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. The widely-cited industry rule of thumb, drawn from older DSA / DVSA research, is an average of 45 hours of professional lessons plus 22 hours of private practice. 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

Anyone in the front passenger seat of a vehicle being driven by a learner on a public road is the legal supervisor. They are treated as being "in charge of" the vehicle by police and DVSA for the purposes of 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 — for the category of vehicle being driven. Per gov.uk, the licence must be from the UK, the EU, Switzerland, Norway, Iceland or Liechtenstein; provisional licences do not count. If you only have a manual full licence, you can only supervise in a manual car (and vice versa for automatic).
• 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 red "L" on a white square, 178mm by 178mm, fixed to both the front and the back of the car, must be visible when the learner is driving and removed (or covered) when an already-qualified driver takes the wheel. In Wales you can use either L plates or "D" plates (Welsh: Dysgwr, learner). In Scotland, England and Northern Ireland only L plates are legal. Magnetic L plates are fine if they actually stay on at speed.

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 a family member's existing policy as a named learner driver. Usually the cheapest option — the additional premium is typically £40–£80 per month on top of the parent's existing policy.
• A short-term learner-only policy — typically 1 to 6 months. Useful when practising in a family car you're not the registered keeper of. £80–£200 per month is the usual range.
• A standalone annual learner policy if the learner owns or is the main driver of the car they're practising in.

Driving without insurance is a 6-point offence (endorsement code IN10) with a £300 fixed penalty or potentially an unlimited fine and disqualification at court. The supervisor commits the related offence of permitting use of an uninsured vehicle under section 143(2) 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 Potential Driving Instructor (PDI) on a registered Trainee Licence. The statutory offence is in section 123 of the Road Traffic Act 1988. ADIs display a green octagonal badge in the windscreen; PDIs a pink triangular one.

The gov.uk supervise-a-learner-driver page goes further than section 123: it states explicitly that "it's illegal to accept any payment, including money for fuel, when you're supervising someone who's learning to drive" . So while a parent or friend in the passenger seat is free to supervise, even a tenner for petrol from the learner falls foul of DVSA's guidance.

How much practice — the 45+22 rule of thumb

The widely-cited industry rule of thumb, drawn from older DSA / DVSA research, is that learners who pass first time typically have, on average, 45 hours of professional driving instruction combined with 22 hours of private practice . The figures are averages — learners vary widely, and the numbers do not appear verbatim on the current gov.uk/learn-to-drive-a-car page — but they're useful as a planning anchor:

• Mix professional lessons with private practice — don't replace one with the other. ADIs teach the technique; private practice consolidates it.
• 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 — DVSA suggests a learner driver record (a paper or app log) tracking each session, route, conditions and skills covered. Useful for the ADI to see progress and for the learner to spot gaps.

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 — these are where most newly-passed drivers crash. Skill, not bravery.

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. Resist the dual-pedal reach. Unless the supervisor's car has a dual brake (ADI cars do, family cars don't), trying to reach across is more dangerous than letting the learner handle the consequence at low speed in a safe environment.

If something goes wrong

A minor knock during a supervised lesson is treated like any other road traffic incident. The supervisor — as the legal "person in charge" — is liable for the insurance claim, the report (if anyone is injured or property is damaged, you must report within 24 hours), and any consequences of failing to do so. The Highway Code Rules 286–287 cover reporting duties.

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, valid insurance covering the learner, MOT, road tax.
• 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 much: DVSA suggests ~45 professional hours + ~22 private practice hours on average to pass.

Sources

• GOV.UK — Supervise a learner driver (age 21, 3-year full licence, eligible country list, no payment including for fuel)
• GOV.UK — Learner drivers on motorways from 4 June 2018 (ADI + dual controls only)
• GOV.UK — Learn to drive a car (starting-out guidance; the ~45 hours professional + ~22 hours private practice figure is widely-cited industry knowledge from older DSA/DVSA research, not currently on the page)
• 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 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)