A ULEZ loophole means self-employed workers can claim back tax on the £12.50 daily charge.
Sadiq Khan’s Ultra Low Emission Zone expanded across all of the capital’s boroughs on Tuesday.
The policy, which charges drivers a fee to drive in London if their vehicle doesn’t meet emissions standards, has seen a strong backlash since it was introduced.
Labour’s London Mayor said it was in tradespeoples’ interests to scrap their non-compliant vehicles because of the health risks.
But self-employed tradesmen may be able to claim it as a business expense when they submit their annual tax return, according to the Telegraph.