DBA vs LLC: what you actually get for the filing fee
One is a nickname your business trades under, the other is a legal person with its own tax ID and its own beneficial-ownership report
Contents 5 sections
DBA is a nickname. An LLC is a legal person. That single distinction explains almost every downstream difference in liability, tax treatment, and paperwork, and it is the one most first-time founders get wrong when they compare a DBA vs LLC at the county clerk's window.
Nothing about filing a DBA changes who owes the debts, who signs the contracts, or who the IRS sees on the return. An LLC changes all three, and, as of January 1, 2024, adds a federal beneficial-ownership filing that did not exist four weeks ago.
What a DBA actually is
"DBA" stands for "doing business as." In most state codes it is called a fictitious business name, an assumed name, or a trade name. It is a registration, not an entity. You are telling the public that a human being or an existing entity is transacting under a name other than its legal one.
California's version lives in Business and Professions Code sections 17900 through 17930. The statute defines a "fictitious business name" and requires a person who regularly transacts business in the state under a name that does not include the owner's surname to file a fictitious business name statement with the county clerk of the principal place of business, publish it in a local newspaper for four consecutive weeks, and renew every five years. County filing fees usually sit in the $26 to $60 range depending on the county, plus the newspaper's publication charge. The statute says nothing about creating an entity, because the statute does not create one.
Texas handles the same concept in Business and Commerce Code Chapter 71. A sole proprietor or partnership files an assumed name certificate with the county clerk of each county where the business has premises. A corporation, LLC, or other registered entity files with the Texas Secretary of State instead. Either way, the certificate is a public notice that names are being used, not a formation document.
New York's General Business Law section 130 imposes the same duty on anyone conducting business under a name other than their own: file a certificate with the county clerk where the business is conducted, before commencing. The fee schedule is set by CPLR and county practice; in most counties it runs in the low tens of dollars, with certified copies extra.
None of these statutes transfer liability. None of them change who owns the business. A DBA on top of a sole proprietorship is still a sole proprietorship; the owner is personally liable for business debts, and a creditor who sues sues the human. A DBA on top of an existing LLC is just a second name the LLC can trade under; the shield is whatever the LLC already had.
What an LLC actually is
An LLC is a statutory entity. When you file the certificate of formation or articles of organization with the state, the state creates a new legal person: it can sign contracts, hold property, sue and be sued, and owe its own debts. The members own interests in the entity; they do not own the entity's assets directly, and, absent misconduct, they are not personally on the hook for the entity's liabilities.
The shield is the point. It is also not absolute. New York's high court pierced the veil of a taxicab operator in Walkovszky v. Carlton, 18 N.Y.2d 414 (1966), when the owner had fragmented a fleet across a dozen undercapitalized corporations to dodge tort claims. Every state has its own piercing doctrine, usually gated on some mix of undercapitalization, commingling of funds, failure to observe formalities, and fraud. If you run the LLC like a personal checkbook, you will not get to hide behind it when a creditor comes calling. If you run it like a real company, the shield holds in the ordinary case.
Tax treatment is a separate question from liability. A single-member LLC is, by default, a disregarded entity for federal income tax under Treas. Reg. section 301.7701-3, meaning the IRS ignores it and the owner files a Schedule C exactly as a sole proprietor would. A multi-member LLC defaults to partnership treatment. Either can elect corporate or S-corporation treatment on Form 8832 or Form 2553. A DBA has no tax election to make, because the DBA is not an entity the IRS can classify. The return follows the underlying person or entity.
Where the costs actually land
Think in three buckets: formation, maintenance, and federal reporting.
Formation. A DBA is usually under $100 all-in, sometimes well under that, plus a newspaper notice in states like California that still require publication. An LLC's baseline state filing fee is higher and varies widely; most states sit somewhere between $50 and a few hundred dollars for the articles, with a mandatory registered agent who charges roughly $50 to $300 a year for a commercial service. California stacks its own line item on top: Revenue and Taxation Code section 17941 imposes an $800 annual franchise tax on every LLC doing business in California or registered with the Secretary of State, payable whether the LLC made a dollar or not. Delaware charges a flat $300 annual LLC tax under 6 Del. C. section 18-1107(b). Wyoming's annual report minimum is $60. Your home state has its own number; the point is that the LLC carries a recurring cost, and the DBA does not.
Maintenance. DBAs have renewal cycles (California's is five years, New York's varies by county, most states are in the three-to-ten-year range) and that is roughly the end of the paperwork. LLCs have annual or biennial reports, registered-agent renewals, franchise taxes where applicable, separate bank accounts, and a real operating agreement if you want the shield to hold up in a piercing fight.
