BT faces regulation over its pricing of fibre broadband despite Ofcom ruling that its wholesale charges to rival TalkTalk are not anti-competitive.

The regulator has proposed new requirements on BT to promote competition in the growing market for superfast broadband customers. The rules would mean that BT would have to maintain a sufficient margin between its wholesale and retail superfast broadband charges to allow other operators to profitably match its prices. However, Ofcom rejected a complaint from TalkTalk that BT had failed to maintain the margin.