What happens if I am caught doing 81 in a 50?

The NPCC table sends every case at or above 76 mph in a 50 mph limit to court, so expect a summons rather than a fixed penalty.

How many points is 81 in a 50?

Band C carries 6 points, or the court can disqualify instead: disqualify 7 to 56 days. A fixed penalty, where one is offered, is 3 points.

How is the fine worked out?

As a percentage of relevant weekly income: a starting point of 150 per cent within a range of 125 to 175 per cent. It is capped at £1,000, or £2,500 on a motorway.

Does the speedometer reading matter?

No. The recorded speed is what the device measured. Type approved devices are allowed a positive error of 2 mph, or 3 per cent above 66 mph, which is a measurement allowance rather than a permitted margin over the limit.

Speeding

81 mph in a 50 mph limit

Worked from the Sentencing Council guideline and the NPCC enforcement table, which answer two different questions about the same journey.

Band C

Sentencing Council band

Sentencing Council for England and Wales, Speeding (Revised 2017) (as of 24 April 2017)

6 points

Points if convicted

Sentencing Council for England and Wales, Speeding (Revised 2017) (as of 24 April 2017)

Court

What usually happens

National Police Chiefs' Council, Guidance on the enforcement and disposal of speeding offences (2025), version 2.0 (as of 31 July 2025)

Checked on 7 September 2026.Sentencing Council for England and Wales, Speeding (Revised 2017) (as of 24 April 2017)

Is 81 mph in a 50 mph limit band A, B or C?

Band C. On a 50 mph limit the guideline puts 51 to 65 mph in band A, 66 to 75 in band B and 76 and above in band C, and 81 falls in band C.

The band decides the sentence only if the case reaches a magistrates' court. Most speeding is dealt with by a fixed penalty or a course, and neither of those is set by the guideline.

What band it carries

Band C penalties from the speeding guideline

Fine starting point	150 per cent of relevant weekly income
Fine range	125 to 175 per cent of relevant weekly income
Penalty points	6 points
Disqualification	Disqualify 7 to 56 days
Statutory maximum	£1,000, or £2,500 on a motorway

What the fine would be at three incomes

Band C fine at three weekly incomes
Weekly income after tax	Starting point	Range
£300	£450	£375 to £525
£500	£750	£625 to £875
£900	£1,000	£1,000 to £1,000

A court with no information about income assumes £440 a week. Where the only source is state benefit, or net income is £120 a week or less, the income is deemed to be £120.

Where this speed sits on the enforcement table

81mph in a 50mph limit sits in band C of the Sentencing Council grid.
The NPCC table sends every case at or above 76mph in a 50mph limit to court, so the band C sentence below is the one that matters.
No weekly income was given, so the fine is shown as the guideline shows it, as a percentage of relevant weekly income. A court with no information at all assumes £440 a week.
The fine is capped at £1,000, and at £2,500 where the offence was on a motorway.

Common questions

What happens if I am caught doing 81 in a 50?: The NPCC table sends every case at or above 76 mph in a 50 mph limit to court, so expect a summons rather than a fixed penalty.
How many points is 81 in a 50?: Band C carries 6 points, or the court can disqualify instead: disqualify 7 to 56 days. A fixed penalty, where one is offered, is 3 points.
How is the fine worked out?: As a percentage of relevant weekly income: a starting point of 150 per cent within a range of 125 to 175 per cent. It is capped at £1,000, or £2,500 on a motorway.
Does the speedometer reading matter?: No. The recorded speed is what the device measured. Type approved devices are allowed a positive error of 2 mph, or 3 per cent above 66 mph, which is a measurement allowance rather than a permitted margin over the limit.