The present disclosure describes methods and systems that allocate costs of deploying and operating a virtual network to tenants that use the virtual network. In one implementation, costs are allocated to tenant virtual machines (“VMs”) by determining a network bandwidth of a virtual network, determining a common cost of operating the virtual network, determining a service capacity for each network service provided by the virtual network, and determining a service cost for each network service. A portion of the common cost is allocated to each VM based on the proportion of network bandwidth used by each VM, and a portion of the service cost is allocated to each VM based on the proportion of the service capacity used by each VM.