What It Is

• The UID replaces the commercial register number, VAT number, freight forwarder number, TIN, and various other Swiss identifiers

• It's used as an identification number for administrative contacts and bodies

• Format: prefix "CHE" followed by a 9-digit number and a control digit (e.g., "CHE987654321")

• A UID can usually be looked up in the public register — though some entries are exceptions and not public