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Since September 2001, plates change twice a year: March plates carry the year's last two digits (26 = March 2026), September plates add 50 (76 = September 2026 to February 2027). Before 2001, age was a single letter prefix (and before 1983, a suffix). The format runs until 2051.
What The Number Plate Year Calculator Works Out
- Registered: the two digits in the middle of a current-format plate (two letters, two digits, three letters, in use since September 2001) are the age identifier. Codes under 50 are the March release and simply are the year: 26 means first registered between March and August 2026.
- How the code works: the September release adds 50, so 76 is September 2026 to February 2027. The system has headroom to 2051; the designers, asked what happens then, gave the correct civil-service answer that it is somebody else's problem.
- Same year's other plate: the matching code from the other half of the year, so you can tell a March car from a September car of the same year. The two "new plate" months account for a large share of annual registrations and dealers and buyers orbit the change dates.
- Where it was first registered (advanced): the first two letters are the DVLA memory tag. The first letter is the region (A for Anglia, L for London, S for Scotland, Y for Yorkshire) and the second narrows it to an office; I, Q and Z are never used first. A Q plate replaces the age code where the vehicle's age cannot be verified, such as kit cars.
- Age of a car on this plate (advanced): years and months from the start of the release period to today, with the youngest possible age for a car registered at the end of the six-month window. It is the first-glance check that a listing's "2026 car" matches its metal, and the plate-to-V5C match is used-car buying's most basic authenticity test.
- Older plate decoded (advanced): prefix plates (A123 BCD) ran from August 1983 to August 2001, changing every August until the annual plate-change fever pushed the system to two dates in 1999. Suffix plates (ABC 123D) ran from 1963 to 1983. Before those came dateless plates, whose lack of any age code makes them the aristocracy of the personalised-plate market.
- Codes for a year (advanced): reverse lookup: type a year and get its two codes with their date ranges, handy when searching the classifieds for a particular model year.
- Next plate change (advanced): the code that will appear on brand new cars next and the date it arrives, worked out from today's date.
- Personalised plates: a car may wear an older-looking plate but never a younger one, so the age code is a floor rather than a fact on any private registration. The final three letters are random, certain combinations are banned each release, the green flash marks zero-emission vehicles, and the mandatory typeface and spacing make stylised plates an MOT failure and a fine.