A list of additional parameters that can or need to be provided in particular countries.
Each item is an object consisting of two properties: name - which is the name of the parameters, and value - which holds a value of additional parameters.
Current supported usage per country:
Canada (CA): taxpayer_name optional,
date optional,
canada_bc_pst optional - In case you are validating PST numbers in CA-British Columbia, you need to provide both the taxpayer's Business Number as tin (9 digits), and PST number (8 digits);
China (CN): taxpayer_name required to check an individual tin_type - full personal name in Chinese is required for national ID validation
Croatia (HR): date optional;
Egypt (EG): egypt_uin optional - The UIN is a 39-character mixed format identifier which is required for Egyptian tax ID validation;
India (IN): india_state_name optional - Used for validating whether the GSTIN corresponds to the relevant state where the taxpayer is based. Allowed values: "Jammu & Kashmir", "Himachal Pradesh", "Punjab", "Chandigarh", "Uttarakhand", "Haryana", "Delhi", "Rajasthan", "Uttar Pradesh", "Bihar", "Sikkim", "Arunachal Pradesh", "Nagaland", "Manipur", "Mizoram", "Tripura", "Meghalaya", "Assam", "West Bengal", "Jharkhand", "Odisha", "Chhattisgarh", "Madhya Pradesh", "Gujarat", "Dadra and Nagar Haveli and Daman and Diu", "Maharashtra", "Karnataka", "Goa", "Lakshadweep", "Kerala", "Tamil Nadu", "Puducherry", "Andaman and Nicobar", "Telangana", "Andhra Pradesh", "Ladakh",
name optional - Taxpayer's name can be provided in PAN validations to check 100% matching of the name with official database. The result will contain india_pan_name_match field in extra_fields,
date optional - Date of birth can be provided in PAN validations to check matching with official database. The result will contain india_pan_date_match field in extra_fields;
Lithuania (LT): taxpayer_name optional;
Mexico (MX); taxpayer_name optional, zip_code optional;
Poland (PL): date optional;
Spain (ES): taxpayer_name optional;
Turkey (TR): tax_office optional, province optional for validation in government database with the full list, these fields are required, however, the request will proceed and be tried without them to see if tax id can be found in alternative government databases without the full list..
United States of America (US): taxpayer_name required to check Employer Identification Number (EIN) or first_name, last_name required to check an individual tin_type (Social Security Number)
