Documents you need to show：

1. The taxpayer’s Identity Card (ID card).
2. Inquiring about data for children under 20-year- old, Identity card (ID card) of legal representative and Household Registration Certification of children under 20-year- old shall be provided.
3. Passport shall be verified for applicant who is a foreigner;
4. In the case that the applicant is the people of Mainland China area, document required should be the Travel Pass or Resident Certificate for the Taiwan area issued by National Immigration Agency, ROC.
5. If taxpayer authorizes agent to apply for enquiries about various income data, documents required shall be the Letter of Mandate/Delegation (in case agent is appointed outside the ROC, Letter of Mandate/Delegation shall be issued and certified by overseas embassies or consulates) and agent’s Identity Card (ID card). If the applicant’s ID provided by agent is a copy, applicant or agent shall guarantee that the copy is consistent with the original and retain the copy for future reference.