By setting up your accounts with AWS Organizations, you can consolidate your AWS bill so that you are not being charged separately for each of your child accounts. You get one bill for all the accounts and you can easily track the charges from a single place. By combining accounts, you will save money by sharing volume discounts and reserved instance pricing.
Setting up consolidated billing
How to do it...
All you have to do to enable consolidated billing is create a master account in AWS Organizations (or via Control Tower, as described earlier in this chapter). The master account will be automatically configured to receive the bill for all subordinate accounts. For billing purposes, all accounts will be treated as one account...