Consumer Price Index

Everything you need to know about the CPI increase

What is the Consumer Price Index?

The Consumer Price Index measures the overall change in consumer prices over time based on a representative basket of household goods and services. The CPI rate is published by the Office of National Statistics.

How does CPI +3.9% affect my iD Mobile plan?

Your monthly plan will be adjusted each April by the CPI rate published in February (+3.9% fixed rate). Price adjustments do not affect add-ons or additional charges.

For 2023, the CPI rate (+3.9% fixed rate) is +14%.

Does the 2023 CPI +3.9% adjustment apply to me?

The April 2023 CPI +3.9% adjustment will apply if you've upgraded to or purchased a new iD Mobile 24-month phone plan on or after 1st November 2022 and before 1st February 2023.

If you are affected by the 2023 price adjustments, you'll receive a text from us in March 2023 confirming the exact adjustment that will be applied to your April 2023 bill onwards.

CPI Price Adjustment Calculator

You can use our handy calculator below to estimate your new monthly cost.

Tell us what you're currently paying each month (excluding add-ons or additional charges), and we'll show your new estimated monthly cost from April 2023 onward.







Note: If you're on an iD plan purchased before 1st Nov 2022, your plan costs won't be affected by this years' CPI +3.9% fixed price adjustment.

For more info, please view iD Mobile’s terms and conditions (clause 12.23).

CPI FAQs

Why is iD adjusting prices?

Every year, most networks adjust their prices for customers as inflation rises. Historically, iD Mobile has implemented the lowest average price adjustments compared to the major networks (EE, Three, O2 and Vodafone).

We appreciate that price adjustments are of concern to consumers and are never welcome. However, inflationary pressure is hitting us all – both as consumers and as businesses, and the cost to operate and sustain our value-focused and highly reliable network is increasing.

Even with annual price adjustments, our value-focused offering will remain one of the most competitive in the market, with our handset plans being £185 a year cheaper vs the major networks. We will continue to deliver great service and features to our customers, such as data rollover, inclusive roaming and the UK’s fastest 5G at no extra cost.

Why is CPI (Inflation) so high this year?

The cost of living has been increasing across the UK, resulting in the highest inflation levels for 30 years.

As CPI measures the overall change in consumer prices based on a representative basket of goods and services over time, CPI has unfortunately increased over the past year to 10.1% in Feb 2023.

Why has iD moved from RPI to CPI since November 2022?

We believe that the Consumer Price Index (CPI) rate is better reflective of the true rate of inflation that goods and services are rising or falling. An additional +3.9% will be also applied to the CPI rate so we can maintain and improve our network and services.

Why has iD added +3.9% in addition to CPI?

The cost to operate and sustain a value-focused and highly reliable network is increasing. From our cost of supply with manufacturers, maintaining and developing the network infrastructure, and even the small but critical things – like delivering items to customers. The additional 3.9% will allow us to continue to invest in and improve our network and services.

What happens if CPI is negative?

In the unlikely event that CPI is negative, we would not factor the negative value in our calculations, and your plan will simply increase by 3.9%.

I’m on a SIMO plan. Will I be affected by the CPI price increase?

No. The April 2023 CPI +3.9% adjustment will only apply if you’ve upgraded to or purchased a new iD Mobile phone plan on or after 1st November 2022 and before 1st February 2023.

What if I have a discount on my monthly plan?

If you have a discount, it won't change. The price adjustment is applied to your original monthly plan cost, and your discount is applied afterwards.

What happens if I upgrade to another plan?

You won't get a CPI +3.9% price adjustment in 2023 if you’ve upgraded to a new plan on or after the 1st of February 2023. However, a CPI +3.9% adjustment will apply in 2024.

Can I cancel my iD plan?

We’d love you to stay but yes, you can cancel your plan by giving us 30 days' notice. Please note: You may need to pay an early termination charge if you cancel before the end of your contract. You can cancel your plan and check any possible early termination charges in the iD Mobile app.

How can I check my bill?

The CPI +3.9% adjustment will appear on your April 2023 bill. To view your latest bill, sign into the free iD Mobile App or visit My Account online, then go to 'Billing', 'Current month'.

I upgraded or purchased my iD plan before 1st November 2022. Will the price of my plan adjust by CPI +3.9%?

No. Your plan will instead adjust by RPI only.

To learn more about RPI, click here.