A simple number plate mistake could see drivers slapped with a hefty £1,000 fine if they have dirt covering their number plate.
Reg plates are probably something most drivers never think about, unless they’re lucky enough to splash the cash on a private number plate.
If you do decide to get a custom number plate, even if it’s just a posh typeface for your existing standard number plate, you could quickly fall foul of very strict rules around number plate visibility, driving experts have warned.
According to Showplates World, authorities are tightening their checks on rule-breaking registration plates being driven around on public roads. Not only do number plates have strict rules about how they look, but there are also rules on plates getting too dirty or obscured by grime and dust too.
They stress that under UK regulations, number plates must follow strict rules on size, spacing, colour and reflectivity. Plates must display characters in the correct font (known as the “Charles Wright” typeface), be clearly visible, and not obstructed by dirt or damage.
Front plates must have black characters on a white background, while rear plates must use black characters on yellow. Illegible, dirty or obscured plates are all fineable offences.
They said: “Failing to display a legal number plate could result in a fine of up to £1,000, and in some cases, the registration mark may be withdrawn. Driving with a false or incorrectly spaced plate can also cause your car to fail its MOT.
“Traffic enforcement systems, including automatic number plate recognition (ANPR), rely on plates being correctly formatted. If a plate is hard to read due to dirt, damage or stylised alterations, it can trigger further investigation. In more serious cases, deliberately altering a plate to avoid detection is considered fraud and may lead to prosecution.”
They added that there’s a list of common plate pitfalls which catch drivers out. They said many of these mistakes are unintentional but still break regulations:
Incorrect spacing – adjusting characters for cosmetic effect.
Non-standard fonts or designs – using decorative lettering or custom typefaces.
Obstructed or dirty plates – mud, snow or bike racks covering characters.
Faded or cracked plates – age-related wear making plates hard to read.
Misplaced bolts or screws – fasteners that resemble extra dots or distort characters.
Showplates World added: “Drivers often don’t realise how strict the rules are. Even something as simple as incorrect spacing or a bolt in the wrong place can make a plate illegal. It’s not just about fines — non-compliant plates affect road safety and can prevent ANPR systems from working properly.
“What may seem like a small cosmetic detail can have significant consequences. With enforcement systems continuing to crack down, motorists should take the time to check their number plates. A quick inspection could be the difference between a smooth journey and a £1,000 penalty.”