PIB TIP: ASSESS LEASE-PURCHASE PLANS. Calculating the total cost of a truck under a carrier’s lease-purchase plan can be difficult. Beyond knowing the monthly lease payment, make sure you know the total purchase price. The interest cost is only one of the factors. Given the price and truck’s condition at the lease’s start, you should make an estimate of what it would be worth by the time you take ownership. Otherwise, you run the risk of having little equity to put toward your first trade. The Partners in Business program is produced by Overdrive and the consultants at ATBS, the nation’s largest owner-operator business services firm, and is sponsored by Freightliner Trucks.