What licence do you need to drive a tipper truck?

You can drive a tipper truck with a standard car licence if the total GVW is up to 3.5 tonnes. Anything over 3.5 tonnes and up to 7.5 tonnes will require a Category C1 licence; anything over 7.5 tonnes will require a Category C licence. 

However, if you passed your driving test before 1997, you'll have automatic grandfather rights, and you'll be able to drive vehicles up to 7.5 tonnes (Category C1 Licence).