Iowa Code § 321F.4: Fees and expiration.

1. The license fee for a license to engage in the business of leasing vehicles in this state is thirty dollars for a two-year period or part thereof, to be paid at the time the application for a license is filed. If the application is denied, the amount of the fee shall be refunded to the applicant.

2. A license expires on December 31 of even-numbered years. A licensee shall have the month of expiration and the month after the month of expiration to renew the license. A person who fails to renew a license by the end of this time period and desires to hold a license shall file a new license application and pay the required fee.