CPI Plus 3.9% Guide
Find out about CPI plus 3.9% price increases for customers who took out a contract before 11th July 2024.
CPI plus 3.9% price increases to broadband, line rental, call plans and call charges
Our guide will take you through the what, when and how of CPI plus 3.9% increases and how they’ll apply to your services.
Will these price increases apply to me?
If you took out a contract before 11th July 2024, these price increases will apply to you unless you are currently in a fixed price contract minimum term.
For customers who are in a fixed price contract minimum term, these price increases will only apply to you once your minimum term ends.
For customers who took out a contract from 11th July 2024, you can find out about your price increases here.
What's CPI?
The Consumer Price Index (CPI) rate is a figure released by the Office for National Statistics. The CPI is used for purposes such as uprating pensions, wages and benefits and can help in the understanding of inflation on family budgets. CPI measures the average price change as a percentage for a basket of 700 different goods and services which households buy.
How will the CPI plus 3.9% price increases work?
On or after 1st March every year, we'll take the CPI percentage rate published by the Office for National Statistics in January of that year and add an extra 3.9% to the rate. We'll increase the monthly price of broadband, line rental, call plans and call charges by the total percentage figure.
If the published CPI percentage rate is negative, we'll only increase your prices by 3.9% in the relevant year.
The calculated increase will be rounded up to the nearest whole pence.
Where you buy more than one service from us and each is subject to the price increase, the amount of the increase is calculated on each service separately. If you receive a discount on your price, the increase will be applied to this amount.
Here's an example to show how the price rise works.
Let's say:
You have Unlimited Fibre Broadband and line rental and an Evening and Weekend UK & Mobile call plan. The price of your package is made up of:
- Unlimited Fibre Broadband - £21.23 per month
- Line rental - £26.53 per month
- Evening and Weekend UK & Mobile Call plan - £6.53 per month
- Your total monthly price = £54.29
- The CPI rate published in January 2024 is 4%
- The CPI rate published in January 2025 is 2.1%
| Date | Monthly Price |
|---|---|
| Monthly price up to March 2024 | £54.29 |
| Monthly price from March 2024 to Feb 2025 | £58.59 Worked out as follows: Unlimited Fibre Broadband £21.23 per month plus 7.9% (the 4% CPI rate published in January 2024 plus 3.9%) = £21.23 x 7.9% = £1.68 £21.23 + £1.68 = £22.91 per month Line rental £26.53 per month plus 7.9% (the 4% CPI rate published in January 2024 plus 3.9%) = £26.53 x 7.9% = £2.10 £26.53 + £2.10 = £28.63 per month Evening and Weekend UK & Mobile Call plan £6.53 per month plus 7.9% (the 4% CPI rate published in January 2024 plus 3.9%) = £6.53 x 7.9% = £0.52 £6.53 + £0.52 = £7.05 per month Total monthly price: £22.91 + £28.63 + £7.05 = £58.59 Some call charges will also increase in price. See What about changes to call charges? for more details. |
| Monthly price from March 2025 to Feb 2026 | £62.10 Worked out as follows: Unlimited Fibre Broadband £22.91 per month plus 6% (the 2.1% CPI rate published in January 2025 plus 3.9%) = £22.91 x 6% = £1.37 £22.91 + £1.37 = £24.28 per month Line rental £28.63 per month plus 6% (the 2.1% CPI rate published in January 2025 plus 3.9%) = £28.63 x 6% = £1.72 £28.63 + £1.72 = £30.35 per month Evening and Weekend UK & Mobile Call plan £7.05 per month plus 6% (the 2.1% CPI rate published in January 2025 plus 3.9%) = £7.05 x 6% = £0.42 £7.05 + £0.42 = £7.47 per month Total monthly price: £24.28 + £30.35 + £7.47 = £62.10 Some call charges will also increase in price. See What about changes to call charges? for more details. |
When will you tell me my prices are going up?
We'll need to wait for the CPI rate to be published each January to work out how it will change your price. We'll aim to let you know before we increase our prices.
Does CPI Plus 3.9% apply to fixed price contracts?
If you've signed up to one of our fixed price contracts and you're still within your minimum term it will do exactly what you'd expect. Your broadband and line rental prices won't change during the minimum term of your contract.
If you're a fixed price contract customer, once your minimum term ends, the below terms will apply-
- Your broadband, line rental and any call plan you may have will increase to the then applicable out of contract price set out in our Price Guide at that time; and
- Your terms and conditions will include CPI plus 3.9% price changes. This means the price for broadband, line rental, call plans and call charges will be increased on or after 1st March every year by the Consumer Price Index rate of inflation published in January of that year plus 3.9%.
When your fixed price contract minimum term is coming to an end, we'll send you an end of contract reminder and offer you an account review.
What about changes to call charges?
Some call charges will go up in price in line with CPI plus 3.9% on or after 1st March every year. Please see our call charges for details.
Here's an example to show how call charge price increases work
A call to 01, 02 and 03 costs: 30.09p set up fee and 19.62 pence per minute rate.
- The CPI rate published in January 2024 is 7.9%
- The CPI rate published in January 2025 is 6%
| Date | Monthly Price |
|---|---|
| Price up to March 2024 | 30.09p set up fee 19.62 pence per minute rate |
| Price from March 2024 to Feb 2025 | 33.47p set up fee 21.17 pence per minute rate Worked out as follows: Set up fee 30.09p per call plus 7.9% (the 4% CPI rate published in January 2024 plus 3.9%) = 30.09p x 7.9% = 2.38p 30.09p + 2.38p = 32.47p set up fee Pence per minute rate 19.62p plus 7.9% (the 4% CPI rate published in January 2024 plus 3.9%) = 19.61p x 7.9% = 1.55p 19.61p + 1.55p = 21.17 pence per minute rate |
| Price from March 2025 to Feb 2026 | 34.42p set up fee 22.44 pence per minute rate Worked out as follows: Set up fee 32.47p per call plus 6% (the 2.1% CPI rate published in January 2025 plus 3.9%) = 32.47p x 6% = 1.95p 32.47p + 1.95p = 34.42p set up fee Pence per minute rate 21.17p plus 6% (the 2.1% CPI rate published in January 2025 plus 3.9%) = 21.17p x 6% = 1.27p 21.17p + 1.27p = 22.44 pence per minute rate |
What about changes to early termination charges?
Early termination charges will also be subject to CPI plus 3.9% price rises on or after 1st March every year from March 2022.
Please see our Price Guide for details.
Can I cancel my contract because of these changes?
If we're only putting up the price of broadband, line rental, call plans and call charges in line with the CPI plus 3.9% and you choose to cancel because of that, you'll still need to pay any early termination charges if you're still within your minimum term. This is because the amount we can increase your price by is fixed to any increase in CPI plus 3.9% and we'll have made the price increase clear when you signed up and you'll have agreed to it in our terms and conditions.
If we put up our prices for any other reason though, you might be able to end your contract early without paying any charge.
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