According to the law, employees must buy social security in the current month or the next month, and you can reserve the right to pay it back. It is the right of the employee and the obligation of the employer to establish a labor relationship, conclude a labor contract and pay social security within one month from the date of employment.

If the contract term is more than three months but less than one year, the probation period shall not exceed one month. If the term of the labor contract is more than one year but less than three years, the probation period shall not exceed two months. The probation period of a labor contract with a fixed term of more than three years or without a fixed term shall not exceed six months.