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Editorial 6 MIN READ

The sole proprietorship, reappraised for the BOI era

The form nobody talks about is the only common operating vehicle that files nothing with anyone

The Editors
Staff, Incorporator.org
6 min read Updated
Contents 5 sections
  1. What a sole proprietorship actually is
  2. The 2023 tax mechanics
  3. Why the CTA changes the frame
  4. When the sole prop stops making sense
  5. Sources

sole proprietorship is what you already have if you sell anything as a human being and have not formed anything. No filing, no EIN, no state fee, no annual report. One person, one trade or business, one Schedule C.

That used to be a minor footnote. With the Corporate Transparency Act's beneficial-ownership reporting regime switching on January 1, 2024, it has become a feature worth reappraising in its own right. Of the common operating vehicles available to a United States resident in late 2023, only the sole proprietorship and the general partnership escape the BOI filing entirely, because the CTA's reporting obligation at 31 U.S.C. § 5336(a)(11)(A) attaches to entities "created by the filing of a document with a secretary of state or a similar office." A sole prop is created by conduct. There is no filing to attach to.

What a sole proprietorship actually is

It is the federal tax default for a single individual carrying on a trade or business without having formed a separate entity. The IRS describes it in Publication 334 as a business "owned and operated by one individual." Income and expenses go on Schedule C of Form 1040. Net earnings flow to Schedule SE for self-employment tax. The owner uses a Social Security number unless they hire employees, run a qualified retirement plan, or owe excise tax, in which case an EIN is required (per Form SS-4 instructions).

There is no legal separation between the owner and the business. The owner's personal assets are reachable by business creditors, and the business's assets are reachable by personal creditors. This is not a rhetorical flourish; it is the structural trade the form makes. In exchange for zero formation cost and zero maintenance, you get unlimited personal liability. A customer slip-and-fall, a vendor judgment, a professional malpractice claim, all of them land on the owner's individual balance sheet.

Most states allow a sole prop to operate under an assumed name (DBA / fictitious business name) by filing with the county or state. That filing registers the name; it does not create an entity. The IRS, the state tax authority, and the courts still see one natural person.

The 2023 tax mechanics

Self-employment tax under IRC § 1401 is the headline cost. The combined rate is 15.3% on net earnings from self-employment: 12.4% for Social Security and 2.9% for Medicare. The Social Security portion applies only up to the annual wage base, which the Social Security Administration set at $160,200 for 2023. Above that, the 2.9% Medicare component continues uncapped. An additional 0.9% Medicare tax under IRC § 1411 kicks in on earned income above $200,000 for single filers and $250,000 for married filing jointly.

A concrete number. A sole prop with $100,000 of net earnings owes roughly $14,130 in SE tax (the calculation nets out the 7.65% employer-equivalent deduction before applying 15.3%, which is why it is not a clean $15,300). On top of that sits ordinary income tax at the filer's marginal rate.

Section 199A of the Internal Revenue Code, the qualified business income deduction, is available to a sole prop in the same way it is available to a pass-through LLC. For tax year 2023 the phase-in thresholds, updated by the IRS in Rev. Proc. 2022-38, are $182,100 for single filers and $364,200 for married filing jointly. Below those thresholds the deduction is 20% of QBI without the specified-service-trade limitation or the W-2 wage limitation; above them the limitations phase in.

The 1099-K question is the one most sole props actually hit in 2023. Section 9674 of the American Rescue Plan Act amended IRC § 6050W to lower the third-party settlement organization reporting threshold from $20,000 and 200 transactions to $600 with no transaction floor. The IRS delayed enforcement for tax year 2022 in Notice 2023-10. As of this writing, the $600 threshold remains the stated rule for TY 2023; the IRS has signaled that further guidance may come. A Schedule C filer who takes payments through Venmo, PayPal, Etsy, eBay, or Stripe should plan on receiving a 1099-K and should reconcile it against their own books before filing.

Why the CTA changes the frame

Beginning January 1, 2024, every "reporting company" under the Corporate Transparency Act must file beneficial-ownership information with FinCEN. The definition at 31 U.S.C. § 5336(a)(11)(A) covers corporations, LLCs, and "other similar entity" created by a state filing. It does not cover sole proprietorships. It does not cover general partnerships in states where partnership formation does not require a state filing (which is most of them, under the Uniform Partnership Act's formation-by-conduct rule).

This does not make the sole prop a privacy vehicle. The IRS still sees every dollar through the 1040. State tax authorities still see sales tax. Customers still see the owner's name on invoices. What it means is narrower and more practical. The BOI filing itself (name, date of birth, residential address, and an image of an identifying document for each beneficial owner, per the FinCEN final rule published at 87 Fed. Reg. 59498 on September 30, 2022) is not triggered by conducting business as a sole prop.

For a one-person operation that does not need a liability shield, that is one fewer form and one fewer database that holds a residential address. That matters more to some owners than to others.

When the sole prop stops making sense

Two switch points are worth naming with approximate numbers.

The first is liability exposure. The moment a business interacts with third parties in a way that could produce a judgment larger than the owner is prepared to lose, the sole prop is the wrong form. A freelance writer with two clients and a laptop is not that business. A dog walker with keys to twenty apartments, a caterer serving at events, a contractor doing work that leaves physical traces, a professional giving advice that could be wrong, all of them should have an LLC. The LLC costs $50 to $300 a year to maintain in most states and converts the liability exposure from personal-balance-sheet to entity-balance-sheet, subject to adequate capitalization and no piercing.

The second is the S-election. Once net earnings from self-employment sit comfortably above the owner's reasonable salary for the work, the SE tax on the margin becomes a real number. The rough switch point in the current wage-base environment is around $60,000 to $80,000 of net earnings, where the S-corp's ability to split compensation between W-2 wages (subject to payroll tax) and distributions (not subject to SE tax) begins to clear the incremental cost of payroll processing, separate bookkeeping, and a separate return. The mechanics require an actual entity; a sole prop cannot elect S status without first forming a corporation or an LLC and filing Form 2553.

The calculus is not new. What is new is that for the segment of the market that legitimately belongs in the sole-prop form, 2024 brings a reporting regime that does not touch them, at the same moment that the LLC route acquires a small but real annual disclosure cost. That is enough to move some marginal formations back to the default.

Sources

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