Teaching a UK learner driver — what’s legal, what’s safe

Private practice with a parent, friend or partner — alongside professional lessons with an Approved Driving Instructor (ADI) — is how most UK learners build the hours they need to pass. Nothing in law fixes how many lessons that takes — studies of drivers who have just passed put the average at roughly 37 to 52 hours with an instructor plus 13 to 20 hours of private practice, and the Department for Transport spent the first half of 2026 consulting on whether to make a minimum mandatory. The legal rules for the person in the passenger seat are short but strict, and the consequences of getting them wrong (driving without proper insurance or supervision) sit on both of you.

It’s illegal to accept any payment, including money for fuel, when you’re supervising someone who’s learning to drive.

What the law requires of the supervisor

The qualified driver sitting in the front passenger seat while a learner drives on a public road is the legal supervisor, and has to sit there for the whole session. As a full licence holder they are in charge of the car even though they are not driving it, which is what puts them inside the alcohol, mobile phone and other in-vehicle offences. The minimum requirements:

• Age 21 or older — full stop, no exceptions.
• A full driving licence held for at least 3 years — from the UK, the EU, Switzerland, Norway, Iceland or Liechtenstein, and covering the type of car being driven. Provisional licences do not count. An automatic-only licence lets you supervise in an automatic only; a full manual licence covers both, so the restriction bites in one direction and not the other.
• Fit to drive — within the same alcohol limits as if you were driving yourself (80mg / 100ml blood in England, Wales and Northern Ireland; 50mg / 100ml in Scotland). A supervisor over the limit is committing the offence of being in charge of a motor vehicle while over the limit under section 5 of the Road Traffic Act 1988.
• Not holding a mobile phone — the hand-held phone law applies to the supervisor because they are “in charge” of the vehicle. The 25 March 2022 tightening means even touching the phone at a red light counts.

The vehicle: L plates, insurance, MOT

Three vehicle requirements you have to get right before the first private lesson:

L plates (or D plates in Wales) — a MUST, with a should attached

Putting the plates on is law. Taking them off again is not, and the Highway Code sets the two out one after the other in Annex 3.

Any vehicle driven by a learner MUST display red L plates. In Wales, either red D plates, red L plates, or both, can be used. Plates MUST conform to legal specifications and MUST be clearly visible to others from in front of the vehicle and from behind. … Plates should be removed or covered when not being driven by a learner (except on driving school vehicles).

Capitals, then no capitals. That is the whole answer to the argument, and the MUST vs should guide explains the convention that produces it.

The legal specification. The Law line under Annex 3 points at regulation 16 of, and Schedule 4 to, the Motor Vehicles (Driving Licences) Regulations 1999. Regulation 16 makes display a condition of the provisional licence itself: the holder may not drive unless a mark in the form set out in Part 1 of Schedule 4 is shown “in such manner as to be clearly visible to other persons using the road from within a reasonable distance from the front and from the back of the vehicle”. Schedule 4 is a dimensioned diagram, not prose — a red letter on a white ground 178 mm by 178 mm, the L itself 89 mm wide and 102 mm tall on a 40 mm upright with a 38 mm foot. Corners of the white ground may be rounded off. In Wales, regulation 16(4) allows the Part 2 mark instead: a red “D” (Welsh: Dysgwr, learner) on the same 178 mm square. England, Scotland and Northern Ireland are L plates only. Magnetic plates are fine if they actually stay on at speed.

Who the rule binds. Because display is a licence condition, it binds the provisional licence holder. Drive with the plates in the boot and the learner is driving outside the terms of their licence — section 87(1) of the Road Traffic Act 1988, endorsed LC20, which our guide to learner penalty points sets out in full. The condition says nothing about a full licence holder, which is why the reverse case has a different answer.

So is it illegal to drive with L plates up on a full licence? No. No offence attaches to a qualified driver whose car still carries them. What applies instead is the advisory half of Annex 3 — plates should be removed or covered when a learner is not driving, with driving school vehicles expressly exempt. It is advice, so nobody is prosecuted for ignoring it, and it is worth following anyway: an L plate tells every other driver on the road that the car is being driven by someone who has never passed a test, and they will make allowances that are no longer true.

