How to change gcp project billing to different billing organization?

Question

My company is willing to pay for my personal GCP projects and want me to change the billing id for my projects? How do I achieve this? Does my personal email have to be added to their billing org? OR can I just change billing id for my project?

Answer 1

You'll want to have them (probably;) assign your project to the organizational billing account. they own the billing account resource and only identities permitted to use it can apply it.

NOTE If your identity has the appropriate IAM role for your organization's billing account then, you could also make the change but I suspect (you asked this question that) it doesn't (and you probably shouldn't anyway) do this.

In order to do this, they will need (I think) roles/billing.projectManager on your (.) project.

https://cloud.google.com/billing/docs/how-to/billing-access

The change will only happen proactively (for charges incurred after the change of billing account is effective)