How Much Does a DBA Cost in Louisiana? (2026)
A DBA (“doing business as”) in Louisiana costs $75, filed with the Secretary of State (state level). No newspaper publication is required. Registration renews: 10 years.
Verified July 2026 from official sources. How we verify fees.
What it costs and where to file in Louisiana
- Filing fee: $75
- Filed at: State level
- Newspaper publication: Not required
- Renewal: 10 years
Good to know
Trade-name registration is optional for a sole proprietor and filed through geauxBIZ. A DBA lets a sole proprietor or existing business operate under a different name — it is not a business entity and offers no liability protection. If you want that, compare the cost of forming an LLC in Louisiana.
How Louisiana compares nationally
Across the 46 states that charge for a DBA filing, the average is about $36 (median $25). At $75, Louisiana ranks #43 of 46 from the cheapest — above the national average.
Frequently asked questions
How much does a DBA cost in Louisiana?
$75, filed with the Secretary of State (state level).
Where do I file a DBA in Louisiana?
You file with the Secretary of State (state level).
Does a Louisiana DBA expire?
Renewal: 10 years.