Northern Ireland runs two plates and a speed cap. A vehicle displaying L plates in Northern Ireland is limited to 45 mph — a restriction with no equivalent in Great Britain. Then, after passing, a newly-qualified NI driver must display amber R plates for a year from the date of the test, and a car or A1 motorcycle showing them is limited to 45 mph too, whoever is driving. The same removal wording applies: plates should be removed or covered when a restricted driver is not at the wheel.

Insurance that covers learner drivers

The learner driver’s name must be on a policy that covers them as a learner. The three common options:

• Add the learner to the car owner’s existing policy as a named driver. Usually the cheapest route — but the owner’s no-claims discount is exposed if the learner has to claim, so ask the insurer about that before the first session.
• A short-term learner-only policy taken out by the learner, covering them to drive someone else’s car. Ask the same no-claims question: whether a claim on it touches the owner’s policy varies by provider.
• The learner’s own annual policy, which is the route required if they are practising in their own car — they have to be the registered keeper as well as the insured driver.

Driving without insurance draws a £300 fixed penalty and 6 penalty points at the roadside, or an unlimited fine and disqualification if it goes to court, and the police can seize the car. The IN10 endorsement itself carries 6 to 8 points and stays on the record for 4 years. A supervisor who caused or permitted the uninsured use commits the parallel offence under section 143 of the Road Traffic Act 1988. See our driving offences guide for the full chain.

A roadworthy car

Current MOT (if 3+ years old), valid road tax, tyres with at least 1.6mm tread across the central three-quarters of the breadth, working lights, indicators, brakes, mirrors and washers. Faults in any of those become the supervisor’s problem at a roadside stop.

Where learners can — and cannot — drive

You can’t be paid for it (unless you’re an ADI)

Charging a learner for driving instruction is a criminal offence unless you are a DVSA-registered Approved Driving Instructor (ADI) or a trainee driving instructor holding a current trainee licence. The statutory offence is in section 123 of the Road Traffic Act 1988, which also requires the badge you can check from the kerb: both must display one in the windscreen, green for a qualified instructor and pink for a trainee.

The official guidance draws the line further out than the section itself: any payment counts, including money for fuel. So a parent or friend in the passenger seat is free to supervise as often as they like — but a tenner towards the petrol turns it into something else.

How many lessons do you actually need?

None, as a matter of law. There is no minimum lesson count, no minimum number of hours, no instructor sign-off and no waiting period tied to tuition. The official driving test guidance settles it in two sentences:

Only take your test when you can do everything without instruction. There’s no minimum number of lessons you must have done before you book and take your test.

The gate is a document check, not an hour count: a provisional licence, a theory test pass, and a practical test sat inside the two-year certificate window. Nothing in that sequence asks how you learned. The same is true after a fail — you rebook, and the only constraint is that you “have to choose a date at least 10 working days away”. No extra lessons are required to sit it again, by DVSA or by anyone else.

That is why “you need six hours” and “you need forty” are both wrong as stated. Neither is a rule.

What the research actually says

The numbers that circulate as a target are averages taken from people who had already passed, and they are worth reading with their spread attached rather than as a quota.

Two things fall out of that table. The first is that the professional half of the familiar “45 hours” figure is real and traceable — 45.15 in one sample, 47 in another, 37 to 52 across several. The second is that the private-practice half usually quoted alongside it, about 22 hours, sits at the very top of what has actually been measured rather than in the middle of it: Cohort II recorded 20 hours of informal practice, DfT’s summary of several studies gives 13 to 20, and the test-ready sample managed 7.62. Read it as a target worth aiming at, not a description of what most learners do. Note also the standard deviations. A mean of 45 with a spread of 28 is not a target anyone is failing to hit; it is a distribution wide enough to contain both the person who passes at 20 hours and the person who needs 90.

A minimum may be coming

The absence of a rule is a live policy question, not a settled one. The Department for Transport ran a consultation from 7 January to 11 May 2026 on introducing exactly the requirement that does not exist today, and is analysing the responses.

Currently, there is no mandatory minimum period of time and/or number of hours that must elapse between starting to learn to drive, passing a theory test and taking a practical driving test for a category B driving licence.

