TL;DR
- Under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, you have 14 calendar days to cancel any mobile contract signed at a distance (online or by phone) without any early termination fee.
- The 14-day period begins the day after you receive the goods (for a handset contract) or the day after you receive order confirmation (for a SIM-only contract).
- If you have used mobile data, minutes, or texts during the cooling-off period, the operator may charge you a proportionate amount for that service use — but nothing more.
- For in-store contracts, the 14-day right does not automatically apply; you depend on the store’s own returns policy or the specific terms of the contract.
- Cancel in writing (email or letter) to create a clear record; verbal cancellation over the phone is valid but harder to evidence.
The legal source of the cooling-off right
The 14-day cooling-off right for distance contracts originates in EU Directive 2011/83/EU on consumer rights, implemented in the UK through the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 (SI 2013/3134). Following the UK’s departure from the EU, the Regulations remain part of retained UK law and continue to apply in full. The Regulations apply to contracts concluded at a distance — meaning online, by telephone, by post, or through any other remote channel — or off-premises (for example, at your door or in a temporary sales booth). A mobile contract taken out through an operator’s website, app, or telephone sales line is a distance contract and therefore falls squarely within the Regulations.
The right to cancel without giving a reason during the 14-day period is unconditional. You do not need to cite a fault, a change in circumstances, or any other justification. The operator cannot require you to pay an early termination fee for cancelling within the cooling-off window, and any contractual term that purports to restrict or charge for this right would be unenforceable under the Consumer Rights Act 2015.
When the 14-day period starts and ends
For a contract that includes a physical handset, the 14-day period begins the day after you receive the device. If your phone arrives on a Tuesday, the clock starts on Wednesday and you have until the end of the fourteenth calendar day to give notice of cancellation. For a SIM-only or data-only contract where no goods are delivered, the period begins the day after you receive order confirmation or the contract document — whichever comes later. Operators are legally required to inform you of the right to cancel and of the cancellation period; if they fail to provide this information, the period is extended to 12 months plus 14 days under Regulation 31.
The key point is that you must give notice of cancellation within the 14-day window, not complete the entire return process within it. Notice can be given by completing the model cancellation form that Regulations require operators to provide, by sending a clear written statement by email or post, or by making an unambiguous verbal statement by telephone. Once notice is given, you then have a further 14 days to return any physical goods.
| Contract type | Does the right apply? | When the 14 days starts | Key condition |
|---|---|---|---|
| Online (website or app) handset contract | Yes — Regulations apply | Day after handset received | Must give cancellation notice within 14 days; return device within further 14 days |
| Online SIM-only or data-only contract | Yes — Regulations apply | Day after order confirmation or contract document received | Operator may charge proportionate fee for service used during cooling-off period |
| Telephone sales (cold-call or inbound) | Yes — distance contract | Same as above depending on goods or service | Operator must confirm contract terms in a durable medium (e.g., email) |
| In-store contract at a permanent retail outlet | No statutory right unless off-premises | N/A | Depends on store policy and contract terms; no default 14-day right |
| Contract signed at temporary stall or at your door | Yes — off-premises contract | Day after contract document received | Full Regulations apply; operator must supply cancellation form |
What you owe if you used the service during the cooling-off period
The Regulations make a deliberate distinction between a service contract and a goods contract when calculating what you owe on cancellation. For the mobile service element (calls, texts, data), if you expressly requested that the service begin immediately — and the operator asked for this consent before starting the service — you may be charged a proportionate amount reflecting the service used up to the point of cancellation. This is calculated as a fraction of the total contract price over the full term, proportionate to the service provided.
For the handset, the operator must refund the full price of the device, though it may deduct an amount reflecting any diminishment in value caused by use beyond what is necessary to inspect the goods. Using a phone as you would in a shop to evaluate its features is unlikely to constitute diminishment; extensively using it as a daily device for two weeks may. The burden of demonstrating diminishment and quantifying any deduction falls on the operator, not the consumer. Return postage costs are generally borne by the consumer unless the operator failed to inform you of this requirement.
How to cancel within the cooling-off period
The most reliable method is a written cancellation notice sent by email to the operator’s customer services address, quoting your account number and stating clearly that you are exercising your right to cancel under Regulation 29 of the Consumer Contracts Regulations 2013. The date-stamped email provides evidence of when notice was given. Many operators also publish a cancellation form on their website, as they are required to do under Schedule 3 of the Regulations; using the operator’s own form is equally valid.
If you cancel by telephone, make a note of the date, time, name of the adviser, and any cancellation reference number given. Some consumers follow up a telephone cancellation with a confirmatory email reiterating the cancellation and the reference number to create a paper trail. This is sensible practice: should a dispute arise over whether or when cancellation was communicated, written evidence is considerably more useful than a recollection of a telephone conversation.
