The commission rates vary widely based on local tradition. For example in leases: In PA I have seen the broker get paid 6% in year 1, 5% in year 2 ... so the commission becomes more of an annuity. If you travel a few miles east into NJ the commission rate may be 5% of the lease payable to the office leasing broker upon occupancy while industrial is 5% to be split between the listing agent and the procuring broker. There is no "standard" number that anyone can point to.