Within the TaxBit ecosystem. User represents an Account owned by an end user, which includes Personal Identifiable Information (PII) data and relates to transaction records associated with that Account.
While only a unique external_id is required to establish a User in our system, certain fields like tax_id are necessary for features like Information Reporting and Withholding (IRW) Form Generation and Automatic TIN Validation. The fields you incorporate will depend significantly on your specific use case. Nonetheless, it is advised to provide as much data as feasible regarding a User as a best practice to ensure that TaxBit possesses the required information to satisfy your regulatory requirements.