Can a full-time employee agree with his/her employer to work part-time? Should a new employment contract be concluded if employee can work part-time? (In Turkey)

The employee working with one of our taxpayers with employment contract and in the system he/she has 30-day social security. The employer and the employee have agreed and after that employee will work part-time for 10 days each month. 1- Should the employer conclude a new contract for the employee, or should an addition be made to the old contract? 2- Employment transactions have been made in the system as full-time, so should any notice be submitted to Social Security Insurance?

A new employment contract should be concluded due to the fact that the working time and wage have changed.

Change of working type is approved with petition of the worker and part-time working notification should be made in monthly premium and service certificate.

Source: İSMMMO
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