Government announces road tax increase What are you playing at, Darling? Visordown NewsFri, 26 Mar 2010 MOTORCYCLE road fund licence - better known as road tax - is set to rise from April 1st 2010, the Government announced earlier this week in the Budget. Motorcycle road tax increases:Above 600cc: £66 to £70 401cc and 600cc: £48 to £50Unchanged:151cc to 400cc: £33Up to 150cc: £15