Now a days every business have GST Registration . As per Govt guidelines we have to file GST return every month. For this work every GST expert charging Rs 500 to 50000 every month . You can earn like this after this courses - If you create 1000 clients Your Minimum income will be ( 1000 x 500 = ₹ 500000 ) 5 Lakh and Maximum you can calculate . So Start your Career Now ( Part Time & Full time ).