How Much Does a DBA Cost in Idaho? (2026)
A DBA (“doing business as”) in Idaho costs $25, filed with the Secretary of State (state level). No newspaper publication is required. Registration renews: none.
Verified July 2026 from official sources. How we verify fees.
What it costs and where to file in Idaho
- Filing fee: $25
- Filed at: State level
- Newspaper publication: Not required
- Renewal: None
Good to know
Assumed business names no longer expire or require renewal. 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 Idaho.
How Idaho compares nationally
Across the 46 states that charge for a DBA filing, the average is about $36 (median $25). At $25, Idaho ranks #19 of 46 from the cheapest — below the national average.
Frequently asked questions
How much does a DBA cost in Idaho?
$25, filed with the Secretary of State (state level).
Where do I file a DBA in Idaho?
You file with the Secretary of State (state level).
Does a Idaho DBA expire?
Renewal: None.