Welcome to the Iredell-Statesville Schools Online School Payments (OSP) portal. This service is provided to Iredell-Statesville Schools parents to facilitate payment for school fees for a variety of products and services. A 4% + $.35 per transaction fee will be added to the purchase price of a school purchase as a site service fee. This fee is not collected by ISS, but is a service fee of the company hosting and managing the site.