Stopped instances do not incur charges, but Elastic IP addresses or EBS volumes attached to those instances do. ... To delete an EBS volume that you no longer need, see Deleting an Amazon EBS volume.

What happens if you stop an EC2 instance?

Stop Instance

When you stop an EC2 instance, the instance will be shutdown and the virtual machine that was provisioned for you will be permanently taken away and you will no longer be charged for instance usage. ... When you start a stopped instance the EBS volume is simply attached to the newly provisioned instance.

Will stopping an instance save money?

AWS EC2 Stop Instances Use Cases

Save money by turning resources off when not needed – for example, turning non-production resources off on nights and weekends. ... You can only modify the instance type, user data, kernel, and RAM disk when an instance is stopped.