Incorporator The Journal of U.S. Formation
Start Free Quiz
Editorial 8 MIN READ

Sole prop vs SMLLC in 2021: the federal reporting line shifts

Five years on, the liability-and-contracts case is unchanged, but a new FinCEN filing makes the SMLLC side of the ledger heavier

The Editors
Staff, Incorporator.org
8 min read Updated
Contents 6 sections
  1. What is actually new in 2021
  2. The 2016 triggers, re-audited
  3. The federal-reporting math, now on the ledger
  4. When the answer flips the other way
  5. Rule of thumb
  6. Sources

witch from sole proprietorship to a single-member LLC the first time you sign an obligation that outlives the business. That rule is the same in 2021 as it was in 2016. What changed on January 1, 2021 is that an SMLLC now comes with a federal disclosure filing the sole prop does not, and the tax side of the ledger (the §199A deduction, the disregarded-entity default) treats the two forms the same way it always has.

This is the five-year update to the 2016 piece on the same question. The triggers that move a freelancer off a Schedule C have not moved. The federal paperwork map has.

What is actually new in 2021

On January 1, 2021, Congress overrode a presidential veto and enacted the William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021, Pub. L. 116-283. Buried in Title LXIV of that bill is the Corporate Transparency Act, which adds a new reporting regime codified at 31 USC § 5336. It is the first time the federal government has required a disclosure tied directly to the act of forming a state-law entity.

The statute defines a "reporting company" as any corporation, LLC, or other similar entity created by filing a document with a secretary of state or equivalent office, or formed abroad and registered to do business in the United States. Every reporting company must submit to the Financial Crimes Enforcement Network, for each beneficial owner and for each applicant, a legal name, a date of birth, a current residential or business street address, and a unique identifying number from an acceptable identification document. A beneficial owner is defined as an individual who either exercises substantial control over the entity or owns or controls at least 25 percent of the ownership interests.

The exemptions run long and cover most of the entities that already file with a federal regulator: SEC-registered issuers, banks, registered investment advisers, broker-dealers, insurance companies, IRC § 501(c) tax-exempts, and large operating companies with more than 20 full-time U.S. employees and more than $5 million in gross receipts reported on a prior-year return. A single-member LLC with one owner and modest revenue is not any of those things. The standard small-business SMLLC is squarely inside the reporting population.

A sole proprietorship, by contrast, is not created by filing a document with a state office. It is not a reporting company. It files nothing with FinCEN. That asymmetry is new, and it is the single most consequential change to this decision since the 2016 write-up.

Two honest caveats on timing. First, the statute directs Treasury to write implementing regulations within one year of enactment, with compliance deadlines inside those regulations. As of this June, the rule is not yet final and the reporting forms do not yet exist. FinCEN opened a notice of proposed rulemaking on April 5 (86 Fed. Reg. 17557) asking for comment on who counts as a beneficial owner, what counts as substantial control, and how existing companies should be phased in. The clock has started, but nobody is filing yet.

Second, the reporting burden is ongoing rather than one-time. Updates are required when the reported information changes. That is the part most likely to trip up a solo operator who forms an LLC, moves twice, changes their driver's license, and forgets the federal registry exists.

The 2016 triggers, re-audited

The list of events that justify forming an SMLLC has not changed in five years. The first vendor contract with real indemnification language. The first employee. The first inventory commitment at a scale that creates unsecured debt. The first commercial lease. The first enterprise client whose procurement department will not contract with a natural person. If any of those is happening this quarter or next, form the LLC before you sign, not after.

The reason is still containment of business liability rather than tax savings. Treasury Regulation § 301.7701-3(b)(1)(ii) continues to classify a domestic eligible entity with a single owner as "disregarded as an entity separate from its owner" by default. The SMLLC files no separate federal return. Its income lands on the owner's Schedule C, exactly where it would have landed without the LLC. The entity can elect out of the default by filing Form 8832 (to be treated as a corporation) or, more commonly for small operators, Form 2553 (to be treated as an S-corp), but the election is optional and separate from the state formation. Nothing about the LLC itself shifts the tax result.

