We will create a monthly EC2 actual cost budget, which will notify if the actual costs of EC2 instances exceeds the specified amount.
Click Create budget:
Select Cost budget, and click Set your budget >:
Create a cost budget, enter the following details:
Type Elastic in the search field, then select the checkbox next to EC2-Instances(Elastic Compute Cloud - Compute) and Click Apply filters:
De-select Upfront reservation fees, and click Configure alerts >:
Review the configuration, and click Create:
You can see the current amount exceeds the budget (it is red, you may need to refresh your browser):
You will receive an email similar to the previous budget within a few minutes.
You have created an actual cost budget for EC2 usage. You can extend this budget by adding specific filters such as linked accounts, tags or instance types. You can also create budgets for services other than EC2.