| Alabama | trade name | Alabama Secretary of State (Application to Register or Renew a Trademark, Service Mark, or Trade Name, Form LAT-1) | Alabama Secretary of State as well, on the same trade name application; Alabama has no mandatory DBA filing, so registration is optional for any owner | Ala. Code § 8-12-6 et seq. |
| Alaska | business name registration | Alaska Department of Commerce, Community, and Economic Development, Division of Corporations, Business and Professional Licensing (Business Name Registration under AS 10.35) | Alaska Division of Corporations, Business and Professional Licensing (the same statewide business name registration applies to individuals and sole proprietors) | AS 10.35.010 |
| Arizona | trade name | Arizona Secretary of State (trade name registration; a separate agency from the Corporation Commission that holds the LLC) | Arizona Secretary of State (the same trade name registration) | A.R.S. § 44-1460 |
| Arkansas | fictitious name | Arkansas Secretary of State (Application for Fictitious Name, Form DN-18); the certificate returned by the Secretary of State is then recorded with the county clerk of the county where the LLC's registered office is located, except when that office is in Pulaski County | County clerk in each county where the business is conducted (sole proprietors and general partnerships file only at the county level) | Ark. Code § 4-38-122 |
| California | fictitious business name | County clerk of the county of the principal place of business | County clerk of the county of the principal place of business | Cal. Bus. & Prof. Code §§ 17900-17930 |
| Colorado | trade name | Colorado Secretary of State, online (Statement of Trade Name of a Reporting Entity) | Colorado Secretary of State, online (Statement of Trade Name of an Individual) | C.R.S. Title 7, Article 71 |
| Connecticut | trade name | Town clerk in each town where the business is conducted (there is no state-level DBA filing) | Town clerk in each town where the business is conducted, on the same trade name certificate | Conn. Gen. Stat. § 35-1a |
| Delaware | trade, business, or fictitious name | Prothonotary of the Superior Court in each Delaware county (New Castle, Kent, or Sussex) where the business is transacted (Registration of Trade, Business & Fictitious Name Certificate) | Prothonotary of the Superior Court in each county where the business is transacted (the same county-court registration applies to individuals and sole proprietors) | 6 Del. C. § 3101 |
| Florida | fictitious name | Florida Division of Corporations (Sunbiz) | Florida Division of Corporations (Sunbiz) | Fla. Stat. § 865.09 |
| Georgia | trade name | Clerk of Superior Court of the county of the entity's legal domicile | Clerk of Superior Court of the county where the business is chiefly carried on | O.C.G.A. § 10-1-490 |
| Hawaii | trade name | Hawaii Department of Commerce and Consumer Affairs, Business Registration Division (Application for Registration of Trade Name, Form T-1) | Hawaii Department of Commerce and Consumer Affairs, Business Registration Division (the same statewide trade name registration applies to individuals and sole proprietors) | HRS § 482-3 |
| Idaho | assumed business name | Idaho Secretary of State (Certificate of Assumed Business Name) | Idaho Secretary of State as well, on the same certificate; Idaho has no county-level DBA filing | Idaho Code § 30-21-805 |
| Illinois | assumed name | Illinois Secretary of State (Form LLC-1.20, Application to Adopt an Assumed Name) | County clerk in each county where the business is conducted (Assumed Business Name Act, 805 ILCS 405) | 805 ILCS 180/1-20; 805 ILCS 405/1 |
| Indiana | assumed business name | Indiana Secretary of State through INBiz (Certificate of Assumed Business Name) | County recorder in each county where the business is conducted (individuals and general partnerships do not file with the Secretary of State) | Ind. Code § 23-0.5-3-4 |
| Iowa | fictitious name | Iowa Secretary of State; an LLC that trades under a name other than its true name files a certified Fictitious Name Resolution (a resolution of its members or managers adopting the name) through Fast Track Filing | County recorder of each county where the business is conducted; sole proprietors and general partnerships record a verified trade name statement under Iowa Code ch. 547, which by its terms does not apply to LLCs, corporations, or limited partnerships | Iowa Code § 489.108 |
| Kansas | none; no registry exists | No office at any level. The Secretary of State's forms list states that no application registers an assumed, fictitious, trade, or DBA name. | No office; sole proprietors do not register with the Secretary of State at all. | Kansas SoS forms list (no assumed-name statute or form exists) |
| Kentucky | assumed name | Kentucky Secretary of State (Certificate of Assumed Name), and the certificate marked filed by the Secretary of State must then be recorded with the county clerk of the county where the LLC's registered office is located | County clerk of the county where the individual maintains the principal place of business | KRS 365.015 |
