Yes, road fund licence (road tax) is included for either 12 months or for the duration of the contract depending upon the type of lease agreement taken out.
If you have taken out a personal or business contract hire agreement, your road fund licence will be provided to you for the duration of the contract by the funder. This is because the funder is the registered keeper of the vehicle.
If you have taken out a contract purchase, personal contract purchase, finance lease, lease purchase, business or personal operating lease, the funder will only provide you with road fund licence for the first 12 months as you are the registered owner of the vehicle.