The consultation covered a minimum time in the learner stage, a minimum number of supervised driving hours, a mandated syllabus, and how any required learning would have to be delivered. It deliberately set out no preferred option, and comparable schemes abroad range from 3 to 12 months and, where hours are specified at all, from 40 to 120. Nothing has changed in the law yet. If it does, it will change what this section says.

Readiness, not arithmetic

“No minimum” cuts both ways, and the honest version of the advice is not fewer lessons. The test measures a standard — the national standard for driving cars and light vans — and the official instruction is to book only when you can do everything without instruction. Sitting early costs the fee and at least another 10 working days, and the same absence of a rule that lets you book at 15 hours is what lets you book at 15 hours unready; our guide to getting an earlier test date makes the same point from the other direction. Judging that moment is a job the ADI code of practice puts on your instructor — see checking your driving instructor for what they are committed to, and the cost of learning to drive for what the hours add up to in money.

What makes the hours count:

• Mix professional lessons with private practice — don’t replace one with the other. ADIs teach the technique; private practice consolidates it. The research above measures the two separately for a reason.
• Coordinate with the ADI — ask what they covered each lesson, then practise that on the private hours. Don’t introduce new manoeuvres on private practice; reinforce ones already taught.
• Keep a logbook — there is an official downloadable form for recording the practice you do without an instructor. Tracking each session, route, conditions and skills covered lets the ADI see progress and the learner spot gaps; show it to them at the next lesson.

Where to start — and what to avoid in the first 10 hours

Pick the environment carefully. The first ~10 hours of private practice should look like:

• Empty residential streets at low-traffic times — Sunday morning, weekday mid-afternoon outside the school run.
• Large empty car parks (supermarket out of hours, retail park early morning) with the landowner’s tacit consent — useful for clutch control, biting point, manoeuvres.
• Loops you can repeat — choose a 10-minute route the learner can do over and over until it’s reflexive, then expand.

Things to defer until the ADI has explicitly taught them:

• Roundabouts — the lane and signal discipline (see our roundabouts guide) is more nuanced than it looks from the passenger seat.
• Busy urban junctions, multi-lane traffic lights.
• Night driving until clutch and gear control are confident.
• Country roads with no centre line — narrow, fast, and with no lane discipline to fall back on when something comes the other way. Skill, not bravery. Rural roads as a whole are where most deaths happen rather than most crashes: 60% of Great Britain’s road fatalities in 2024 were on rural roads, which carry 45% of the traffic.

What a productive supervised hour looks like

The temptation is to give running commentary on every gear change. That fights the learner. The technique most ADIs recommend for parents:

1. Brief before you set off. “Today we’re practising left-hand junctions. I’ll tell you the next turn 200 metres out, and only intervene if there’s a safety issue.”
2. Use early warnings. “Take the next left, the one after the postbox” gives time to mirror, signal, position. Telling them at the junction is too late.
3. Debrief at the end, not mid-drive. Note the one thing that worked, the one thing to improve, save the rest for the next session.
4. Know what you can actually reach. A family car has no dual pedals, so there is nothing in the footwell to press for. If a situation does turn dangerous, the order that works is: speak firmly and clearly without shouting, take hold of the steering wheel, use dual controls if the car happens to have them, and only as a last resort use the handbrake for an emergency stop — telling the learner to stop as you do it.

If something goes wrong

A minor knock during a supervised lesson is treated like any other road traffic incident, and the supervisor is the person in charge of the car when it happens. Rules 286 and 287 set out the duties, and both 24-hour deadlines are conditional rather than automatic. Whoever was driving MUST stop, and give their name and address, the vehicle owner’s, and the registration number to anyone with reasonable grounds to ask; only if those details were not given at the scene does the incident have to be reported to the police as soon as reasonably practicable and in any case within 24 hours. Separately, if someone is injured and the insurance certificate is not produced at the time, that MUST be reported inside the same 24 hours, with the certificate produced to the police within seven days.

If the supervisor’s insurance is the active policy (the learner is a named driver on the parent’s car), the parent’s no-claims bonus is on the line. Some insurers offer telematics-based policies that protect a parent’s no-claims when a named learner has an at-fault claim — worth asking.

