Arizona DBA (Doing Business As) Guide (2026)
Arizona does not require trade name / DBA registration. Registration with the Arizona Secretary of State is voluntary -- $10, valid 5 years, renewable -- and there is no county DBA filing. Sole proprietors, LLCs, and corporations may operate under a trade name without filing anything.
The one thing to knowRegistering a trade name does not create exclusive rights to the name -- it only adds public notice.
The process
- Decide whether to register
Trade name (DBA) registration is optional in Arizona -- you can operate under a trade name without filing anything.
- Register with the state (optional)
If you choose to register, it is with the Arizona Secretary of State, not the county -- there is no county DBA filing in Arizona.
- Pay the fee
Voluntary registration is $10, valid 5 years, and renewable.
DBA filing by county — all 15 Arizona counties
Arizona-specific details
Voluntary trade name registration does not create exclusive rights to the name -- it only adds public notice. Sole proprietors, LLCs, and corporations may operate under a trade name without filing anything at the county.
What to bring
- Your desired trade name
- Owner or entity information
- The $10 fee, if you choose to register with the state
Frequently asked questions
Do I have to register a DBA in Arizona?
No. Arizona does not require trade name / DBA registration.
Is there a county DBA filing?
No. There is no county DBA filing in Arizona. Voluntary registration is with the Arizona Secretary of State.
How much does voluntary registration cost?
$10, valid 5 years, and renewable.
Does registering protect my name?
No. It does not create exclusive rights to the name -- it only adds public notice.
Can I use a trade name without registering?
Yes. Sole proprietors, LLCs, and corporations may operate under a trade name without filing anything.