It can be seen that the employer is extremely irresponsible.

You don't have to worry, you can use the law to protect yourself. According to the relevant provisions of the Labor Law, employers must sign labor contracts with employees and buy insurance, so they need to buy social security, which is compulsory insurance. Therefore, you can negotiate with the employer to solve it. If there is no result, you can apply for labor arbitration or report a complaint to the local labor and social security department, and bring a lawsuit to the local court, which can be effectively solved.

The evidence is to prove the existence of labor relations with the unit, such as salary slips and work cards.

Generally, you have to pay back the month you owe.

Take the actual salary as the payment base.

Based on the company's purchase of full social insurance, the calculation is as follows:

Medical insurance: 2% for individuals and 8% for units;

Endowment insurance: 8% for individuals and 20% for units;

Unemployment insurance: individual 1%, unit 2%;

Industrial injury insurance: no individual, unit1%;

Maternity insurance: no individual, unit1%;

Provident fund: 3.5% for individuals and 3.5% for units.

Work injury and maternity insurance expenses shall be borne by the unit.

For example, the salary is 6000 yuan/month, so the premium to be paid is:

Medical insurance: 6000*2%= 120 yuan, unit 6000*8%=480 yuan;

Endowment insurance: 6000*8%=480 yuan, unit 6000*20%= 1200 yuan;

Unemployment insurance: 6000* 1%=60 yuan, unit 6000*2%= 120 yuan;

Work-related injury insurance: no individual, unit 6000* 1%=60 yuan.

Maternity insurance: no individual, unit 6000* 1%=60 yuan.

Provident fund: 6000*3.5%=2 10 yuan, 6000*3.5%=2 10 yuan.

So the total number of individuals is: 870 yuan, and the total number of units is: 2 130 yuan.

The calculated data may be different from the actual data, but the calculation method is like this.