How Much Does a DBA Cost in Connecticut? (2026)
A DBA (“doing business as”) in Connecticut costs $20, filed at the county clerk/recorder (county level). No newspaper publication is required. Registration renews: 5 years.
Verified July 2026 from official sources. How we verify fees.
What it costs and where to file in Connecticut
- Filing fee: $20
- Filed at: County level
- Newspaper publication: Not required
- Renewal: 5 years
Good to know
Filed with the town clerk where you do business; the application must be notarized. 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 Connecticut.
How Connecticut compares nationally
Across the 46 states that charge for a DBA filing, the average is about $36 (median $25). At $20, Connecticut ranks #13 of 46 from the cheapest — below the national average.
Frequently asked questions
How much does a DBA cost in Connecticut?
$20, filed at the county clerk/recorder (county level).
Where do I file a DBA in Connecticut?
You file at the county clerk/recorder (county level).
Does a Connecticut DBA expire?
Renewal: 5 years.