Short answer: Must be distinguishable and include Limited Liability Company or LLC.
We've pulled these figures from the Idaho Secretary of State's own pages. If something's changed since our last check, the state's portal wins, so it's worth a quick look before you pay.
Idaho naming rules
Must be distinguishable and include Limited Liability Company or LLC.
Open the official Idaho name search
Reserving a name
Idaho lets you reserve a name for $20, which holds it for 120 days.
Doing business under another name
Idaho DBAs are filed with: state. Fee: $25 online or $45 on paper.
How Idaho compares
Idaho's name reservation fee is $20. That's the 15th lowest of 50 jurisdictions we track. The national median is $25, so Idaho comes in $5 under it.
| State | Fee | National rank (1 = highest) |
|---|---|---|
| Idaho | $20 | 33 of 50 |
| Montana | $10 | 41 of 50 |
| Nevada | $25 | 18 of 50 |
| Washington | $30 | 13 of 50 |
| Oregon | $100 | 1 of 50 |
| Wyoming | $60 | 4 of 50 |
Idaho fees that apply here
| Filing | State fee | Notes |
|---|---|---|
| Certificate of Organization | $100 | $100 online. $20 manual processing surcharge on paper forms, bringing mail-in cost to $120. |
| Name reservation (optional) | $20 | 120 days |
| Amendment | $30 | |
| DBA / assumed name | $25 online or $45 on paper | state |
Name search and rules: Idaho questions
How do I check if an LLC name is available in Idaho?
Use the official Idaho Secretary of State business search. A name that's distinguishable from existing records can usually be registered.
What words must an Idaho LLC name include?
Must be distinguishable and include Limited Liability Company or LLC.
Can I reserve an LLC name in Idaho?
Yes. Reservation costs $20 and holds the name for 120 days.
Do I need a DBA in Idaho?
Only if you'll do business under a name other than your exact LLC name. DBAs are filed with: state. Fee: $25 online or $45 on paper.
Sources and verification
Last checked against official state sources on . States change fees with little notice, so confirm on the filing portal before you pay. How we verify.