Quotas for AWS Organizations - AWS Organizations

Quotas for AWS Organizations

This section specifies quotas that affect AWS Organizations.

Naming guidelines

The following are guidelines for names that you create in AWS Organizations, including names of accounts, organizational units (OUs), roots, and policies:

  • They must be composed of Unicode characters

  • Maximum string length for names vary by the object. To see actual limit for each, see the AWS Organizations API Reference and find the API operation that creates the object. Look at the details for that operation's Name parameter. For example: Account name, or OU name.

Maximum and minimum values

The following are the default maximums for entities in AWS Organizations.


You can request increases for some of these values by using the Service Quotas console.

Organizations is a global service that is physically hosted in the US East (N. Virginia) Region (us-east-1). Therefore, you must use us-east-1 to access Organizations quotas when using the Service Quotas console, the AWS CLI, or an AWS SDK.

Number of AWS accounts in an organization


This is the default maximum number of accounts allowed in an organization.

An invitation sent to an account counts against this quota. The count is returned if the invited account declines, the management account (formerly known as the "master account") cancels the invitation, or the invitation expires.

Number of roots in an organization


Number of OUs in an organization


Number of policies of each type in an organization

1000 per policy type

Maximum size of a policy document

Service control policies: 5120 bytes (not characters)

AI services opt-out policies: 2500 characters

Backup policies: 10,000 characters

Tag policies: 2500 characters

Note: If you save the policy by using the AWS Management Console, extra white space (such as spaces and line breaks) between JSON elements and outside of quotation marks, is removed and not counted. If you save the policy using an SDK operation or the AWS CLI, then the policy is saved exactly as you provided and no automatic removal of characters occurs.

OU maximum nesting in a root

Five levels of OUs deep under a root.

Number of open invitations you can add in a 24-hour period

20 — Accepted invitations don't count against this quota. As soon as one invitation is accepted, you can send another invitation that same day.

Number of member accounts you can create concurrently

5 — As soon as one finishes, you can start another, but only five can be in progress at a time.

Number of entities that you can attach a policy to


Number of tags that you can attach to an account


Expiration times for handshakes

The following are the timeouts for handshakes in AWS Organizations.

Invitation to join an organization

15 days

Request to enable all features in an organization

90 days

Handshake is deleted and no longer appears in lists

30 days after the handshake is completed

Number of policies that you can attach to an entity

The minimum and maximum depend on the policy type and the entity that you're attaching the policy to. The following table shows each policy type and the number of entities that you can attach each type to.

Policy type Minimum attached to an entity Maximum attached to root Maximum attached per OU Maximum attached per account
Service control policy 1 — Every entity must have at least one SCP attached at all times. You can't remove the last SCP from an entity. 5 5 5
AI services opt-out policy 0 5 5 5
Backup policy 0 10 10 10
Tag policy 0 5 5 5

Currently, you can have only one root in an organization.