A missing licence, a late arrival or a smartwatch left on a wrist can each end a theory test appointment before it starts, according to GOV.UK. This article walks through the day in order, using the GOV.UK guide “Theory test: cars” (no date is shown on the page; read on 25 October 2026). The page tells holders of Northern Ireland licences to bring the photocard and the paper counterpart, and it points holders of non-Great Britain licences to separate rules. Northern Ireland’s own arrangements are covered in the guide to learning to drive in Northern Ireland. General information, not an official booking guide.
The night before: what goes in your bag
GOV.UK says you must take your UK photocard driving licence. If you have a licence from Northern Ireland, bring the photocard and the paper counterpart. Anyone who still has only a paper licence must bring a valid passport as well, and the page says that if you do not have a passport you need to get a photocard licence.
- Lost licence: you need to apply for a replacement, which GOV.UK says could take up to 15 days to arrive. If it does not come in time, rearrange the test.
- Name changed after booking: bring proof, for example a marriage certificate or deed poll. Without proof, GOV.UK says you must cancel and book a new test in your new name using your new licence number.
- Wrong or missing documents: the page says the test will be cancelled and you will not get your money back.
The first step, a provisional licence, is covered in the guide to learner permits and provisional licences.
Arriving: the 15-minute rule
You must arrive 15 minutes before the theory test starts. If you are late, GOV.UK says the test will be cancelled, you will lose your money and you will have to book another test. There is no waiting area at the test centre for any adults or children who come with you.
All electronic devices must be turned off before you enter. The page names mobile phones, smart watches and fitness tracking devices, and says you will not be allowed to take the test if you bring a device you cannot turn off.
Medical monitoring devices
You can use a monitoring device for a medical condition, but GOV.UK says the Driver and Vehicle Standards Agency (DVSA) must have approved it when you booked. If you did not tell DVSA at booking, you need to cancel the current appointment; there is a full refund if you give at least three working days’ notice. When rebooking, select “Yes” when asked whether you need support.
Lockers and the clear plastic box
You can only take personal belongings into the test room if DVSA approved them at booking. Everything else goes in a locker. The page lists small bags, coats and jackets, hats or caps, earphones, mobile phones, watches, wallets and purses, books and pens, and anything in your pockets. If the centre has no lockers, belongings go in a clear plastic box that staff keep safe during the test.
Identity and security checks
Staff need to see your face to check that you are the person in your photo ID. Anyone wearing headgear for religious or cultural reasons needs to remove it so the face can be seen, and GOV.UK says they will be allowed to do this in a private area with a female member of staff where possible.
The security check looks for anything that could be used to cheat. The page says staff will not touch you, but will ask you to:
- show your pockets are empty;
- roll up your sleeves;
- pat yourself down;
- show the top of your socks;
- stay still while a handheld metal detector is passed around you; and
- show your ears, to make sure there is no hidden earpiece.
You will not be allowed to take the test if you do not let staff check. GOV.UK also states that it is illegal to cheat at the theory test and that you can be sent to prison and banned from driving.
In the room, in brief
The test has two parts, multiple-choice questions and hazard perception, which are booked and taken as a single test; you must pass both parts to pass. After the multiple-choice part you can have a break of up to three minutes before hazard perception starts. How each part is scored is explained in the guide to why the two parts are scored separately. GOV.UK says to mention any reading difficulty, disability or health condition when you book; the guide to extra support for the theory and driving tests explains the options.
Afterwards: result, certificate and retakes
You get the result at the test centre. A pass brings a letter with a pass certificate number, which GOV.UK says you need when you book and take your driving test. The number lasts for two years, and you must pass the driving test in that time or you will have to pass the theory test again.
A fail also brings a letter, telling you which parts you did not score enough points on. You must book and take the full test again, even if you passed one part, and wait at least three working days before retaking it.
Quick questions
Can I take the test in another language? GOV.UK says some official books and software are translated by approved organisations, but you can only take the test itself in English, Welsh or British Sign Language.
Can a parent wait inside for me? The page says there is no waiting area for adults or children who come with you.
The bottom line
GOV.UK’s theory test guide turns on a short list: a UK photocard licence (with the paper counterpart for Northern Ireland licences, or a passport with a paper licence), arrival 15 minutes early, all devices off, belongings in a locker, and willingness to complete the identity and security checks. A pass gives a certificate number valid for two years; a fail means retaking the whole test after at least three working days. General information, not an official booking guide.
Sources
- Theory test: cars, GOV.UK guide, read on 25 October 2026 (gov.uk)