Government estimates indicate that approximately 5.6 million vehicles will be covered by the tax in the 2028-29 fiscal year. The Office for Budget Responsibility has projected revenue of £1.1 billion for that year. Revenues are expected to increase to £1.435 billion in 2029-30 and to £1.865 billion in 2030-31. The implementation process now includes legislation, payment infrastructure, mileage verification procedures, refunds, penalties, and dispute resolution mechanisms. Vehicle owners will start paying the mileage fee when they renew their vehicle tax after April 1, 2028.