Billmonitor - Keeping the networks honest

Let Billmonitor find out exactly how much you're being overcharged and match you to the right contract

And if you’re mid-contract, our monthly Bill Check-up helps you make the most of it.

Billmonitor analyses your mobile bills

Against 2 million contracts

And matches you to the right new contract

Each month, Bill Check-up reviews your plan and alerts you if you’re free to switch to a new contract

Set up a free account and get free monthly bill monitoring

Bill Analysis

I have online billing

I'm happy to share my account details to get the most accurate deal

Analyse my online bill

Calculator

I don't have online billing

I'm happy to get an estimated deal based on my estimated usage

Use the calculator

Billmonitor found William is on the wrong contract and is paying £41 more than necessary

Stephen can save £188 and still get a new Huawei P20 128GB

Billmonitor found Christina is on the wrong contract and is paying £41 more than necessary

Taylor is on wrong contract and is overpaying by £30 a year

Billmonitor found Jeremy is on the wrong contract and is paying £207 more than necessary

Louis, one of the few already on the right contract, now knows it for sure

William is already on the right contract - Billmonitor congratulated William

Kara is already on the right contract - Billmonitor congratulated Kara

Chris can feel happy in the knowledge of already being on the right contract

Chris is on the wrong contract and can save £905 this year

Jay is already on the right contract - Billmonitor congratulated Jay

Billmonitor found Scott is on the wrong contract and is paying £114 more than necessary

David can feel happy in the knowledge of already being on the right contract

James can feel happy in the knowledge of already being on the right contract

Andrew now knows how to find a new Huawei P20 Pro 128GB and save £117 a year

Ian is already on the right contract - Billmonitor congratulated Ian

Zoe can get the Apple iPhone 6S 32GB on the right contract – and save £58 a year

Leah can feel happy in the knowledge of already being on the right contract

Mary is already on the right contract - Billmonitor congratulated Mary

Ian is on wrong contract and is overpaying by £172 a year

Jamie can get the Apple iPhone 7 32GB on the right contract – and save £124 a year

David is already on the right contract - Billmonitor congratulated David

Billmonitor found Ross is on the wrong contract and is paying £59 more than necessary

Adrian is on wrong contract and is overpaying by £36 a year

Alice can feel happy in the knowledge of already being on the right contract

Andrew is on wrong contract and is overpaying by £44 a year

Lee now knows how to find a new Samsung Galaxy S8 64GB and save £314 a year

Billmonitor found Jacob is on the wrong contract and is paying £222 more than necessary

Kelly can save £149 and still get a new Apple iPhone 8 64GB

Louis is on wrong contract and is overpaying by £61 a year

Andrew, one of the few already on the right contract, now knows it for sure

Mary is already on the right contract - Billmonitor congratulated Mary

Christian is on the wrong contract and can save £77 this year

Billmonitor found Derek is on the wrong contract and is paying £66 more than necessary

Nico can feel happy in the knowledge of already being on the right contract

Emma is on wrong contract and is overpaying by £251 a year

Paul can save £389 and still get a new Apple iPhone 8 plus 64GB

Andy is on the wrong contract and can save £40 this year

Elizabeth is on wrong contract and is overpaying by £108 a year

Susan, one of the few already on the right contract, now knows it for sure

Samuel is on wrong contract and is overpaying by £243 a year

Rory is on wrong contract and is overpaying by £51 a year

Amy is already on the right contract - Billmonitor congratulated Amy

Monica is on wrong contract and is overpaying by £44 a year

Liam can feel happy in the knowledge of already being on the right contract

Richard is on the wrong contract and can save £273 this year

Robert is on wrong contract and is overpaying by £36 a year

Sharon is already on the right contract - Billmonitor congratulated Sharon

John now knows how to find a new Apple iPhone X 64GB and save £191 a year

David can feel happy in the knowledge of already being on the right contract

Alan now knows how to find a new Apple iPhone XR 64GB and save £173 a year

Lisa is on the wrong contract and can save £47 this year

James is already on the right contract - Billmonitor congratulated James

Rebekah, one of the few already on the right contract, now knows it for sure

Michael, one of the few already on the right contract, now knows it for sure

Joanna, one of the few already on the right contract, now knows it for sure

Emma is on wrong contract and is overpaying by £87 a year

Alison can get the Apple iPhone XR 128GB on the right contract – and save £266 a year

Emma is on the wrong contract and can save £39 this year

Billmonitor found Donna is on the wrong contract and is paying £103 more than necessary

Curtis is on the wrong contract and can save £114 this year

Sarah is on the wrong contract and can save £28 this year

Henry is on wrong contract and is overpaying by £151 a year

Caroline is on the wrong contract and can save £108 this year

Joseph is on wrong contract and is overpaying by £65 a year

Scott is on wrong contract and is overpaying by £28 a year

Lucia can save £51 and still get a new Apple iPhone 8 64GB

Gordon is on the wrong contract and can save £115 this year

Desmond, one of the few already on the right contract, now knows it for sure

Sara is on the wrong contract and can save £188 this year

Gary is already on the right contract - Billmonitor congratulated Gary

Carolyn can feel happy in the knowledge of already being on the right contract

Leslie is on the wrong contract and can save £635 this year

Laura is already on the right contract - Billmonitor congratulated Laura

Aria, one of the few already on the right contract, now knows it for sure

Anders is already on the right contract - Billmonitor congratulated Anders

Clare is already on the right contract - Billmonitor congratulated Clare

William can feel happy in the knowledge of already being on the right contract

Featured in

For accurate results Billmonitor finds the best tariff by accessing your online bills. Provide it with log-in details of your online account and it calculates average usage over 3-6 months to find the best contract.

