Statement: Non-domestic rates and the price for regulated Dark Fibre

This document sets out amendments to the calculation of the price that BT charges for access to its dark fibre products. The need for the amendments arises from an appeal against the April 2016 Business Connectivity Market Review by TalkTalk. The Competition and Markets Authority found that Ofcom was wrong to use a measure of BT’s non-domestic rates costs as part of the calculation for the price of dark fibre products. We consulted on our proposals to amend the calculation on 11 April 2017, and this document sets out our decisions.