No, they are not the same. Under SAAS, we provide the software over the internet and you are responsible for managing your processes as per usual. With Payroll PBO, we provide you with a client portal where you provide the input for the Payroll processing which we do for you. We input the data, run the payroll, print reports, prepare pay slips, deposit money to the bank (if required), generate reports for you the customer and so on. At year end, we prepare the TDs and other documents for employees. Under SAAS you do all these things yourself.