CoS Salary for tier 2 (G) extension

[aldude]

Hi,
I will be applying for a tier 2 extension later this year, I am currently on a tier 2 general visa. Can someone please tell me from what date does my employer has to start paying my salary at the experienced rate? Do I have to show salary slips with the higher experienced rates before I apply for my extension?

Thanks

[moonlight55]

Salary slips are not required for extension applications. The salary mentioned while generating the COS will be considered while granting the visa.