Federal reporting. This is where 2024 rewrote the math. The Corporate Transparency Act's beneficial ownership reporting rule, codified at 31 CFR 1010.380 and administered by FinCEN, took effect January 1, 2024. Every "reporting company," which the rule defines to include domestic LLCs and corporations formed by filing with a secretary of state (absent an enumerated exemption), must report its beneficial owners to FinCEN. Entities that existed before January 1, 2024 have until January 1, 2025 to file their initial report. Entities formed during calendar year 2024 have 90 days from formation. Entities formed in 2025 and after have 30 days. The report names every individual who owns 25% or more of the entity or exercises substantial control, with date of birth, address, and an image of an identifying document. A DBA, because it is not an entity, is not a reporting company. A sole proprietorship operating under a DBA has nothing to file with FinCEN. An LLC does, and the civil penalty for willful non-filing is $500 per day, capped at $10,000, plus up to two years of prison for the worst cases.
That shift is the single biggest practical change in the DBA versus LLC calculus this decade. Before the CTA, the incremental federal paperwork of forming an LLC was essentially zero; the IRS treatment mirrored the sole proprietorship for single-member defaults. After the CTA, every new LLC carries a federal identity-disclosure obligation on top of the state filing. It is not onerous (the initial report takes most people under an hour through FinCEN's BOI E-Filing portal), but it exists, and it has teeth.
When each one is the right answer
Pick a DBA when you are a sole proprietor, your risk exposure is low, your revenue is small, and you want to trade under a name that is not your legal name. The freelance designer billing as "Harbor Studio," the plumber operating as "Ace Plumbing," the author writing under a pen name through a personal bank account: all fine DBA candidates. You get a name the bank will open an account under and the business cards will believe. You do not get a liability shield, a separate tax treatment, or a BOI obligation, because you have not created a separate person.
Pick an LLC when you have assets worth protecting, a counterparty who could realistically sue, an employee on payroll, a lease in the business's name, a bank covenant, or investors who will not touch a sole proprietorship. The annual cost is real, the BOI filing is real, but so is the shield. A rental-property owner, a two-person consulting shop with client contracts, a side business that sells a physical product: these are the cases where the LLC's recurring overhead is cheap insurance.
The mixed case is common and fine: form the LLC, and then file a DBA under the LLC to trade under a customer-facing name that differs from the formal entity name. "Smith Holdings LLC dba Harbor Studio" gives you the shield of the entity and the marketing freedom of the trade name. You pay both filing fees, but you get both benefits, and the BOI report is still a single filing because there is still only one reporting company.
For the specific mechanics of forming the LLC itself (fee schedules, Certificate of Formation, registered-agent market), the Delaware LLC formation 2016 guide walks through one jurisdiction in detail; the shape is similar across states, the numbers are not.
Rule of thumb: if a plaintiff's lawyer could credibly point at your personal assets, form the LLC; otherwise the DBA is enough.
Sources
- California Business and Professions Code sections 17900 through 17930 (fictitious business name statute), https://leginfo.legislature.ca.gov/faces/codes_displayText.xhtml?division=7.&chapter=5.&part=3.&lawCode=BPC
- Texas Business and Commerce Code Chapter 71 (assumed business or professional name), https://statutes.capitol.texas.gov/Docs/BC/htm/BC.71.htm
- New York General Business Law section 130 (conduct of business under assumed name), https://www.nysenate.gov/legislation/laws/GBS/130
- Walkovszky v. Carlton, 18 N.Y.2d 414 (1966), https://law.justia.com/cases/new-york/court-of-appeals/1966/18-n-y-2d-414-0.html
- Treas. Reg. section 301.7701-3 (entity classification election), https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-301/subject-group-ECFR6623d7627ddd4b1/section-301.7701-3
- 31 CFR 1010.380 (FinCEN beneficial ownership information reporting rule, effective January 1, 2024), https://www.ecfr.gov/current/title-31/subtitle-B/chapter-X/part-1010/subpart-C/section-1010.380
- FinCEN, "Beneficial Ownership Information Reporting Rule Fact Sheet," https://www.fincen.gov/boi
- California Revenue and Taxation Code section 17941 ($800 LLC annual tax), https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=17941.&lawCode=RTC
- 6 Del. C. section 18-1107 (Delaware LLC annual tax), https://delcode.delaware.gov/title6/c018/sc11/index.html