SP30 vs SP50: A Simple Guide for UK Drivers

Speeding convictions are among the most common driving offences in the UK. Although both SP30 and SP50 codes relate to exceeding the speed limit, they apply to different types of roads and can result in different penalties depending on the circumstances.

Understanding the distinction between an SP30 and SP50 offence can help you respond appropriately if you are caught speeding. Here, the motoring offence solicitors at JMW explain what each code means, how a conviction will affect your driving licence and when these offences can result in more serious charges.

What Is an SP30 Offence?

An SP30 code applies when a driver is found exceeding the statutory speed limit on a public road that is not a motorway. This covers most built-up areas, rural roads and dual carriageways where a national or local limit applies.

In most cases, a motorist caught speeding on these roads will receive a Fixed Penalty Notice (FPN). This usually carries three penalty points on the driving licence and a fine. For more severe cases, such as driving considerably above the speed limit or creating a clear danger to other road users, the case may be referred to the Magistrates’ Court.

Courts have discretion to impose higher penalties based on the level of excess speed, road conditions and any aggravating factors such as careless driving, or driving an unsuitable vehicle. If convicted, the offence can carry sentences of between three and six penalty points, an unlimited fine and, in some cases, a driving disqualification.

SP30 endorsements remain on your driving record for four years from the date of the offence, although the points are considered “active” for three years for the purpose of totting up. Accumulating 12 or more active points within three years will lead to a minimum six-month driving disqualification, although it is often possible to consider an argument for ‘exceptional hardship’.

What Is an SP50 Offence?

An SP50 code applies when a driver exceeds the speed limit on a motorway. These offences often attract closer scrutiny because motorway speeds are higher and the potential for serious accidents is greater.

As with an SP30, a driver may receive an FPN if the speed was within a certain threshold. This is typically up to around 10% plus 9 mph over the limit, in line with National Police Chiefs’ Council guidance. For example, a driver travelling at up to 86 mph on a 70 mph motorway may be dealt with by way of an FPN rather than being summoned to court.

Cases involving very high speeds, dangerous driving or aggravating factors are typically referred directly to court.

Penalties for an SP50 offence range from three to six penalty points, an unlimited fine and a discretionary driving disqualification. The number of penalty points depends on the severity of the offence and any surrounding circumstances.

The endorsement remains on your driving licence for four years from the date of the offence, with three years counting towards a totting-up ban. Repeated offences or additional convictions for driving while using a mobile phone, driving uninsured, or ignoring traffic light signals can increase penalties and lead to longer disqualifications.

SP30 vs SP50 - What Is Considered the More Serious Offence?

While both SP30 and SP50 offences carry the same range of penalty points (three to six), SP50 offences are often treated more seriously due to the higher speeds involved. Courts may consider additional aggravating factors such as tailgating, poor weather, or heavy traffic when deciding on a sentence.

For example, a motorist caught driving 90 mph in a 70 mph zone on a clear motorway may receive a FPN. However, driving at 100 mph or above could result in an immediate court summons and possible disqualification.

SP30 offences, on the other hand, are more likely to occur in built-up or residential areas where exceeding the speed limit poses risks to pedestrians or cyclists. While penalties may be lower, these offences can still lead to bans or higher fines when the excess speed is severe or the driver shows a lack of reasonable consideration for others.

Both offences can affect your car insurance premiums, as insurers often view multiple speeding convictions as evidence of a higher risk.

When Speeding Leads to More Serious Offences

Not every speeding incident ends with a straightforward endorsement. Under the Road Traffic Act, certain circumstances can elevate a speeding offence into a more serious charge.

Careless Driving

If the speed or manner of driving is deemed careless or inconsiderate, prosecutors may bring a charge of careless driving. This occurs when a driver's conduct falls below the standards expected of a competent and careful driver.

Dangerous Driving

Where the conduct creates a serious risk to others, this may escalate to dangerous driving, which is treated as a far more serious offence. Dangerous driving can lead to long-term disqualification and, in severe cases, a prison sentence.

Accident Offences

If speeding results in an accident that causes injury or death, it can lead to charges of causing death by careless driving or dangerous driving.

Other related offences include driving a defective or unsuitable vehicle, ignoring traffic light signals or school crossing patrol signs, and using a mobile phone while driving.

If You Are Caught Speeding, How Long Do Points Stay on Your Driving Licence?

Both SP30 and SP50 penalty points remain on your driving record for four years from the date of the offence. For the first three years, they count towards the totting-up system, under which drivers who accumulate 12 or more active points within three years receive an automatic disqualification. For new drivers, the threshold is lower - six points within the first two years of passing the test can result in licence revocation. This means the driver must reapply for a provisional licence and retake both the theory and practical driving tests.

Even after the endorsement expires, insurers and employers can still see these offences on your record for several years, which may affect job opportunities and car insurance premiums.