TfL looking into flaws with its online 'Compliance Checker'.

Motorists in London could be facing unexpected T-Charge bills after inaccuracies were uncovered in the Transport for London online ‘Compliance Checker’.

An investigation by has found that the Transport for London (TfL) online system, which is designed to tell motorists whether they will need to pay the £10 surcharge for bringing a car that does not meet the Euro 4 emissions standards into the centre of London, is not always accurate.

We tested the system by using the number plates of several pre-Euro 4 cars and found that some were deemed exempt from the charge.

For example, we found that a Y-reg (2001) Volvo V70 (similar to the one pictured, below), which meets Euro 3 emissions standards and was built four years before Euro 4 legislation existed, was deemed ‘not subject to the T-Charge’ because it ‘meets at least the Euro 4 standard’.

2001 Volvo V70
T-Charge Data Inaccuracies

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On the flip side, we discovered that a 2005, 55-plate Jaguar X-Type Estate, which, according to government data, meets the Euro 4 specifications, was deemed to incur the T-Charge because the Compliance Checker said it did not achieve the required emissions standard.

TfL confirmed that it was looking into the matter.

A spokesperson for TfL said: ‘Ultimately, all this material comes from the DVLA, and we take our cue from how they’ve registered the cars, but we will look into it.’

However, the TfL website seems to acknowledge that there may be inaccuracies in its data by including a disclaimer that says: ‘The classification of your vehicle may change if Transport for London receives information regarding its emissions that shows it does not comply with the T-Charge emissions standards.’

This news follows revelations from London’s mayor, Sadiq Khan, that the T-Charge will cost taxpayers £27,000 a day to run, while the Road Haulage Association has criticised the scheme, claiming that clean air should not come at ‘any price’.


Motoring lobby group FairFuelUK also slammed the T-Charge, describing it as ‘pointless’ and ‘unnecessary’, while some members of the public have accused TfL of punishing those who cannot afford newer cars.

There has been support for the charge from other quarters, though, with Greenpeace claiming that the T-Charge 'will reduce air pollution'.