Is payment for leasing a building for the firm an implicit cost for a firm?

Payment for leasing a building is generally considered an explicit cost, as it involves a direct monetary transaction that is clearly accounted for in the firm's financial statements. However, if the firm owns the building and could have earned rental income by leasing it out to another party, the opportunity cost of not renting it is an implicit cost. Thus, while leasing payments are explicit costs, the potential income from alternative uses of owned property represents an implicit cost.