – Thursday, 9 am to 5 pm. Awarded the Hagerstown Hot List 2026 and Hagerstown Chamber of Commerce “2023 Small Business of the Year” by providing a Less Taxing Life and More Prosperous Solutions since 1984!