Quick reference

• Supervisor must be: 21+, full UK / EU / Switzerland / Norway / Iceland / Liechtenstein licence in the right category for at least 3 years, sober, not holding a phone, and not accepting any payment (including for fuel).
• Vehicle must have: L plates (or D plates in Wales) front and back — a MUST, to the 178 mm specification in Schedule 4 — plus valid insurance covering the learner, MOT, road tax.
• Taking the plates off again is a should, not a MUST. No offence attaches to a full licence holder driving a car that still displays them.
• Where: all public roads except motorways (motorways need an ADI + dual controls; not permitted at all for learners in Northern Ireland).
• Don’t take money for it — that requires DVSA ADI registration.
• How many lessons: no legal minimum, and none required before a retest. Drivers who have passed report means of 37–52 hours with an instructor and 13–20 hours of private practice, on a very wide spread.

Sources

• GOV.UK — Supervise a learner driver (age 21, 3-year full licence, eligible country list, no payment including for fuel)
• GOV.UK — The Highway Code, Annex 3 — learner driver requirements (MUST display red L plates; plates should be removed or covered when not being driven by a learner, except on driving school vehicles)
• legislation.gov.uk — Motor Vehicles (Driving Licences) Regulations 1999, regulation 16 (display of the distinguishing mark as a condition of the provisional licence; regulation 16(4) for the Welsh D plate)
• legislation.gov.uk — Motor Vehicles (Driving Licences) Regulations 1999, Schedule 4 (dimensioned diagram of the L and D marks — 178 mm square, red letter on white ground)
• GOV.UK — Driving test: cars (no minimum number of lessons; only take your test when you can do everything without instruction; rebook at least 10 working days away)
• GOV.UK — DfT — Introducing a minimum learning period for learner drivers (category B) (ran 7 January to 11 May 2026; no mandatory minimum at present; reported means of 37–52 instructor hours and 13–20 private practice hours)
• GOV.UK — DSA / TRL — From taking direction to taking control (CPR 465) (Table 3.2: mean 45.15 hours of formal lessons, mean 7.62 hours of practice with family and friends; Cohort II average of 47 hours)
• GOV.UK — DfT — Reported road casualties Great Britain, annual report: 2024 (fatalities on roads in rural areas, 60%, are over represented compared to the proportion of traffic on roads in rural areas, 45%)
• GOV.UK — National standard for driving cars and light vans (the skills, knowledge and understanding the test measures)
• GOV.UK — Practising with family or friends (supervisor conditions, learner insurance, the private practice record form)
• GOV.UK — Taking driving lessons (only an ADI or a trainee may be paid; green badge for qualified, pink for trainee)
• GOV.UK — Driving without insurance (£300 fixed penalty and 6 points; unlimited fine, disqualification and seizure at court)
• GOV.UK — Endorsement codes and penalty points (IN10 6 to 8 points, 4 years on the record; LC20 driving otherwise than in accordance with a licence)
• GOV.UK — Using a phone, sat nav or other device when driving (the law applies while supervising a learner and while stopped in traffic)
• GOV.UK — The drink drive limit (80mg/100ml blood in England, Wales and Northern Ireland; 50mg/100ml in Scotland)
• nidirect — nidirect — learner and restricted driver requirements (Northern Ireland: 45 mph limit on L plates, amber R plates for one year after passing, also 45 mph)
• nidirect — nidirect — Highway Code for Northern Ireland, Rule 253 (prohibited vehicles) (motorways must not be used by holders of provisional car licences)
• GOV.UK — Learner drivers on motorways from 4 June 2018 (ADI + dual controls only)
• GOV.UK — Become a driving instructor (ADI / PDI registration)
• GOV.UK — Highway Code Rules 274–287 (breakdowns, incidents and reporting)
• legislation.gov.uk — Road Traffic Act 1988 section 87 (driving otherwise than in accordance with a licence)
• legislation.gov.uk — Road Traffic Act 1988 section 123 (paid driving instruction must be by an ADI)
• legislation.gov.uk — Road Traffic Act 1988 section 143 (using or permitting use of a vehicle without insurance)

Highway Code excerpts are reproduced under the Open Government Licence v3.0.