Teaching privately in China is NOT legal or acceptable and the consequences could be fines and deportation.

A teacher in China named Mr. Barry, writes to us and says, "I have been teaching in China for 3 years. The Public Security Bureau comes to Guangxi University to lecture the new teachers and they make it perfectly clear, our "Z" Visa, nor a Resident permit, authorizes us only to teach at the school that applied for the Visa.

It is NOT a blanket work permit, it is strictly for the school that applied for the visa."