From 1 April 2026, we’re increasing the standard monthly charge of some of our products and services as outlined in your contract terms and conditions.
This is in line with the Consumer Price Index (CPI) percentage (%) inflation rate published by the Office for National Statistics on 21 January 2026 which was 3.4% plus an additional 3.9%.
If you purchased your service or licence on or before 1 December 2024, then you will be subject to CPI+3.9% price increase in April 2026, apart from two exceptions below:
Teams Phone Direct Routing
If you purchased Teams Phone Direct Routing licences on or after 1 July 2024. you will receive a 6% price increase from 1 April 2026.
Teams Phone Operator Connect
If you have Teams Phone Operator Connect, and your contract started on or before 1 September 2024, you will be subject to a CPI+3.9% price increase from 1 April 2026.
But if you purchased Teams Phone Operator Connect subscriptions on or after 2 September 2024, you will receive a 6% price increase from 1 April 2026.
If you purchased services or products on or after 2 December 2024
For services and products purchased on or after 2 December, there are different price changes happening from 1 April 2026.
Learn more about all our 2026 price increases and what they mean for you.
You can check your terms and conditions in BT Business Terms.
CPI+3.9% price increase example
For a product with a standard monthly price of £40:
- If we assume a December 2025 CPI inflation rate of 2.0% plus 3.9%, the monthly price would go up by 5.9%.
- This would mean a monthly increase of £2.36 from 1 April 2026.
What will my CPI+3.9% 2026 price increase be?
If you’re subject to this type of increase, find out which services are increasing on 1 April 2026 in line with CPI+3.9%.
If this type of price increase doesn’t apply to you, learn more about all our BT Business price changes for 2026.
Frequently asked questions
Can you put your prices up?
In most of our standard terms and conditions, we have the right to amend our contract, and that includes increasing prices. The contract will say how we must tell our customers about amendments and what customers may do.
What is the Consumer Price Index (CPI)?
The Consumer Price Index (CPI) is a figure published by the Office for National Statistics (ONS) as a measure of inflation. It’s a reliable measure to reflect the increase in costs to run and invest in our network and the services we provide.
CPI is a measure of whether the cost of goods and services is going up or down. It’s based on average price changes from across several industries. It measures inflation by taking a basket of goods (things like food, clothes, petrol etc.) looking at what they cost last year, looking at what they cost now, and finding the difference.
However, the CPI leaves the costs of your home out of the basket (things like rises in mortgage payments, rents, and council tax) so they don’t get reflected in it.
The ONS publishes a new CPI inflation rate every month.
Find out more about CPI from the Office of National Statistics.
What is the CPI % inflation rate you’ll be using?
The CPI % inflation rate figure we’ll use is the December % inflation rate figure. This is published by the ONS in January of each year and it measures the average change in prices for consumers across the country, over the last 12 months.
What is CPI+3.9% and how do I work out the increase?
CPI+3.9% is the CPI % inflation rate figure plus 3.9%.
A new percentage (%) inflation rate is published by the ONS every month. We’re using the December 2025 percentage (%) inflation rate figure published in January 2026.
We’ll adjust standard monthly charges as outlined in your terms and conditions of contract by this amount, plus an additional 3.9% from 1 April of the same year.
If the CPI percentage (%) inflation rate figure is negative in the relevant year, then we’ll only increase monthly charges by 3.9%.
Does pricing decrease if the CPI percentage (%) inflation rate is negative?
No, in this scenario we’ll take the CPI percentage (%) inflation rate to be 0%, so the price increase will only be 3.9%.
Why do you add 3.9% to the underlying CPI percentage (%) inflation rate?
As the UK continues to embrace digital technologies, the demand for the connectivity and services that we provide is always rising. To maintain the quality of our network for our customers we’re continually investing in it, which is expensive.
The CPI element of our annual price increases enables us to continue running our network considering cost and wage inflation. The 3.9% lets us continually invest in the UK’s digital future. Things like improving our customer service and propositions and increasing social inclusion through widening our network footprint.
Are plan discounts affected?
You’ll still receive any discounts you get, and these will be applied to your new standard monthly charges.
Can I cancel my contract?
Yes, you can, but if you cancel your service before the end of your minimum contract term, you’ll need to pay a termination charge for cancelling early.
If you’re outside of your minimum contract term, you can end your service at any time without termination charges, but bear in mind that other charges may apply if you want to cancel services that are not affected by a price increase.