Overview

After purchasing a RocketMQ instance, you can change your billing mode to meet changing needs. Table 1 lists the billing items of RocketMQ instances.

**Table 1** Billing items of RocketMQ instances
Billing Item	Description	Reference
Instance specifications	Changing the billing mode of a RocketMQ instance will also change the billing mode of the instance specifications and storage space. Change the billing mode from pay-per-use to yearly/monthly to enjoy lower prices. By changing the billing mode from yearly/monthly to pay-per-use, you can reclaim some costs and use RocketMQ resources more flexibly. NOTE: The pay-per-use mode takes effect only after a yearly/monthly period expires.	Pay-per-Use to Yearly/Monthly Yearly/Monthly to Pay-per-Use
Storage space	The billing mode of storage space cannot be changed separately. It will be changed when the instance's billing mode is changed.	Pay-per-Use to Yearly/Monthly Yearly/Monthly to Pay-per-Use