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Is It Legal to Copy a Car Key?

13 October 2026 6 min de lecture Regulations

Yes, copying a car key is legal as long as you own the vehicle or have the owner's permission. The law does not ban duplication: it requires you to prove the right of ownership. That is why a reputable auto locksmith always asks for your logbook (or proof of ownership) and photo ID.

It is a question that comes up often: is copying a car key really allowed? Many people confuse key duplication with some legal grey area. In reality, the act is legal and routine. What is regulated is the verification of your right to have that key copied. Here is a clear look at the legal framework, and at why a trustworthy professional will always ask to see your paperwork.

What the law says about key duplication

There is no law banning you from having a key copied for your own vehicle. You are free to order a precautionary spare, replace a lost key or add one for a partner. The operation is every bit as legal as copying a house key.

The nuance lies in the purpose. A car key gives access to a high-value asset and, in most cases, lets you start it. Lawmakers and insurers therefore treat the professional as a link in the security chain: they must be sure they are not unknowingly putting a vehicle into a thief's hands.

The essentials

Copying a key = legal. Copying a key without checking who is asking = a risky practice that any reputable professional refuses. Checking the paperwork protects the owner, not the other way round.

Why a reputable professional asks for your papers

If a provider agrees to copy your key without asking for anything, that is not a sign of speed: it is a red flag. Here is what a responsible auto locksmith checks, and why.

The vehicle registration document (V5C logbook)

This is the central document. It links a specific vehicle to a specific keeper. By presenting it, you show that the requested key really does correspond to a car in your charge. The technician checks that the registration plate, model and VIN match the vehicle in front of them.

Photo ID

This confirms that you are indeed the person named on the logbook, or that you are acting on their behalf. This double check — vehicle document plus identity — is the foundation of a by-the-book job.

Proof of ownership (where there is no logbook)

Logbook lost, car just bought, estate being settled? A bill of sale, a purchase invoice or an equivalent document can be enough. The goal stays the same: to establish a credible link between you and the vehicle.

A professional who asks for your papers is not making life difficult: they are protecting you against theft and putting their own liability on the line. That is precisely what sets a serious expert apart from a dubious operator.

Data protection and traceability: your data is safeguarded

Checking your identity means handling personal data. A reputable auto locksmith therefore follows data-protection rules to the letter.

This traceability also works in your favour: in the event of a dispute or doubt, the job is documented and tied to the correct owner.

The special cases

Used car bought without a spare

This is common. With the bill of sale and the new logbook (or the registration confirmation), a professional can reprogramme a key entirely legally. Reprogramming the keys of a used vehicle is, in fact, good security practice, since you have no idea how many copies are still out there.

Copying a key for a relative

Possible, with the owner's documents and, where relevant, authorisation. The technician weighs up whether the situation is consistent before proceeding.

Company or hire vehicle

The request must come from the legitimate holder (company, rental firm) or be backed by a mandate. Here too, traceability protects every party.

How DKP keeps every job above board

At DKP, checking the right of ownership is not an optional formality: it is a non-negotiable principle.

Want to know the price before you commit? See our full car key price list, or go back to the DKP home page to request a call-out.

Our rule

No papers, no key. This requirement is not there to slow you down: it guarantees your vehicle will never be duplicated by a malicious third party, and that our work stays fully covered by our professional liability insurance.

Frequently asked questions

Is it legal to have a copy of your car key made?
Yes, it is entirely legal as long as you own the vehicle or have the owner's permission. The law does not ban car key duplication: it simply regulates how the right of ownership is checked, so the service cannot be used to steal a vehicle.
Why does the locksmith ask for my logbook?
The V5C logbook proves you are entitled to have the key copied. A reputable professional asks for it as standard, along with photo ID in the same name, to make sure they are not handing a key to a thief. A provider who refuses these papers should make you question their integrity.
Can you have a car key copied for someone else?
Yes, provided you present the owner's documents (logbook or proof of ownership) and, where relevant, written authorisation. The technician checks that the request, the vehicle and the registered keeper are consistent in order to stay within the law.
Does the locksmith keep my documents after the job?
A locksmith who respects data-protection rules keeps only the data strictly needed to trace the job, stored securely and for a limited time. They never sell this information and keep no usable copy of the key.

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