Every.org uses Stripe Connect Standard to connect to nonprofits, which requires that nonprofits create a Stripe account.
If your organization already has a Stripe account, you can log in using the existing email address on the first screen and Stripe will pre-fill as much of the information as possible. This creates a new sub-account within your existing account that you can access under a dropdown on the top-left of your Stripe dashboard's navigation bar. Stripe may still ask you questions for their KYC process, but using an existing Stripe login, they should pre-fill as much of the information as possible. Please note that personal information such as SS#, date of birth, etc. is not shared with Every.org employees or servers, it is only sent to Stripe.
If you have any issues with connecting the account please contact Stripe customer support: support@stripe.com.