November 4, 2026
Here is a question worth asking before your next tax season: if the IRS called each of your clients tomorrow and asked who they hired, what would they say? If the answer is your name rather than your company's name, your S corporation may not be doing the job you think it is.
Service professionals often elect S corporation status so they can draw a reasonable salary and take the rest of the profit as pass-through income, which can lower self-employment and payroll taxes. That benefit depends on a premise that is easy to overlook. The corporation, and not you as an individual, has to be the party that earns the revenue. When the paperwork says otherwise, the IRS can look past the entity and tax everything on Schedule C of your Individual return, self-employment tax included.
Tax law has long held that income belongs to whoever actually earns it, an idea rooted in Lucas v. Earl, a 1930 Supreme Court case. You cannot redirect what you earn simply by telling the money to land somewhere else. This is the assignment of income doctrine.
For a one-owner service business, the "earner" question is tricky, because the owner and the company are doing the same work through the same person. So the courts reframe it: who controls the earning of the income? Tax Court precedent (Johnson v. Commissioner, 78 T.C. 882 (1982)) gives the corporation credit only when two things are true at once. We find it helpful to think of them as an inside test and an outside test.
Failing either test is enough to lose. A useful comparison is a staffing agency. When a business wants a temporary worker, it signs with the agency, and the agency sends someone over. Nobody doubts the agency earned the revenue. If the business instead signed directly with the worker and the agency merely collected the checks, the agency would look like a mailbox rather than a business. Your S corporation needs to look like the agency.
The Tax Court applied this framework in Fleischer v. Commissioner, T.C. Memo. 2016-238. The taxpayer, Ryan Fleischer, was a Nebraska financial advisor and Certified Financial Planner who held securities licenses and insurance licenses. He had worked for an investment and planning firm and later a bank before setting up his own practice.
Notice the order in which his arrangements came together:
Neither outside contract was later amended to bring FWP in. For 2009 through 2011, FWP filed Form 1120-S reporting the commission revenue and its expenses, and Mr. Fleischer reported his FWP salary plus his share of FWP's profit. No self-employment tax was paid. The IRS concluded that FWP's gross receipts were really his self-employment income, reportable on Schedule C, and the Tax Court sided with the IRS.
The decision turned entirely on the outside test, so the court never had to rule on the inside test. LPL contracted with him before FWP existed, so it could not have viewed FWP as the party in control. MassMutual signed years after FWP was formed, yet the contract identified only him. No contract or other evidence showed either company treating FWP as the service provider.
The defenses raised in Fleischer are ones we hear from owners in other fields, which makes them worth understanding.
Practitioners have described a pattern that grows out of the same facts (see this piece in The Tax Adviser). An owner takes on a client as an individual, forms the S corporation afterward, and never gets the agreement reissued. The client keeps sending a Form 1099 in the owner's name, but deposits go into the corporate account. At filing time, the owner reports the 1099 amount on Schedule C and then deducts an equal amount as contract labor, so the net lands in the S corporation.
That approach balances the books, but it does not answer the outside test. Under the reasoning in Fleischer, the client never treated the corporation as its counterparty, so moving the cash afterward does not change who controlled the earnings. The cleaner solution is upstream: rewrite the independent contractor or services agreement so that the corporation is both the provider and the payee.
Use this list as a quick self-audit. Each item is a place where the outside world may see you rather than your company:
The fixes are mostly administrative, and most can be handled with your attorney in a short project:
If you are not sure your contracts and licensing support your S corporation, schedule a consultation with SMB CPA Group. We can review how your revenue is earned and documented, and work alongside your attorney on any agreements that need updating. You can also read more about the benefits of an S corporation or explore our business entity structuring resources.
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