AWS Account Structure Considerations
A well-defined AWS account structure that your teams agree on will help you understand and optimize costs. As with tagging, it is important that you implement a deliberate account strategy early on and allow it to evolve in response to changing needs. With multiple accounts, an organization can manage costs by:
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Grouping resources that require different payment instruments
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Providing groups with different levels of administrative control over AWS resources
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Better controlling Reserved Instances for specific workloads
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Identifying untaggable costs such as data transfer
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Using accounts associated with different business units or functional teams
For many organizations, a consolidated billing strategy where all AWS accounts are paid
through one primary account facilitates simplified payments, maximizes volume discounts, and
enables the sharing of Reserved Instance benefits across linked accounts. AWS Organizations
