MOT Cost Calculator

Free MOT Cost Calculator: calculate mot cost instantly with transparent formula, worked examples and tips. No signup.

The MOT test is an annual roadworthiness check required by UK law for all vehicles over three years old. The Test fee is capped by the DVSA at £54.85 for cars and £29.65 for motorcycles — garages may charge less but cannot legally exceed this cap. A failed test means the vehicle cannot be driven on public roads until repairs are made and a retest passes. The MOT Cost Calculator estimates your total bill by combining the test fee with likely repair costs based on common advisory categories from prior years. Loan Payment Calculator can help model full annual running costs once the MOT estimate is known.

Around 40% of vehicles fail their first MOT each year according to DVSA statistics. The most common failure categories are lighting and signalling faults, tyre defects, and suspension wear — many of which are identifiable from advisory notices on the previous year's certificate and can be pre-emptively repaired before the test date, often at lower cost than labour charged on the day.

Enter the Test fee quoted by your garage (up to the DVSA maximum of £54.85 for cars in 2024).
Add estimated repair costs for items flagged as advisories on last year's MOT certificate.
Include a retest fee if applicable — most garages offer a free partial retest within 10 working days of a first failure.
The calculator totals your expected MOT bill so you can budget accurately before the due date.

MOT cost components

Total MOT cost = Test fee + Repair costs + Retest fee (if applicable)

DVSA maximum test fees (2024): Cars £54.85 | Motorcycles up to 200cc £29.65 | Motorcycles over 200cc £37.80 | Goods vehicles up to 3,000 kg £58.60

Worked example: Test fee £48.00 + advisory tyre replacement £80 + wiper blades £15 = £143 total expected MOT cost for this service visit.

Understanding your MOT cost estimate

Average repair costs by failure category

Typical UK repair costs for common MOT failures: tyres (per tyre, budget brand) £40–60; brake pads (per axle) £80–120; brake discs and pads (per axle) £150–250; headlight bulb £15–40; wiper blades £15–25; suspension ball joint £80–150; catalytic converter £200–500; windscreen replacement £150–350. Labour rates vary by region — London and South East garages typically charge 20–40% more than the national average. The total test fee plus repairs gives the true MOT cost for the year.

Finance tips and best practices

Book before the expiry date — driving with a lapsed MOT is a criminal offence carrying a fine of up to £1,000 (except when driving to a pre-booked test appointment).
Check all exterior lights before your test — lighting and signalling failures account for approximately 33% of first-attempt MOT failures and typically cost under £20 to correct yourself.
Check tyre tread depth (legal minimum 1.6 mm across the central three-quarters of the tyre) and pressure — tyre defects are the second most common MOT failure category.
Review advisory notices from your previous MOT certificate — advisories are not failures but are early warnings of items likely to fail at the next test.

DVSA data: approximately 40% of vehicles fail their first MOT test each year in the UK.
Most common failure categories: lighting and signalling (33%), tyres (10%), suspension (9%), brakes (8%), driver's view of the road (7%).
The DVSA maximum car test fee has been £54.85 since 2010; the national average test fee is approximately £35–45 as garages compete below the cap.
Vehicles manufactured before 1 January 1980 are exempt from the MOT requirement (as of 2018, if not substantially changed).

Common mistakes to avoid

Booking at a franchised dealer without comparing prices — the test itself is identical whether conducted at a main dealer or independent garage; only the test fee and repair labour rates differ.
Ignoring prior-year advisories — advisory items frequently become outright failures at the next test if left unaddressed.
Driving to the test centre in a vehicle with a known serious defect — this can result in a roadworthiness prosecution separate from the MOT failure.
Assuming a pass certificate means no work is needed — a pass with advisory notices means issues were noted that do not yet meet the failure threshold but will worsen over the year.

MOT test fee caps are set by the Driver and Vehicle Standards Agency (DVSA) under The Motor Vehicles (Tests) Regulations 1981 as amended. The cap applies to the test itself; garages may charge separately for repairs and retests. Driving without a valid MOT (other than to a pre-booked test) is an offence under the Road Traffic Act 1988. Repair cost estimates in this calculator are indicative only and vary by vehicle make, model, region, and garage.