| Louisiana | trade name | Louisiana Secretary of State (Application to Register Trade Name, Trademark, or Service Mark, Form 309), filed through the GeauxBiz portal | Louisiana Secretary of State as well; individuals and partnerships register the same trade name centrally, and Louisiana has no county-level DBA filing | La. R.S. 51:211 |
| Maine | assumed name | Maine Secretary of State, Division of Corporations (Statement of Intention to Transact Business Under an Assumed or Fictitious Name, Form ASUM) | Municipal clerk of the city or town where the business is located (Maine has no state-level trade name filing for sole proprietors or general partnerships; they deposit a sworn certificate with the municipal clerk before commencing business, 31 M.R.S. §§ 1-2) | 31 M.R.S. § 1508 |
| Maryland | trade name | Maryland State Department of Assessments and Taxation (Trade Name Application) | Maryland State Department of Assessments and Taxation (the same statewide trade name registration applies to individuals and sole proprietors) | Md. Code, Corps. & Ass'ns § 1-406 |
| Massachusetts | business certificate | City or town clerk in every city or town where the business maintains an office (there is no state-level DBA filing) | City or town clerk in every city or town where the business maintains an office, on the same business certificate | M.G.L. c. 110, § 5 |
| Michigan | assumed name | Michigan Department of Licensing and Regulatory Affairs (LARA), Corporations, Securities & Commercial Licensing Bureau (Certificate of Assumed Name, Form CSCL/CD-541, MCL 450.4206) | County clerk of each county where the business is conducted (sole proprietors and general partnerships file an assumed name / co-partnership certificate under the county assumed name law) | MCL 450.4206 |
| Minnesota | assumed name | Minnesota Secretary of State (Certificate of Assumed Name, Minn. Stat. ch. 333) | Minnesota Secretary of State (the same Certificate of Assumed Name) | Minn. Stat. § 333.01 |
| Mississippi | fictitious business name | Mississippi Secretary of State, Business Services Division (online Fictitious Business Name Registration under the Fictitious Business Name Registration Act) | Mississippi Secretary of State, Business Services Division (the same statewide registration applies to sole proprietors) | Miss. Code § 75-93-7 |
| Missouri | fictitious name | Missouri Secretary of State (Registration of Fictitious Name) | Missouri Secretary of State as well, on the same fictitious name registration; Missouri has no county-level DBA filing | Mo. Rev. Stat. § 417.200 |
| Montana | assumed business name | Montana Secretary of State (Application for Registration of Assumed Business Name) | Montana Secretary of State (the same statewide assumed business name registration applies to individuals and sole proprietors) | Mont. Code Ann. § 30-13-202 |
| Nebraska | trade name | Nebraska Secretary of State (Application for Registration of Trade Name), followed by newspaper publication and proof of publication filed with the Secretary of State | Nebraska Secretary of State (the same statewide trade name registration applies to individuals and sole proprietors) | Neb. Rev. Stat. § 87-210 |
| Nevada | fictitious firm name | County clerk in each county where the business is conducted (not the Secretary of State) | County clerk in each county where the business is conducted, on the same certificate as entities | NRS 602.010 |
| New Hampshire | trade name | New Hampshire Secretary of State, Corporation Division (trade name registration, Form TN-1, under RSA 349) | New Hampshire Secretary of State (the same statewide trade name registration applies to individuals and sole proprietors) | RSA 349:1 |
| New Jersey | alternate name (entities); trade name (sole proprietors, county) | NJ Division of Revenue and Enterprise Services (Form C-150G, online or paper) | County clerk of the county where the business is located (trade name certificate) | N.J.S.A. 42:2C-9 |
| New Mexico | none; no statewide filing exists | No state office. New Mexico provides no method to register a DBA or trade name at the state level; a business simply uses the name. | No state office; the same is true for sole proprietors, who have no state or general county DBA registration to file. | NMSA 1978 Chapter 53 (no DBA registration statute exists) |
| New York | assumed name | New York Department of State, Division of Corporations (Certificate of Assumed Name, GBL § 130) | County clerk in each county where the business is conducted (GBL § 130) | N.Y. Gen. Bus. Law § 130 |
| North Carolina | assumed business name | Register of Deeds of a county where the business operates; one certificate can designate specific counties or all 100 | Register of Deeds of a county where the business operates (the same assumed business name certificate) | N.C.G.S. § 66-71.4 |
| North Dakota | trade name | North Dakota Secretary of State (Trade Name Registration through the FirstStop portal) | North Dakota Secretary of State (the same statewide trade name registration applies to individuals and sole proprietors) | N.D.C.C. § 47-25-01 |
