Mid-contract broadband price rises: Ofcom's 2025 rules explained

Before January 2025, most UK broadband providers raised mid-contract prices using a CPI-linked formula (e.g. CPI + 3.9%). Customers signed up not knowing what their bill would actually be 12 months in. Ofcom found this opaque and changed General Condition C1: any rise during a fixed-term contract must now be a specific pence amount, disclosed before sign-up.

The practical effects:

• You see the rise as a number (e.g. "+£3.00 from April 2027") before you commit.
• If the provider raises prices by more than the disclosed figure, you have the right to leave penalty-free within 30 days.
• CPI-linked rises remain valid for contracts taken out before 17 January 2025 (legacy contracts).

Live snapshot of every UK broadband deal we currently track, broken down by provider. Updated daily.

Every deal we list shows three pricing facts where the provider has them: a headline price (what you pay this month), a post-intro price (what you pay after any introductory discount ends), and the disclosed rise (the £/p change Ofcom now requires the provider to publish, plus the date it kicks in). Fully fixed deals (no intro discount, no rises) are flagged with a lock chip on the card.

If your provider raises your price by more than the disclosed amount, you can leave without an early-termination fee within 30 days of being notified. Pricing changes in line with the disclosed forecast are not exit-triggering — that''s the trade-off Ofcom designed.

Pre-2025 contracts: you can usually leave when your provider increases the price under a CPI-linked clause IF the increase is materially detrimental. Worth a call to the provider; they often waive the fee on request.

UK broadband mid-contract price rise tracker — the full sortable tracker of every disclosed rise, deal by deal.

Fixed Price Broadband Deals — UK providers whose tracked deals are fully fixed-price for the contract length.