Should my rent which is paid by my boss, reflect on my payslip?

I am renting a house in town. My boss pay the whole amount of R 3500. 00. Should this reflect on my payslip and how?

Yes, this would be fully taxable at the same rate as your salary.
It can reflect as 'other allowances - taxable" and can reflect under source code 3713 on your IRP5.