Buying Report · £14.99
Tools

Number plates

What year is an 03 plate?

03 plates were issued to cars first registered in Great Britain between 1 March 2003 and 31 August 2003. Below: how old those cars are, when the first MOT falls due, the tax rules and the models most often tested. To decode a whole plate, use the number plate age checker.

MOT data updated 28 September 2026. Tax rates for the year from 1 April 2026.

Issued from1 March2003
Issued until31 August2003
Age today23 years
First MOT dueMarchMarch 2006 to August 2006

Which year is it?

An 03 plate covers March to August 2003. The September identifier that follows it is 53.

The plate normally shows when the car was first registered, which can be later than when it was built. A car imported new gets the identifier of its first UK registration. A used import gets an identifier that matches its age (the date it was built or first registered abroad), or a Q plate when its age cannot be proved.

MOT

A car's first MOT is due by the third anniversary of its first registration, then every year. For an 03 plate that first MOT was due between 1 March 2006 and 31 August 2006, depending on the registration date. You can take an MOT up to a month (minus a day) before the due date and keep the same renewal date.

All cars: share of MOT tests that failed at the age these cars are now (DVSA data, 2022 to 2025).
AgeMOT fail rateTests (n)
23 years39.6%619,531

MOT fail rates by make, model and age

Vehicle tax

  • Cars first registered from 1 March 2001 to 31 March 2017 are taxed by CO2 band, A to M: from £20 a year (band A, up to 100 g/km) to £790 a year (band M, over 255 g/km) (rates from 1 April 2026). The band is on the V5C.
  • Cars over 225 g/km first registered before 23 March 2006 pay the band K rate, £445 a year.

Work out the tax for one car

ULEZ and clean air zones

Transport for London's guide: petrol cars that meet the ULEZ standard (Euro 4) are generally those first registered after 2005, though some from 2001 meet it. Diesel cars that meet it (Euro 6) are generally those first registered after September 2015. The year on the plate is a starting point only: the Euro standard of the car decides.

ULEZ and clean air zone checker

Most tested models first used in 2003

The models with the most MOT tests among cars first used in 2003. DVSA's data gives the year of first use, not the month, so this covers every plate issued in 2003, not only this one.

Models first used in 2003: MOT tests 2022 to 2025, counting only the ages with at least 1,000 tests of that model, and the share that failed at the latest such age.
ModelMOT tests (n)AgeFail rateMore
Volkswagen Golf73,65022 years42.6% (n=13,842)All yearsProblemsRecallsULEZ
Ford Fiesta70,23022 years44.4% (n=12,144)All yearsProblemsRecallsULEZ
MINI Cooper and One58,72222 years43.6% (n=10,565)All yearsProblemsRecallsULEZ
Ford Focus55,54122 years44.3% (n=9,092)All yearsProblemsRecallsULEZ
Toyota Yaris50,60222 years45.8% (n=9,727)All yearsProblemsRecallsULEZ
Volkswagen Polo47,71322 years51.5% (n=8,629)All yearsProblemsRecallsULEZ
BMW 3 Series46,40122 years32.4% (n=9,131)All yearsProblemsRecallsULEZ
Nissan Micra41,64922 years47.4% (n=7,639)All yearsProblemsRecallsULEZ
Vauxhall Astra35,28022 years42.4% (n=5,979)All yearsProblemsRecallsULEZ
Vauxhall Corsa35,10522 years47.9% (n=5,417)All yearsProblemsRecallsULEZ
Honda Civic33,99022 years45.7% (n=6,435)All yearsProblemsRecallsULEZ
Peugeot 20631,07822 years46.6% (n=4,915)All yearsProblemsRecallsULEZ

A fail rate depends on age, mileage and upkeep, so compare models of the same age only.

Questions

What year is an 03 plate?

03 plates were issued to cars first registered in Great Britain between 1 March 2003 and 31 August 2003.

When is the first MOT due on an 03 plate?

By the third anniversary of first registration: between 1 March 2006 and 31 August 2006.

Can an 03 plate be on a newer car?

Yes. A private (cherished) number can be moved to a newer car, which then looks older than it is. It can never go on a car first registered before 1 March 2003, because a plate may not make a car look newer than it is. How to transfer a private number plate.

Other plates

Decode a plate: number plate age checker

Before: 52 plates. After: 53 plates. Every age identifier · Area codes (the first two letters)

Found one you might buy? Vet the specific car.

The plate tells you roughly when a car was first registered. The VetTheCar Buying Report brings together the MOT history, mileage readings and running costs of one car before you pay.

See a sample Buying Report Free car tools

Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVLA vehicle registration numbering rules (INF104); DVSA anonymised MOT test data, class 4 normal tests, 2022 to 2025; GOV.UK vehicle tax rate tables (DVLA). MOT data updated 28 September 2026. Tax rates for the year from 1 April 2026.

Not affiliated with or endorsed by DVSA or DVLA. How we calculate these figures · Data sources