Ratable values of business properties are set by the Valuation Office Agency (part of HMRC) and used by local councils to calculate business rates bills. The Annual Ratable Value (ARV) of any land or building assessable to property tax is the annual rent at which the land or building might reasonably be expected to be let-out from year to year. Profit-based method, rental method and capital value method all are used for assessing the ratable value of a property. Amortization method is an accounting the chnique used to periodically lower the book value of a loan or intangible asset over a set period of time. By this method we can not find the ratable value of a property. The term "amortization" can refer to two situations. First, amortization is used in the process of paying off debt through regular principal and interest payments over time. An amortization schedule is used to reduce the current balance on a loan. This property value is not a ratable value.