UK Legal Requirements for Towing: What You Must Know

The Towbar Man Team18 January 20263 min read

Stay legal and safe on the road. Learn about UK towing regulations, license requirements, and weight limits.

Towing in the UK comes with specific legal requirements. Here's everything you need to know to stay compliant and safe.

Driving License Requirements

If you passed your test after January 1997:

  • You can tow small trailers up to 750kg
  • You can tow heavier trailers where combined weight doesn't exceed 3,500kg
  • For anything heavier, you'll need to pass a Category B+E driving test

If you passed before January 1997:

  • You automatically have Category B+E entitlement
  • You can tow trailers up to 3,500kg
  • Combined vehicle and trailer weight can be up to 8,250kg

Weight Limits and Plates

Never exceed your vehicle's maximum Gross Train Weight (GTW), which is listed in your vehicle handbook and shown on the VIN plate.

Your vehicle has two key weight limits:

  • Braked trailer weight - Maximum for trailers with brakes
  • Unbraked trailer weight - Maximum for trailers without brakes (typically 750kg or less)

The 85% Rule: For safe towing, especially with caravans, your trailer weight should not exceed 85% of the vehicle's kerb weight. This is a safety guideline rather than a legal requirement, but new towers should stay well within this limit.

Speed Limits When Towing

UK speed limits are reduced when towing:

  • Motorways & dual carriageways: 60mph (not 70mph)
  • Single carriageways: 50mph (not 60mph)
  • Built-up areas: 30mph unless signed otherwise

Equipment Requirements

Mirrors: You must have adequate vision of the road behind. If the trailer is wider than your vehicle, you need extended towing mirrors on both sides.

Number plate: Your trailer must display the same number plate as your towing vehicle, clearly visible and correctly lit at night.

Lights: All trailer lights must work properly:

  • Brake lights
  • Indicators
  • Side lights
  • Fog lights
  • Number plate light
  • Reflectors

Breakaway cable: Trailers with overrun brakes must have a functioning breakaway cable properly connected to the towing vehicle.

Insurance and MOT

Insurance: Check your policy covers:

  • Towing a trailer or caravan
  • The specific weight you're towing
  • Damage to the trailer and third parties

MOT: If your trailer weighs over 750kg, it requires an annual MOT after 3 years old. The test covers brakes, lights, and structural integrity.

Safety Checks Before Towing

Before every journey, ensure:

  • Trailer coupling is correctly engaged
  • Safety chains are properly attached
  • Jockey wheel is fully raised
  • Breakaway cable is connected

Penalties for Non-Compliance

Towing illegally can result in:

  • Fines up to £1,000
  • Points on your license
  • Vehicle seizure
  • Insurance invalidation
  • Prosecution in case of an accident

Get Professional Advice

Not sure if your setup is legal? The Towbar Man can help:

  • Advise on weight limits for your vehicle
  • Ensure your electrical system meets legal requirements
  • Fit towbars to manufacturer specifications
  • Provide guidance on safe towing practices

Contact us today for expert advice on legal towing requirements and professional towbar installation across the Midlands.

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