Look up client account by EIN
Client Accounts
Look up client account by EIN
Looks up the client account containing a business with the given EIN and returns a client-account-wide compliance summary, including every taxpayer on the account plus any not-yet-onboarded pending taxpayers. Returns 200 for any well-formed EIN; result is null and currentStatus.status is NotMonitored when no accessible business has that EIN.
POST
Look up client account by EIN
Authorizations
The access token obtained from the OAuth flow (see Guides → Quickstart). Paste it here to run the endpoint.
Body
application/json
Business EIN: nine digits, with dashes and spaces ignored.
Example:
"11-1111111"

