If you have an AWS individual account with an S3 bucket, you can use it as the starting point for creating your AWS Master Organization account.
Do the following to make it easy to set up multiple member accounts in your master organization account:
Make a list of the teams in your company that need their own member accounts.
Decide the owner for each new member account. Collect basic information, such as the owners email address, which can be used as the login identifier for the new account.
If you haven't already done so, set the IAM User and Role Access to Billing Information setting in your AWS account. See Setting Up an Individual AWS Account.
For more information on AWS Organization master accounts, see http://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_create.html.
- Go to the AWS Organizations console at https://console.aws.amazon.com/organizations.
- Login using the account credentials for your individual account.
- Click Create Organization.
- Select Enable All Features and click Create organization.
This displays the newly created AWS Organization master account. It contains useful information, including the owner's email address and the Account ID.