Idaho Code § 63-2302
A license must be procured immediately before the commencement of any business or occupation liable to a license tax from the treasurer of the county where the applicant desires to transact the business which license authorizes the party obtaining it in his particular locality in the county to transact the business described in the license. Separate licenses must be obtained for each branch, establishment or separate house of business located in the same county.
No license issued under this chapter shall be required of any person to carry on any business within the limits of any incorporated city having power by its charter to impose or levy city license taxes, if such person procures the license required by the ordinances or orders of such city.
Idaho Code § 63-2302