A lease is a contractual agreement between a lessor, who owns an asset, and a lessee, who uses the asset. There are two main types of leases from an accounting perspective: operating leases and capital leases. For operating leases, the asset is not recorded on the lessee's balance sheet, while lease payments are expensed over time. For capital leases, the asset and liability are recorded on the lessee's balance sheet similar to a purchased asset. Leases allow companies to acquire assets without large upfront cash outlays and provide off-balance sheet financing advantages.