The document type of the collected tax documentation data

The legal name of the beneficial owner of the account

The "doing business as" (DBA) or "disregarded entity" (DRE) name

The federal tax classification of name; if tax_classification != OTHER, other_tax_classification must be empty

The tax classification not listed; if tax_classification = OTHER, this field is required

The code used to identify payees who are exempt from backup withholding

The code used to identify payees who are exempt from FATCA reporting

The U.S. tax identification number (TIN) associated with the name; the TIN must consist of 9 numerical digits, must not be sequential or repeating, must not begin with five zeros, and must not contain any alphabetic characters

The type of US tax identification number; if tax_classification = INDIVIDUAL, tin_type must be SSN, ITIN, or ATIN - else, tin_type must be EIN

The signed name of signor (i.e., individual authorized to sign for name); if tax_classification = INDIVIDUAL, signature must equal name

The date and time when the form was signed; the timestamp must be within 24 hours of the current UTC time