A commission, generally paid by the landlord to a leasing broker, for procuring a tenant for a rentable piece of real estate. Leasing Commissions are typically paid at the start of the lease, and are commonly paid both when a new tenant occupies a space and when an existing tenant renews its lease. While Leasing Commission rates vary by market, they’re generally quoted as a percentage of the total rent over the term of the lease (e.g. 6%).