Managing multiple Amazon Web Services (AWS) accounts can become complicated for startups, developers, agencies, and growing businesses. Separate billing statements, scattered resources, and difficulty tracking cloud expenses can make account management challenging.
Fortunately, AWS Organizations allows businesses to manage multiple AWS accounts under one organization and consolidate their billing. This helps simplify financial management, improve cost visibility, and organize cloud infrastructure.
In this guide, Udyamita Helpline explains how to combine multiple AWS accounts, the benefits of consolidated billing, and important things to consider before connecting your accounts.
What Does Combining Multiple AWS Accounts Mean?
Combining multiple AWS accounts does not mean merging them into one account. Instead, AWS Organizations allows you to bring multiple existing accounts under a single organization.
Through consolidated billing, the management account receives a combined bill for the accounts in that organization. Individual accounts can continue maintaining their own resources and workloads.
For example, a business may use separate AWS accounts for development, production, testing, and internal operations. By connecting these accounts through AWS Organizations, the business can manage billing more efficiently.
What Is AWS Organizations?
AWS Organizations is a service that helps businesses centrally manage multiple AWS accounts. It provides features for account management, consolidated billing, and organizational policies.
Some major benefits include:
- Consolidated billing: Receive a combined bill for multiple AWS accounts.
- Centralized management: Organize accounts from a central management account.
- Cost tracking: Review combined usage and account-level expenses.
- Potential cost savings: Eligible usage across accounts can contribute to volume pricing benefits and applicable Savings Plans or Reserved Instance discounts.
- Improved governance: Apply organizational policies to control access and manage resources.
These features make AWS Organizations useful for startups, enterprises, software developers, and businesses running multiple cloud environments.
How to Combine Multiple AWS Accounts Step by Step
Follow these steps to connect existing AWS accounts using AWS Organizations.
Step 1: Choose Your Management Account
First, select the AWS account that will manage your organization. This account is responsible for organization-wide settings and consolidated billing.
Choose an account that your business controls and secure it with multi-factor authentication (MFA).
Step 2: Open AWS Organizations
Sign in to the AWS Management Console using an administrator account.
Search for AWS Organizations and open the service. Select the option to create an organization and follow the on-screen instructions.
Review the billing and account-management implications before proceeding.
Step 3: Invite Existing AWS Accounts
After creating your organization:
- Open the Accounts section in AWS Organizations.
- Select the option to add or invite an AWS account.
- Enter the email address or AWS account ID of the account you want to connect.
- Send the invitation.
Repeat this process for each existing AWS account you want to include.
Step 4: Accept the Invitations
Sign in to each invited AWS account and accept the organization invitation.
Once an invitation is accepted, the account becomes a member of the organization, subject to AWS eligibility and account requirements.
An AWS account can belong to only one organization at a time.
Step 5: Review Consolidated Billing
After the accounts join, open the AWS Billing and Cost Management console.
Review the consolidated billing configuration and verify that the member accounts appear correctly. The management account is responsible for paying the organization’s charges.
Remember that consolidated billing does not automatically mean every promotional credit is available to every account. Check the eligibility and sharing settings of each credit grant.
Step 6: Configure Budgets and Cost Alerts
Connecting accounts can make billing easier, but it also creates a need for careful cost monitoring.
Set up AWS Budgets, billing alerts, and appropriate access controls. Monitor individual account usage so unexpected expenses do not affect your overall cloud budget.
For official guidance, refer to the AWS Organizations documentation.
Can You Combine AWS Credits From Multiple Accounts?
Many startups and developers have questions about combining AWS credits when multiple accounts have promotional balances.
AWS credits generally remain associated with the account to which they were granted. However, eligible credits may be applied across accounts within an AWS Organization when the applicable credit-sharing settings and grant terms permit it.
For example, if multiple accounts have eligible promotional credits, AWS Organizations may allow those credits to cover eligible usage across the organization. This does not create new credits or guarantee that every credit can be shared.
Before connecting accounts, check:
- Whether each credit grant permits sharing.
- Which AWS services are eligible for the credits.
- The expiration date of each credit balance.
- Whether the accounts meet AWS organization and billing requirements.
- Whether the accounts have compatible seller-of-record arrangements.
Never assume that credits can be transferred directly between accounts. Review the applicable terms before making billing or account changes.
Important Things to Know Before Combining AWS Accounts
Before setting up AWS Organizations, keep the following points in mind.
- Accounts are not merged: Each AWS account remains a separate account with its own resources and identity.
- Billing responsibility changes: The management account becomes responsible for paying charges incurred by member accounts under consolidated billing.
- Credits have restrictions: Promotional credits may have service limitations, sharing restrictions, and expiration dates.
- Security is important: Use MFA, appropriate IAM permissions, and least-privilege access policies.
- Check eligibility requirements: Account invitations and organization changes must comply with AWS requirements, including applicable seller-of-record restrictions.
- Monitor expenses regularly: Set budgets and alerts before running workloads across multiple accounts.
Conclusion
Combining multiple AWS accounts through AWS Organizations is a practical way to simplify cloud billing and manage business infrastructure. Although the accounts remain separate, consolidated billing and centralized management can help businesses improve cost visibility and organize their AWS environments.
Before connecting accounts, review billing responsibility, account eligibility, security settings, and AWS credit-sharing terms.
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