# Cancel or revoke billing assignment requests for shared EC2 Capacity Reservations
<a name="cancel-billing-transfer"></a>

Only the Capacity Reservation owner can cancel a `pending` billing assignment request. If a pending request is cancelled, it enters the `cancelled` state and billing of any available, or *unused*, capacity of the Capacity Reservation remains assigned to Capacity Reservation owner.

After a request is `accepted`, only the Capacity Reservation owner can revoke billing from the assigned account. If billing is revoked, the request enters the `revoked` state and billing of any available capacity of the Capacity Reservation is reassigned to Capacity Reservation owner.

When a request is cancelled or revoked, Amazon EventBridge events are sent to the Capacity Reservation owner and specified consumer account. For more information, see [Monitor billing assignment requests for shared Capacity Reservations](billing-ownership-events.md).

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#### [ Console ]

**To cancel or revoke a request**

1. Open the Amazon EC2 console at [https://console.aws.amazon.com/ec2/](https://console.aws.amazon.com/ec2/).

1. In the navigation panel, select **Capacity Reservations** and then choose the Capacity Reservation for which to cancel or revoke the request.

1. In the **Billing of available capacity** section, choose **Cancel transfer** or **Revoke transfer**, depending on the current state of the request.

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#### [ AWS CLI ]

**To cancel or revoke a request**  
Use the [disassociate-capacity-reservation-billing-owner](https://docs.aws.amazon.com/cli/latest/reference/ec2/disassociate-capacity-reservation-billing-owner.html) command. For `--unused-reservation-billing-owner-id`, specify the ID of the AWS account to which the request was sent.

```
aws ec2 disassociate-capacity-reservation-billing-owner \
    --capacity-reservation-id cr-01234567890abcdef \
    --unused-reservation-billing-owner-id 123456789012
```

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#### [ PowerShell ]

**To cancel or revoke a request**  
Use the [Unregister-EC2CapacityReservationBillingOwner](https://docs.aws.amazon.com/powershell/latest/reference/items/Unregister-EC2CapacityReservationBillingOwner.html) cmdlet. For `-UnusedReservationBillingOwnerId`, specify the ID of the AWS account to which the request was sent.

```
Unregister-EC2CapacityReservationBillingOwner `
    -CapacityReservationId cr-01234567890abcdef `
    -UnusedReservationBillingOwnerId 123456789012
```

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