Paying your health premiums from the S-corp checking account is not the same as deducting them.
If you own more than 2% of the S-corp, the IRS treats you more like a partner than a rank-and-file employee for medical coverage. Do the W-2 step wrong and you either lose the deduction or you under-report wages. Both are sloppy.
This is a basic tool, not a cash-balance plan. Under $400K, getting premiums and an accountable plan right usually beats shopping exotic shelters. Over that line, health costs are still a real expense. You just don't get to invent a rule because a YouTube clip said "write off your family plan."
Think brain surgeon vs general doctor. Health insurance on an S-corp is a specialist form, not "medical" in the chart of accounts and hope.
How the deduction actually works
The company establishes a plan and pays the premiums (or reimburses you under that plan) for the more-than-2% shareholder.
Those premiums go in Box 1 of your W-2 as wages. If it's done the usual way, they are not hit with Social Security and Medicare tax (Boxes 3 and 5 stay cleaner than a bonus). Then on your 1040 you take the self-employed health insurance deduction for that same amount, subject to the income limits.
You do not also deduct those premiums as a company fringe the way a C-corp deducts coverage for regular employees. That's the trap.
| Piece | What happens |
|---|---|
| Company | Pays or reimburses qualifying premiums under a plan |
| W-2 Box 1 | Includes the premiums as wages for the 2% shareholder |
| FICA (typical setup) | Premiums in Box 1 but not in Social Security / Medicare wages |
| Form 1040 | Self-employed health insurance deduction (not a second company deduction) |
| Family / spouse | Can fit, with extra rules if the spouse has other coverage or a separate business |
Takeaway: the W-2 is the bridge. No bridge, no clean deduction.
Example: You pay yourself a $80K reasonable salary. Family premiums are $18K for the year, paid by the S-corp. W-2 Box 1 shows $98K. Boxes 3 and 5 stay at $80K if payroll is coded right. On the 1040 you deduct $18K as self-employed health insurance, limited by the business's earned income. Net: the premiums came out of the company, you didn't pay extra FICA on them, and they still reduced taxable income on the 1040.
Skip the W-2 and expense "health insurance" on the 1120-S like office snacks? That's how the deduction gets challenged.
What has to be true
- There is a plan. A random Venmo to the insurance company in December is not a plan.
- The S-corp pays it, or you pay it and the company reimburses under the plan in the same year.
- Premiums are health insurance (and qualifying dental/vision in the usual case), not every wellness subscription you like.
- You have enough earned income from the business for the 1040 deduction. The deduction can't create a loss from the business for this purpose.
- If you have a high-deductible plan, an HSA can sit next to this. HSA contribution limits are separate. Don't double-count the same dollar as premium and HSA.
This is not legal advice on whose name is on the policy. If the carrier or the state needs the policy in a certain name, that's a legal and insurance call. Let's get your attorney (and the broker) on it before we move.
What this is not
It is not a substitute for reimbursing office and mileage through an accountable plan. Medical premiums for 2% shareholders have their own W-2 path.
It is not a promise you'll pay zero tax because you have a PPO.
It is not QSEHRA / ICHRA theater copied from a C-corp blog. Those tools exist. They have eligibility tests. If you're a more-than-2% S-corp shareholder, don't assume a small-employer reimbursement arrangement works the same as it does for your editor on payroll.
Who this is for
S-corp owners who already run payroll and can show a real health policy. If you're still a default LLC on Schedule C, the self-employed health insurance deduction is simpler and you may not need this dance yet.
If the S-corp election isn't even timely, fix Form 2553 before you optimize premiums.
The short version
- More-than-2% S-corp owners don't deduct premiums like regular employees.
- Company pays. Amount hits W-2 Box 1. Then the 1040 deduction.
- FICA handling is part of the design. Payroll software has to be told.
- No plan and no W-2 reporting means a messy write-off.
- HSAs can stack with an HDHP. They don't replace the premium rules.
- Under $400K, this is a basic win. It is not a reason to skip clean books.
FAQs
Can an S-corp pay my health insurance?
Yes, if you're a more-than-2% shareholder and you report it correctly on the W-2, then take the self-employed health insurance deduction on the 1040. Paying the invoice from the company account without the W-2 step is the usual miss.
Does S-corp health insurance get hit with payroll tax?
When it's reported the standard way, the premiums go in Box 1 wages but typically not in Social Security and Medicare wages. That's why payroll coding matters. Treat it like a random bonus and you may pay FICA you didn't need to.
Can I deduct my spouse and kids?
Often family coverage is the point, with limits and coordination if someone has other employer coverage. The policy and the plan documents have to match what you deduct. Don't invent dependents on a spreadsheet.
What about an HSA with an S-corp?
If you have a qualifying high-deductible health plan, HSA contributions follow HSA rules (annual limits, catch-up at 55). Employer HSA contributions have their own payroll reporting. Don't mix HSA deposits with premium dollars on the same line and call it done.
Can I just reimburse medical bills under an accountable plan?
Premiums for 2% shareholders are a different statute than mileage and office. Out-of-pocket medical (not premiums) is usually not a tax-free accountable-plan item for you the way a regular employee medical reimbursement might work. Don't force it.
Is this worth it under $400K?
If you already have an S-corp and a real policy, yes, run it correctly. If you don't have the entity or the profit yet, don't elect S-corp just to "write off health insurance." You'd be paying to save money you might not be losing.
References
- IRS — S Corporation Employees, Shareholders and Corporate Officers
- IRS — Publication 15-B, Employer's Tax Guide to Fringe Benefits
- IRS — Publication 535, Business Expenses
- IRS — Health Savings Accounts
What to do next
If the S-corp pays the premium and your W-2 doesn't show it, that's the leak.
At CEOHAVEN, we help entrepreneurs and real estate investors with tax planning and tax preparation. We're proactive. We save you as much as we can on the tax bill, including the boring payroll lines that actually matter.
Book a call. We'll look at salary, premiums, and whether the W-2 is doing the job.
It's not about how much you make. It's about how much you keep.