Enabling AWS tags for billing

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Recently I began tagging resources in my primary AWS account. I use this account as a playground where I can experiment with services and occasionally host side projects.

As I’ve recently hosted new projects, I figured it was time to have a better understanding of costs, hence the decision to implement tagging.

AWS offers a suite of services and tools called Cloud Financial Management, among which is AWS Cost Explorer.

AWS Cost Explorer is a tool that allows you to analyze the costs and usage of your AWS resources. It provides a user-friendly interface to visualize your data, allowing you to manipulate several parameters to customize your reports. You can adjust the time period, group data by various dimensions, and filter data based on different criteria.

One such criterion for grouping and filtering data is Tags.

So I tagged my resources, but I was surprised to realize that the tags were not included among the filters.

Turns out, you have to activate tags to make them show up.

In many projects I’ve worked on, there’s usually a team that handles costs behind the scenes. So even though I’ve spent a lot of time with AWS Cost Explorer, I didn’t realize I needed to activate tags myself.

Let’s see how to enable tags for cost allocation.

Enabling tags for billing
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Log in into your console and navigate to Billing and Cost Management.
In the side menu, go to the Cost Organization section and click on Cost Allocation Tags.

You will see a view with two tabs:

User-defined cost allocation tags: where tags defined by you are listed.
AWS generated cost allocation tags: where tags automatically generated by AWS, depending on the services you’ve used, are listed.

Example:

As mentioned before, this is my experimental account, so the tags I’ve created are somewhat random. I recommend utilizing tag categories suggested by AWS You can find them here.