Historic car tax - when you can stop paying car tax
Once a vehicle reaches 40 years old it is classed as historic and, although it still has to be taxed every year, there is no charge. From January the exemption will apply to cars made before 1980 or registered before 8 January 1980.
At what age do UK cars become tax exempt?
You do not need to get an MOT if: the vehicle was built or first registered more than 40 years ago. no 'substantial changes' have been made to the vehicle in the last 30 years, for example replacing the chassis, body, axles or engine to change the way the vehicle works.
Can I just cancel my car tax?
You'll automatically get a refund cheque for any full months left on your vehicle tax. The refund is calculated from the date DVLA gets your information. If you cancel your Direct Debit just before a monthly payment is due, DVLA may still take the payment.