Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate his Department has made of the number of vehicles evading road tax and the consequent loss of revenue for the last year for which figures are available.

The most recent roadside survey, published in November 2019, estimated that 1.6% of vehicles in UK traffic were unlicensed. This represents a very high compliance rate of 98.4% and is a statistically significant reduction in unlicensed vehicles since 2017. The maximum level of potential revenue loss was estimated to be £94 million over the course of one year. However, enforcement activities against unlicensed vehicles accounted for around £90 million in fines and penalties being reported by the Driver and Vehicle Licensing Agency during 2018/19.