What did change on the tax side between 2016 and 2021 is the arrival of § 199A, the qualified-business-income deduction enacted in the 2017 Tax Cuts and Jobs Act. Through 2025, eligible pass-through income can qualify for a deduction of up to 20 percent. A sole prop reporting on Schedule C and an SMLLC disregarded into the same Schedule C get the same treatment. Neither form unlocks the deduction; neither form disqualifies it. The deduction follows the income, not the entity wrapper.

The thresholds matter because that is where the W-2-and-property limits and the specified-service-trade limits start to bite. For tax year 2021, Rev. Proc. 2020-45 sets the threshold amount at $164,900 for single filers and $329,800 for married filing jointly. Below those taxable-income numbers, the deduction is largely mechanical and form-agnostic. Above them, the W-2 wages paid by the business and the unadjusted basis of its qualified property start to cap the deduction; for specified service trades (health, law, consulting, financial services, and similar), the deduction phases out entirely within the phase-in range above the threshold.

The shape of that analysis is identical for a sole prop and an SMLLC. A consultant on a Schedule C with $200,000 of net income and no employees gets the same 199A haircut whether they filed a certificate of formation with the state or not. If §199A is the reason somebody is forming an LLC, that is the wrong reason.

The federal-reporting math, now on the ledger

For a small operator, the SMLLC side of the decision in 2021 carries costs the sole-prop side does not.

State filing and annual maintenance, as before: a formation fee, a registered agent, an annual report or franchise tax depending on the state. These are priced in hundreds of dollars a year, vary by state, and were the main friction in the 2016 analysis.

Federal CTA reporting, new: an initial beneficial-ownership report to FinCEN once the final rule takes effect, plus updates when the reported information changes. The report itself is not a tax filing and does not affect the §199A calculation. It is a compliance file maintained in a nonpublic federal database, accessible to law enforcement and, with consent, to financial institutions for customer due diligence. The cost is not the filing fee; FinCEN has indicated in the proposed rule that it does not intend to charge one. The cost is the time and the tail risk of forgetting to update it.

The statute treats the failure seriously. A willful failure to report, or a willful filing of false information, carries civil penalties of up to $500 per day of violation and criminal penalties of up to two years' imprisonment and a $10,000 fine. Those numbers are not a typo. A solo operator who lets the LLC lapse in attention, moves, and never updates the registry is, on the face of the statute, exposed to that kind of liability. Actual enforcement against small good-faith filers is unlikely to be draconian, but the statute is the statute.

The honest read: the CTA does not change whether to form an SMLLC when the contracts justify it. It changes the floor at which forming an SMLLC purely defensively, "just in case," stops being free. In 2016, a vacant LLC was a few hundred dollars a year and a Delaware franchise-tax postcard. In 2021, a vacant LLC is that plus a federal registry entry you are obligated to keep current. The sole prop remains a legitimate choice for a small operation without external obligations, and arguably more legitimate than it was five years ago.

When the answer flips the other way

The cases where a sole prop is the right answer are also updated, but only slightly.

A business that will close within a year and has no employees, inventory, or material contracts still does not need an entity. The case for skipping the LLC is stronger in 2021 because the CTA adds a federal compliance item on top of the state ones. A one-season side project should remain a Schedule C.

A business in a regulated profession that cannot use an LLC to shield against professional malpractice (law, medicine, architecture in many states) still needs a PLLC or PC rather than a plain LLC. The federal reporting piece does not change which professional form is available.

A business whose only reason for forming is personal-asset protection against a creditor chasing the owner individually, rather than liability containment for obligations the business itself signs, still needs a real lawyer who has litigated charging-order protection in the specific state. The SMLLC is not a general-purpose creditor shield, and in several states the case law is thin enough that it is not a reliable one even for its intended purpose.

What has genuinely shifted is the "form it now just in case" case. If the business has no contracts, no employees, no inventory, and no lease, the marginal liability benefit of an SMLLC is small. The marginal cost now includes an ongoing federal filing. Wait until a trigger actually fires.

Rule of thumb

Form the SMLLC the quarter you first sign a material third-party obligation. Do not form before that for §199A reasons (there are none) and do not form before that to look legitimate (you can issue a W-9 as a sole prop). Form it because the paperwork you are about to sign will exist longer than the business, and you want your name off the top of that paperwork when it does.

Sources

Keep reading

More from the journal.