The postal service plans to become a net-zero carbon-emission business with a 100 per cent alternative fuel fleet by the date.
The deadline coincides with Government plans which will see no new vehicles using petrol or diesel manufactured after 2030.
Royal Mail said it will rework its car schemes to accelerate the switch to electric vehicles.
The drive towards electrification will extend to postmen and women who want to buy their vehicles through the company’s salary sacrifice scheme.
Royal Mail said its fleet of 3,500 company cars has already undergone a significant move to electric vehicles.
Jenny Hall, director of corporate affairs at Royal Mail, said: “We’ve already revealed our ambition to turn our fleet to alternate fuel vehicles in order to do the right thing by the communities we serve.
“It makes sense for us to focus on company cars too, and we hope that this new scheme will benefit our colleagues while reducing overall company emissions further.”
Last month Royal Mail announced plans for a 10-fold increase in the number of electric vehicles it uses across its UK fleet.
The company is rolling out around 3,000 additional electric vehicles targeting delivery offices in areas focused on ultra-low emission zones and green cities.
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