All businesses have a rateable value which broadly represents the annual rent the property could have been let for on the open market in 2015. This is assessed by the Valuation Office Agency - a part of the Inland Revenue. The rateable value for your premises is shown on your bill.
The Valuation Office Agency
Telephone: 0300 050 1501
Appeals will be backdated to no earlier than the start of the current financial year.
The Institute of Rating, Revenues and Valuation (IRRV) has published information about the likely timing of appeals.