Various qualification certificates can also participate in tax refund, such as teacher qualification certificate, legal professional qualification certificate, doctor qualification certificate, journalist professional qualification certificate, tour guide qualification certificate and so on.

A certificate is a document issued by an institution, school, organization, etc. Refers to a certificate that shows (or helps to judge) something. A certificate is a written document that records and proves legal facts. It does not represent rights in itself, but only proves the existence of facts. Graduation certificate, student ID card, birth certificate, marriage certificate, work permit, contract, etc. Housing ownership certificate and land use right certificate are facts that prove the ownership of rights.