No! IIC charges brokers a rational referral fee that is based on market conditions, the type, and the size of the transaction (which also means the size of the commission). We’ve found that 25% is the most common referral fee that residential brokers offer to pay to any broker for a referral. And, in general, if the referral is for an inexpensive home, the referral fee percentage will probably be lower than for an expensive home. But, in the commercial sector of the industry, the norms for referral fees seem to be much more variable. That’s in part because leases for commercial space in length. For example 1, 3, 5, 10, 15, and even 20 years are common, and the commission varies with length of lease.