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AWS Savings Plans consolidated billing sharing: how discounts work across accounts

Understand how AWS Savings Plans share across accounts, control discount allocation, and balance utilization with cost ownership.
Updated September 2, 2026
16 min read
In this article
Key takeaways
1
Savings Plans can share across accounts in one AWS Organization.
2
The owner account receives benefits first.
3
AWS now supports group-based sharing controls.
4
Restricted sharing can improve cost ownership but increase unused commitment risk.
5
Per-account visibility requires the right Cost Explorer or CUR analysis.
If your AWS accounts use consolidated billing, Savings Plans can share across eligible accounts in the same organization. The purchasing account gets the benefit first, and when sharing is enabled, unused commitment can be applied to other accounts based on AWS’s calculated savings priority.

The key questions are how sharing is controlled, how benefits are attributed, and what happens when account structures change.

What consolidated billing changes

AWS Organizations consolidated billing combines usage and payment into a single bill for the management account. Savings Plans can therefore benefit eligible usage across accounts in the consolidated billing family, subject to sharing settings.

For a broader overview of Savings Plans and commitment sizing, see our AWS Savings Plan buying strategy.

The important distinction is between the commitment owner and the account receiving the discount. A Savings Plan purchased in one account can benefit eligible usage in another account, but that does not mean the commitment charge moves with the benefit.

How Savings Plans apply

AWS applies Savings Plans in a defined sequence:
  1. Owner account first. The Savings Plan first applies to eligible usage in the account that owns the plan.
  2. Cross-account sharing. When sharing is enabled, any remaining benefit can apply to eligible usage in other accounts.
  3. Savings optimization. AWS prioritizes accounts based on the calculated savings from applying the remaining Savings Plan benefit.
This means the account that purchased the plan does not necessarily consume the entire commitment. A lower-usage owner account can leave capacity that benefits a higher-usage account in the same organization.

AWS also applies Savings Plans within a broader commitment order. Reserved Instances apply before Savings Plans. When multiple Savings Plans apply, EC2 Instance Savings Plans are applied before Compute Savings Plans because Compute Savings Plans have broader applicability.

Why this matters:
Purchase location and sharing settings affect how efficiently a commitment is used, especially when workloads are distributed across business units.

Worked example: $10/hour commitment

The following is illustrative, not an AWS billing quote.

Assume a $10/hour Compute Savings Plan in Account A. During one billing hour, Account A has $4 of eligible usage, Account B has $3.50, and Account C has $2. The organization has sharing enabled.

Account Eligible usage Commitment amount
Account A $6.00 $6.00
Account B $3.50 $3.50
Account C $0.50 $0.50
Unused $0.50
The unused $0.50 is not carried forward to another hour. The example shows why sizing should consider the organization’s stable eligible usage rather than only the owner’s workload.

Four sharing configurations

AWS now provides organization-wide sharing plus RISP Group Sharing controls and per-account deactivation.
Configuration Best fit Benefit flow
Organization-wide sharing Maximum organization-wide utilization Owner first, then eligible accounts
Prioritized Group Business-unit showback or soft isolation Owner, defined group, then organization
Restricted Group Hard cost boundaries Owner and defined group only
Deactivated account Full account isolation No sharing in or out

RISP Group Sharing

AWS made Reserved Instances and Savings Plans Group Sharing generally available on November 19, 2025. It lets the management account define account groups with AWS Cost Categories and control whether commitment benefits stay within those groups or spill over to the organization.

Prioritized Group Sharing gives the defined group priority after the purchasing account, then allows unused capacity to benefit the rest of the organization. Restricted Group Sharing keeps the benefit within the defined group and does not allow unused capacity to spill outside it.

Before you configure group sharing, check these requirements:
  • Configuration is performed from the management account.
  • Sharing groups use the Accounts dimension in AWS Cost Categories.
  • An account can belong to only one sharing group, and the payer account cannot be part of a group.
  • The Cost Category’s Uncategorized costs default value cannot use the same name as a sharing group.
AWS says RISP Group Sharing is available in all AWS Regions except AWS GovCloud (US) and China Regions.

AWS Billing and Cost Management Billing preferences showing Savings Plans discount-sharing controls and group-sharing configuration options

When to deactivate sharing

The management account can deactivate Reserved Instances and Savings Plans discount sharing for individual member accounts from Billing preferences.

When sharing is deactivated for an account:
  • Savings Plans owned by that account no longer share their benefit with other accounts.
  • The account cannot receive shared Savings Plans benefits from other accounts.
  • A commitment that exceeds the account’s own eligible usage can therefore become underutilized.
Deactivation can make sense for tenant isolation, strict business-unit boundaries, or chargeback models where discount benefits must remain within an account. Otherwise, restricting sharing can reduce the organization’s ability to use surplus commitment.

AWS’s current Billing documentation explains the activation and deactivation controls.

How to choose a sharing mode

Use the simplest model that matches your financial control requirements.

Situation Recommended approach Reason
One organization, shared financial ownership Organization-wide Maximizes the pool available for eligible usage
Business units need showback Organization-wide + CUR attribution Keeps sharing broad while reporting benefit by account
Business units need priority Prioritized Group Gives a defined group first access, then allows spillover
Business units need strict isolation Restricted Group Prevents benefit spillover outside the group
Tenant-level isolation Deactivated sharing Prevents inbound and outbound sharing
Do not use Restricted Group simply because separate teams have separate budgets. First determine whether the utilization benefit of organization-wide sharing is more valuable than strict discount isolation.

How to track usage by account

Organization-wide utilization can hide which linked accounts are consuming a commitment. For account-level attribution, use AWS Cost and Usage Reports and Cost Explorer.