MoneySavingExpert.com

Billmonitor has become the first mobile phone comparison site to be accredited by the communications regulator Ofcom.

BBC

Dear Billmonitor Team,
Thank you for fabulously easy to use facility and the fast response to my mobile contract bill analysis enquiry. The information you sent me is clear and helpful and I also look forward to your advice at contract-renewal time.

Kerri

Billmonitor was the first mobile tariff comparison service to be accredited by Ofcom, the UK telecommunications regulator, and forms part of the UK government’s MiData project.

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Using advanced maths to turn the complexity of bills and tariffs into simple, actionable intelligence, it allows users to make informed decisions and save money in a market where the networks do their best to keep things murky.

Testimonials

Barts Cancer Institute saved 42% on their corporate bills

London-based Investment Management Firm saved £92,000

Central Surrey Health reduced their costs by nearly 50%

AMS Aircraft saved 58% on out of allowance costs

Amius saved 37.5% through improved tariff and bundle selection

How much could you save?

How many devices do you have?

Let us know how many devices (phones and tablets) you have and we’ll give you a rough estimate of how much you’re being overcharged.

Potential savings

*more than 1,000 devices?
Call us: 0800 689 3035

Now get it spot on.

If you give us your phone account details for online billing, our evidence-based engine can 'crunch' your bill and discover the best plan for your business (49% savings average).

We’ll then arrange a free, no obligation consultation to talk you through the findings.

Don’t worry if you don’t have your account details to hand, just send us your contact details via the form below and we’ll email you about how to find out how much you could save.

How it works

Which network are you on?

We’ll need your mobile account login details to be able to analyse your bills.

Do you have more than one network provider or a number of contracts with different end dates?

We can still help.

Call us: 0800 689 3035

Case Study

CSH Surrey, Surrey's largest NHS community services provider, cuts contract costs by nearly 50%.

I was initially sceptical about Billmonitor’s ability to achieve savings as our average cost per connection was already less than £10 on public sector tariffs but they really exceeded our expectations and reduced our contract costs by nearly 50%.

See case study

Research

The Billmonitor investigation into the B2B mobile provider ‘Wild West’ reveals that only one in ten SMEs get a fair deal from their providers, while Ofcom turns a blind eye.

Read the report

Case Study

Barts Cancer Institute, the leading public sector research centre, saves 42%.

It was important for us to find a truly independent advisor who would also be able to support the BCI throughout the switching process and Billmonitor truly exceeded our expectations.

See case study

Case Study

Billmonitor helps a London-based investment management firm save £92,000.

By identifying historical billing errors and selecting tariffs and bundles matching the client's usage, Billmonitor saved the firm £92,000 and will now periodically review for further optimisations as part of our monitoring service.

See case study

Billmonitor’s consumer service was the first mobile tariff comparison service to be accredited by Ofcom, the UK telecommunications regulator, and forms part of the UK government’s MiData project.

If you do nothing else, ask these three questions to your network provider

‘How many dormant devices do we have?’

Hint:

Most businesses have dormant devices they’re not aware of (and that the networks won’t tell you about unless you ask). This alone means the average business is being overcharged by more than 10%.

‘How much does it cost us when we go over our monthly allowances for data or international calls?’

Hint:

Many businesses incur massive charges when they go over their monthly allowances, especially for data and international calls. Having the right bundles can prevent this and dramatically reduce costs.

‘What percentage of our bill is allocated to handsets?’

Hint:

There is no such thing as a free handset – the higher your monthly tariff, the larger the handset fund you should be offered. On average a good handset fund represents about 40% to 50% of your total contract costs.

Last year the mobile phone networks overcharged UK businesses and consumers approximately

£ 7,600,000,000

We're here to keep them honest.

For accurate results Billmonitor finds the best tariff by accessing your online bills. Provide it with log-in details of your online account and it calculates average usage over 3-6 months to find the best contract.

MoneySavingExpert.com

Billmonitor has become the first mobile phone comparison site to be accredited by the communications regulator Ofcom.

BBC

Dear Billmonitor Team,
Thank you for fabulously easy to use facility and the fast response to my mobile contract bill analysis enquiry. The information you sent me is clear and helpful and I also look forward to your advice at contract-renewal time.

Kerri

How many devices do you have?

Now get it spot on.

Case Study

Research

Case Study

Case Study

If you do nothing else, ask these three questions to your network provider

Hint:

Hint:

Hint:

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Get the cheapest energy deal with Switchd

We're sorry but your browser is out-of-date!

Sign in

Let Billmonitor find out exactly how much you're being overcharged and match you to the right contract

I have online billing

I don't have online billing

For accurate results Billmonitor finds the best tariff by accessing your online bills. Provide it with log-in details of your online account and it calculates average usage over 3-6 months to find the best contract.

MoneySavingExpert.com

Billmonitor has become the first mobile phone comparison site to be accredited by the communications regulator Ofcom.

BBC

Dear Billmonitor Team,Thank you for fabulously easy to use facility and the fast response to my mobile contract bill analysis enquiry. The information you sent me is clear and helpful and I also look forward to your advice at contract-renewal time.

Kerri

Billmonitor was launched in 2009 by three mathematicians in Oxford.

How many devices do you have?

Now get it spot on.

Which network are you on?

Case Study

Research

Case Study

Case Study

If you do nothing else, ask these three questions to your network provider

Hint:

Hint:

Hint:

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Get the cheapest energy deal with Switchd

We're sorry but your browser is out-of-date!

Dear Billmonitor Team,
Thank you for fabulously easy to use facility and the fast response to my mobile contract bill analysis enquiry. The information you sent me is clear and helpful and I also look forward to your advice at contract-renewal time.