Why are they important?
When determining the amount of rent to charge a tenant, it is important to consider carrying costs such as utilities, insurance, and management fees. These fees play a large role in determining your return on investment, cap rate, and cash flow.
Even more importantly, it is necessary to decide who is going to be paying these utilities. Because an owner can choose to offload the responsibility of paying for utilities to the tenant as specified in the lease, in doing so, he risks the tenant exceeding normal usage of the service, or worse, service interruption resulting in frozen pipes or a broken AC unit.
When an owner chooses to front the utilities, he can make sure the utilities always get paid and, therefore, the power always stays on and his property never runs the risk of damage.