(1) Any fees imposed on a residential tenant, including fees for the late payment of rent, shall be reasonable.
(2)  An owner may not charge to the tenant of a rental property a fee, fine, assessment, interest, or other cost:
(a)  In an amount greater than that agreed upon in the rental agreement; or
(b)  That is not included in the rental agreement, unless:
(i)   The rental agreement is an oral agreement; or
(ii)  The rental agreement is written, and the owner provides the tenant a written thirty (30) day notice of the change in the fee, fine, assessment, interest, or other cost.

Terms Used In Idaho Code 55-314

(3)  The provisions of this section shall apply to rental agreements entered into or renewed on or after July 1, 2023.
(4)  Nothing in this section shall be construed to limit the amount that can be charged for rent.