In CUR, use lineItem/UsageAccountId to identify the account associated with a usage or fee line. Filter lineItem/LineItemType for SavingsPlanCoveredUsage to identify covered usage, then use savingsPlan/SavingsPlanEffectiveCost on those rows to allocate the effective cost of the benefit.

For commitment charges, filter lineItem/LineItemType for SavingsPlanRecurringFee and SavingsPlanUpfrontFee. AWS documents SavingsPlanUpfrontFee for All Upfront and Partial Upfront purchases and SavingsPlanRecurringFee for recurring charges.

For a broader explanation of Cost Explorer, see our AWS Cost Explorer guide.

How to reconcile Savings Plans for chargeback

Sharing controls determine where a discount can be used. They do not create your internal chargeback policy.

A practical model separates three things:
  • Showback: Report SavingsPlanCoveredUsage by lineItem/UsageAccountId so teams can see the usage that received the benefit.
  • Benefit-based chargeback: Allocate savingsPlan/SavingsPlanEffectiveCost to the accounts associated with covered usage.
  • Commitment-cost chargeback: Separately allocate SavingsPlanRecurringFee and SavingsPlanUpfrontFee according to your organization’s ownership policy.
This distinction matters because the purchasing account remains the commitment owner even when other accounts receive shared benefits. AWS also states that the account purchasing the commitment remains responsible for the purchase.

For a deeper treatment of amortized commitment cost, see our AWS Savings Plan amortized cost guide.

What happens when accounts move

Moving an account between organizations or billing structures can change Savings Plans coverage. Shared benefits depend on the accounts remaining within the applicable consolidated billing family and on sharing being enabled. If a Savings Plan owner account leaves the organization, AWS states that the Savings Plan no longer applies to the consolidated bill.

Before moving an account:
  1. Identify Savings Plans owned by the account.
  2. Document which accounts currently receive shared benefits.
  3. Review the account’s sharing preference.
  4. Model the post-move coverage and any On-Demand exposure.
  5. Recheck commitments after the organization change.
Do not assume that an account move is only a billing-administration event. It can change which workloads receive commitment benefits.

AWS recommendation refresh

AWS lets you manually refresh Savings Plans purchase recommendations up to three times per day for a consolidated billing family. Recommendations are based on historical usage and the selected lookback period, so the result should be reviewed against known workload changes before committing.

For broader cost optimization practices, see our guide to cloud cost optimization challenges.

Common sharing mistakes

  1. Buying without considering future isolation.
A member account may later need separate billing or tenant boundaries. A commitment purchased there can become less flexible if sharing is later restricted.
  1. Treating aggregate utilization as account-level performance.
A high organization-wide utilization rate can hide a sharp drop in one consuming account.
  1. Using Restricted Group without modeling utilization.
If the defined group consumes less than its commitment, unused capacity cannot help accounts outside the group.
  1. Ignoring organizational changes.
Mergers, account transfers, and billing changes can alter the pool of eligible usage.

How Usage.ai Solves Multi-Account Savings Plans Management

Managing Savings Plans across consolidated billing accounts requires continuous visibility into usage, commitment coverage, and account-level allocation.

Faster commitment decisions: Usage.ai helps FinOps teams monitor commitment opportunities and make sizing decisions using current usage data.

Multi-account visibility: See commitment coverage and usage across linked AWS accounts, making it easier to understand where Savings Plans benefits are being used and support showback.

Reduced commitment risk: With cashback protection for eligible commitments, Usage.ai helps reduce the risk of paying for commitments that become underutilized, subject to applicable terms.

Proven AWS savings: Customers such as EVgo and Motive have reported significant annual savings in AWS-heavy environments, demonstrating the potential impact of structured commitment management.

we focus on the commitment layer. We identify eligible AWS commitment opportunities and, once you approve a recommendation, automatically initiate the commitment purchase. The commitment is then managed through our Flex Commitment Program. Learn more about Flex Commitment eligibility

With Flex Commitments, teams can access up to 57% savings associated with a 3-year AWS commitment without taking on the long-term commitment risk. If a commitment becomes more expensive than the equivalent On-Demand usage, Usage.ai provides cashback protection to help cover the difference.

AWS commitment optimization
AWS Savings Without the Risk

Access up to 57% savings with a three-year AWS commitment, while reducing long-term exposure. Eligible commitments include cashback protection, subject to applicable terms.

Frequently asked questions

Can a member account's Savings Plan benefit other accounts?

Yes. The Savings Plan first applies to eligible usage in the owner account. When sharing is enabled, remaining benefit can apply to eligible usage in other accounts in the consolidated billing family.

Can I restrict Savings Plans to specific account groups?

Yes. RISP Group Sharing provides Prioritized and Restricted Group Sharing. The groups are defined with AWS Cost Categories using the Accounts dimension.

What happens when Savings Plans sharing is deactivated?

The affected account cannot share its Savings Plans benefits outward and cannot receive shared benefits from other accounts. The account's own eligible usage can still use its owned commitment, subject to the applicable sharing preference.

How should Savings Plans benefits be charged back?

Use CUR to separate covered usage from commitment fees. lineItem/UsageAccountId identifies the account, SavingsPlanCoveredUsage identifies covered usage, and savingsPlan/SavingsPlanEffectiveCost shows the effective cost allocated to that usage. Track upfront and recurring commitment fees separately.

Can Savings Plans share across separate AWS Organizations?

No. Savings Plans and Reserved Instances cannot be shared outside the purchasing AWS Organization. Each organization remains its own sharing boundary.

How we help with AWS commitments

At Usage.ai, we help FinOps teams access up to 57% savings with a three-year AWS commitment while reducing long-term commitment exposure. Eligible commitments receive cashback protection subject to applicable terms.

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