IaaS billing is a method of charging customers based on their use of the service. This is different from traditional software licensing where the customer pays for a product and installs it on their own servers. With IaaS billing, the customer pays for a service that provides access to virtual machines, storage and other resources over the Internet.
IaaS billings are typically based on usage, which means that you pay only for what you use. The cloud provider charges you based on CPU utilization, memory consumption and storage usage. You can also set limits so that you don’t go over budget in case you’re not sure what kind of usage your application will require.