Is it reasonable for the company to deduct next month's social security in advance

Legal analysis: unreasonable. Whether it is a trial period or probationary period, how many days you have done is how many days of wages, and social security is also to be paid together with the wages, the employer can not be owed. If the company does not cooperate, you can file a labor arbitration or labor lawsuit. Social security costs are at the beginning of each month, the local tax bureau to collect the unit, then as long as the employee has to work in the half-month, then the unit will need to pay social security costs for the employee in this month, while the employee needs to bear the part of this month's personal payment of social security.

Legal basis: "Chinese people*** and the State Social Insurance Law" Article 10 employees should participate in the basic pension insurance, by the employer and the employee*** with the payment of basic pension insurance premiums. Individual industrial and commercial households without employees, part-time workers who have not participated in basic old-age insurance with their employing organizations, and other flexibly employed persons may participate in basic old-age insurance and pay basic old-age insurance premiums on an individual basis. The methods of pension insurance for civil servants and staff members administered under the civil service law shall be prescribed by the State Council.