Written Question·Treasury·UIN HL1754

Red Diesel: Taxation

Tabled: 7 July 2026
Answered: 28 July 2026

Question

To ask His Majesty's Government what is the tax cost of train operators using red diesel instead of paying full fuel tax.

Answer

Qualifying locomotives for passenger and freight trains, and rail maintenance vehicles can use red diesel for propulsion. The Treasury does not hold information on the cost of rebated fuel used specifically by train operators.To assist the Noble Lord, I c...
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