The labor contract could not be found, and the original company did not put it on record. How can I prove my seniority?

There is no direct relationship between length of service and labor contract. ?

If the labor contract is lost, the length of service is still calculated from the date of employment.

First, you can go to the Social Security Bureau to print the social insurance list. If the company normally buys social insurance for employees, the social insurance list is stamped with the seal of the Social Security Bureau, which can prove the working years of employees.

Second, you can try to apply for labor arbitration to prove labor relations and employment date.

The determination of length of service mainly refers to the working hours of employees whose main or all sources of livelihood are wage income since the establishment of labor relations with the unit.

The length of service marks the length of employees' working hours, and also reflects employees' contribution to society and enterprises and their level of knowledge, experience and technical proficiency.

For example:

When an employee is transferred from unit A to unit B, his working time in both units shall be continuously calculated as continuous length of service. If an employee is reviewed and rehabilitated after being wrongly handled, the time of being wrongly handled can be added to the time of continuously calculating the length of service before the error handling and the working time after the rectification, and the continuous length of service can be calculated.

Extended data:

In the following cases, the length of service of employees before and after is calculated continuously:

1. The enterprise management organ and the enterprise administrative organ continuously calculate the length of service before and after job transfer and laid-off (maintaining labor relations with the enterprise).

2, enterprise management agencies, enterprise administration deployment of domestic and foreign learners, their learning period and the length of service before and after deployment should be calculated continuously.

3, due to the closure or bankruptcy of the enterprise, the staff and workers are handed over to other employees by the enterprise management authority, and the length of service before and after the transfer should be calculated continuously.

4 enterprises after the transfer, reorganization or merger, the original employees still stay in the enterprise, the length of service before and after the transfer, reorganization or merger should be calculated continuously.

5. If the employee stops working for medical treatment due to illness or non-work-related injury for 6 months, it will be continuously calculated as the length of service of the enterprise; Workers who have returned to the original enterprise after more than 6 months of recovery, except for the period of more than 6 months, do not calculate the length of service, and their length of service before and after should be combined and calculated as continuous length of service.

6, inductrial injury or occupational disease to stop working during medical treatment, shall be calculated as continuous length of service.

7. length of military service, who participated in the revolutionary work and was a revolutionary soldier before changing jobs, shall be continuously calculated for the length of service.

8. Apprentices should calculate the length of time in this enterprise during their study in this enterprise. When temporary workers and probationers become regular employees, their length of service in this enterprise shall be calculated from the date of entering the enterprise for the last time.

9. The educated youth who were originally assigned to work in state farms and farms, and the urban educated youth who jumped the queue in rural areas by state organizations during the Cultural Revolution, after leaving rural areas, farms or rural areas to work in cities and towns according to policies, the time they took part in labor on farms, farms or rural areas can be combined with the time they took part in work to calculate the continuous length of service.

10, the continuous length of service is calculated from the date of entering the enterprise. Returned overseas Chinese workers engaged in revolutionary work abroad, who really need to be transferred back to China or persecuted to return home because of their work, can be counted as continuous service if there is reliable proof and verified by the Overseas Chinese Affairs Commission.

References:

Baidu encyclopedia-continuous length of service

References:

Baidu encyclopedia-length of service