Business income fits a business that can simply close until repairs are done and then reopen. Its main exposure is the income lost while it is shut, plus the expenses that keep running.

Extra expense fits a business whose customers would leave if it stopped, so it pays more to keep running. A community bank that must serve depositors from a temporary branch is the classic example. A seasonal stand that can just close has a lost-income exposure, not an extra expense need.

A landlord has a different exposure: lost rent. The business income form can be written for rental value, which is the income from tenant occupancy of the described premises plus continuing expenses for those premises. Extra expense would not replace the rent, and dependent properties coverage concerns damage at someone else's location.

Which perils apply? The business income form does not list its own perils. It points to the causes of loss form shown in the declarations, so the business income declarations tell the insured whether basic, broad or special applies.