The relevant laws on certified tax agents have not yet been formulated, so there is no statutory business.

There is only State Taxation Administration of The People's Republic of China's document, which is only a business guide for lower-level organs, and there is no compulsory execution in terms of legal effect.

At present, the main businesses of tax agency are:

1, tax declaration agent;

2. Acting as an agent to issue special VAT invoices and input VAT invoices for online certification;

3. Review the pre-tax deductions of enterprise income tax and issue an audit report;

4, tax review and issue a review report or proposal;

5, tax reduction or refund agent and issue an audit report;

6. Employed to help enterprises establish account system and act as bookkeeping agents;

7. Tax consultants and tax consultation and planning;

8. Making tax-related documents;

9, all kinds of finance and tax training;