| Ohio | trade name or fictitious name | Ohio Secretary of State (Form 534A) | Ohio Secretary of State (Form 534A) | Ohio Rev. Code §§ 1329.01-1329.10 |
| Oklahoma | trade name | Oklahoma Secretary of State (Trade Name Report, SOS Form 0021) | Oklahoma Secretary of State as well; individuals and partnerships file the same Trade Name Report centrally, and Oklahoma has no county-level DBA filing | Okla. Stat. tit. 18, § 1140 |
| Oregon | assumed business name | Oregon Secretary of State, Corporation Division (Application for Registration of Assumed Business Name) | Oregon Secretary of State, Corporation Division (the same application) | ORS 648.007; 648.017 |
| Pennsylvania | fictitious name | Pennsylvania Department of State, Bureau of Corporations and Charitable Organizations (Registration of Fictitious Name, Form DSCB:54-311) | Pennsylvania Department of State as well; individuals file the same fictitious name registration centrally, and there is no county-level DBA filing | 54 Pa.C.S. § 311 |
| Rhode Island | fictitious business name | Rhode Island Department of State, Business Services Division (Fictitious Business Name Statement, Form 624B, under § 7-16-9), filed through the online Corporate Filing System | Rhode Island Department of State (trade name registration; Rhode Island recently moved trade names from its 39 city and town clerks to the Department of State, though a trade name is still limited to one municipality) | R.I. Gen. Laws § 7-16-9 |
| South Carolina | none; no statewide filing exists | No state office. A trading name is registered locally, usually when the business licenses with its city or county. | No state office; the same local business-license path applies. | S.C. Code Title 33 (no DBA registration statute exists) |
| South Dakota | fictitious name | South Dakota Secretary of State (DBA / fictitious business name registration) | South Dakota Secretary of State as well, on the same DBA registration; some county Register of Deeds offices historically maintained business-name filings, but the Secretary of State runs the statewide registry | SDCL § 37-11-1 |
| Tennessee | assumed name | Tennessee Secretary of State (Application for Registration of Assumed Name, SS-4402) | Not filed with the Secretary of State; the state assumed-name registration is for entities (LLCs, corporations, LPs), and Tennessee has no statewide DBA registry for sole proprietors | Tenn. Code Ann. § 48-249-106 |
| Texas | assumed name | Texas Secretary of State (Form 503) | County clerk in each county where business is conducted | Tex. Bus. & Com. Code ch. 71 |
| Utah | DBA | Utah Division of Corporations and Commercial Code (DBA / assumed name registration) | Utah Division of Corporations and Commercial Code (the same DBA registration) | Utah Code Title 42, Chapter 2 (Conducting Business Under Assumed Name) |
| Vermont | assumed business name | Vermont Secretary of State (Assumed Business Name Registration) | Vermont Secretary of State (the same statewide assumed business name registration applies to individuals and sole proprietors) | 11 V.S.A. § 1621 |
| Virginia | assumed or fictitious name | Virginia State Corporation Commission (Certificate of Assumed or Fictitious Name, Form SCC59.1-70) | Virginia State Corporation Commission as well; since January 1, 2020 individuals file the same certificate centrally with the Commission, and the old circuit-court filing was eliminated | Va. Code § 59.1-69; § 59.1-70 |
| Washington | trade name | Washington Department of Revenue, Business Licensing Service (Business License Application via My DOR) | Washington Department of Revenue, Business Licensing Service (the same Business License Application) | RCW 19.80 |
| Washington, D.C. | trade name | DC Department of Licensing and Consumer Protection (DLCP), Corporations Division (Trade Name Registration, Form TN-1) | DC Department of Licensing and Consumer Protection (the same district-wide trade name registration applies to individuals and sole proprietors) | D.C. Code § 47-2855.02 |
| West Virginia | trade name | West Virginia Secretary of State, Business & Licensing Division (trade name/DBA registration, Form TN-1, filed through the One Stop Business Portal); the business must first be registered with the West Virginia State Tax Department | West Virginia Secretary of State (the same trade name registration; individuals and sole proprietors register with the State Tax Department and then the Secretary of State) | W. Va. Code § 47-8-2 |
| Wisconsin | trade name (optional ch. 132 registration) | Wisconsin Department of Financial Institutions (ch. 132 trade name or trademark registration, online); the filing is optional | The same optional DFI registration; no filing is required to trade under the name | Wis. Stat. ch. 132 |
| Wyoming | trade name | Wyoming Secretary of State (Application for Registration of Trade Name) | Wyoming Secretary of State (the same statewide trade name registration applies to individuals and sole proprietors) | W.S. § 40-2-105 |