Hi Kazim116
While you would now not usually need to do anything to inform us of changes to your employment benefits, as your employer will declare these via P11Ds and you no longer file a Self Assessment return, you do still have a responsibility to check your tax code to ensure any changes made by your employer are ultimately present in your tax code.
If you would like us to check your code, contact us by webchat or phone via
Income Tax: general enquiries
Thank you