Documents you need to show：

1. Inquiries about data on personal items, the Identity Card (ID card) is required.
2. Inquiries about data on profit-seeking enterprise, institutions or organizations items, and the establishment document approved by competent authority, which stamped by profit-seeking enterprise and person in charge of profit-seeking enterprise, institutions or organizations is required.
3. Inquiries about data on estate case, the applicant will be the deceased and the heir will be the agent.
4. If taxpayer authorizes agent to apply for enquiries about working progress of various application items, documents required shall be the Letter of Mandate/Delegation 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.