What happens to the phone number and the SIM
If you ported your mobile number into the new contract before cancelling, the operator should be able to port the number back out again on request. Arrangements vary by operator and depend on timing; in some cases the number will simply remain with the operator until you port it to a new provider. Do not assume that cancelling the contract automatically returns your number to a previous provider. If retaining a specific number matters to you, clarify the number-portability position with the operator before or at the time of giving notice to cancel.
For SIM-only contracts, the SIM should simply be deactivated on cancellation. Physical SIM cards are not typically returned. eSIM profiles can be deactivated remotely; if you have an eSIM installed, confirm with the operator that it has been fully deprovisioned following cancellation, particularly if the handset will be used on a different network.
What this means in practice
James ordered a SIM-only plan online on a Monday evening, agreeing that the service could start immediately. By the following Wednesday — nine days later — he had decided the coverage was not what he needed. He emailed the operator on Wednesday citing Regulation 29 of the Consumer Contracts Regulations 2013 and his account number, requesting cancellation. The operator confirmed cancellation and sent a final bill for nine days of service, proportionate to the monthly charge. No ETF appeared. The total charge was modest — approximately one-third of the monthly price — and reflected only the nine days of actual service. James’s number was ported to a new provider the following week without issue.
Related Guides
How we verified this
This article was researched using the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 (SI 2013/3134) on legislation.gov.uk, the Consumer Rights Act 2015, GOV.UK guidance on cancelling online and phone contracts, and Ofcom’s published consumer advice on mobile contract cancellation rights.
Disclaimer: Kaeltripton.com is an independent UK editorial publisher. We are not regulated by Ofcom or the FCA and we do not sell or arrange mobile services, insurance, or financial products. This content is for general information only and is not legal, financial, or technical advice. Rules, prices, and operator policies change. Verify the current position with Ofcom, GOV.UK, the ICO, or your provider before acting. ICO registered ZC135439. Last reviewed: 2026-06-05.
Frequently Asked Questions
Can I cancel a mobile contract within 14 days?
Yes, if the contract was taken out at a distance (online, by app, or by telephone) or off-premises (at your door or at a temporary stall), the Consumer Contracts Regulations 2013 give you an unconditional right to cancel within 14 calendar days without paying any early termination fee. You must give notice of cancellation within the 14-day window. In-store contracts at permanent retail outlets do not carry the same statutory right; you would rely on the store’s own returns policy or the contract terms.
What do I owe if I cancel a mobile contract within 14 days?
If you consented to the service beginning during the cooling-off period, the operator may charge you a proportionate amount for the service actually used up to the point of cancellation. This is calculated as a fraction of the full contracted price. No early termination fee can be charged. For a handset, you are entitled to a full refund of the device price, though the operator may deduct for any diminishment in value caused by use beyond mere inspection — the burden of proving this is on the operator.
How do I cancel a mobile contract in the cooling off period?
Send a written notice to the operator — email is fastest — stating clearly that you are cancelling under Regulation 29 of the Consumer Contracts Regulations 2013 and quoting your account reference. Many operators provide a model cancellation form on their website; using it is equally valid. Verbal cancellation by telephone is also effective but always follow it up with a confirmatory email including any cancellation reference number to create a dated paper trail in case of subsequent dispute.
Does the cooling off period apply to in-store contracts?
No, not as a statutory right. The Consumer Contracts Regulations 2013 apply to distance contracts (online, phone, post) and off-premises contracts (at your door or temporary stalls). A contract signed at a permanent retail outlet — a high-street mobile shop, for example — is an on-premises contract and does not carry the automatic 14-day statutory cancellation right. Some retailers voluntarily extend a returns or cancellation window as a matter of policy, but you would need to check the specific store’s terms.
What happens to my phone if I return it in the cooling off period?
You must return the handset within 14 days of giving cancellation notice. The operator must refund the full device price, but may deduct an amount reflecting any reduction in value caused by use beyond what is reasonably necessary to inspect the goods. Superficial evaluation — testing the camera, checking the screen — is unlikely to constitute value-reducing use. Heavy everyday use for the full two-week period may give the operator grounds for a deduction. Return postage is generally the consumer’s cost unless the operator failed to disclose this requirement before the contract was concluded.
Sources
- Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 — legislation.gov.uk
- Consumer Rights Act 2015 — legislation.gov.uk
- GOV.UK — Online and distance selling
- Ofcom — Cancelling your mobile contract
- Citizens Advice — Cancelling goods or services bought online or over the phone
