Each user on your GitHub Enterprise Server instance consumes a seat on your license. GitHub bills monthly for the total number of seats consumed on your license.
For invoiced GitHub Enterprise customers, GitHub bills through an enterprise account on GitHub.com. Each invoice includes a single bill charge for all of your paid GitHub.com services and any GitHub Enterprise Server instances. For more information about usage and invoices, see "Viewing the subscription and usage for your enterprise account" and "Managing invoices for your enterprise" in the GitHub.com documentation.
Administrators for your enterprise account on GitHub.com can access and manage billing for the enterprise.
GitHub Enterprise customers with no enterprise account on GitHub.com can view invoices and payment history on the GitHub Enterprise website. To upgrade to GitHub Enterprise or to get started with an enterprise account, contact GitHub's Sales team.
GitHub Enterprise offers two deployment options. In addition to GitHub Enterprise Server, you can use GitHub Enterprise Cloud to host development work for your enterprise on GitHub.com. For more information, see "GitHub's products."
You can allocate the user count for your GitHub Enterprise license to members of both your GitHub Enterprise Server instance and an enterprise account on GitHub Enterprise Cloud. When you add a user to either environment, the user will consume one license. If a user has accounts in both environments, to consume only one license, the user's primary email address on your GitHub Enterprise Server instance must be the same as the user's verified email address on GitHub.com. You can sync license count and usage between the environments. For more information, see "Syncing license usage between GitHub Enterprise Server and GitHub Enterprise Cloud."