The Billing dashboard is closely tied to the account itself, which is why it is not part of the regular services in the console. Accessing it via the user menu hints at the special access it requires. Generally, you would configure a budget when you first open a new AWS account, so you don't get any surprises in your bill at the end of the month.
If you get access denied messages in the Billing dashboard, it is most likely because you are using an IAM user and IAM access has not been enabled. You must use your root account credentials (such as that you used to create the account), or enable IAM access. IAM access can only be enabled by the root user.
When you first arrive at the billing section, you will see a high-level summary ...
