Classic car tax and MOT exemption
Tax exemption and MOT exemption are separate tests. A car can qualify for one without qualifying for the other. I would check the dates, the paperwork and any alterations before relying on either.
The historic vehicle tax dates for 2026
GOV.UK says vehicles built before 1 January 1986 can stop paying vehicle tax from 1 April 2026. If the build date is unknown, a vehicle first registered before 8 January 1986 qualifies. The tax exemption is rolling: the qualifying cut-off moves forward a year each April. These are the tax cut-offs for 2026, not a promise that any car becomes tax exempt on its fortieth birthday. Check GOV.UK again for a later tax year.
You must apply for the historic tax class. You must still tax the vehicle even though you pay nothing. Vehicles used for hire or reward, or commercially for a trade or business, are excluded from this tax exemption.
Taxing a historic vehicle at the Post Office
Use a Post Office that handles vehicle tax. Take:
- The V5C log book in your name.
- The V11 reminder, if you have one.
- Evidence of a current MOT where one is needed, or evidence of MOT exemption using form V112.
If you do not have the log book, use form V62 to apply for one and follow the Post Office instructions on GOV.UK. The Post Office sends the paperwork to DVLA, which returns an updated log book. Keep the vehicle taxed while the application is processed if you intend to use it.
When does a car become MOT exempt?
For most cars, the test is that the vehicle was built or first registered more than 40 years ago and has not been substantially changed in the previous 30 years. This is different from the April tax cut-off. Some vehicle categories have additional restrictions, so use the full government criteria rather than age alone.
Declare MOT exemption using V112 when taxing. If you cannot confirm that the vehicle meets the criteria, do not claim exemption.
Modified classics and substantial changes
The government's guidance considers changes to the technical characteristics of the chassis or frame, monocoque bodyshell, axles and running gear, and engine. The detailed rules matter more than a general description such as restored or modified.
- A replacement chassis, frame or monocoque bodyshell of the same pattern is not a substantial change.
- Alternative capacities of the same basic engine and alternative original-equipment engines are not treated as substantial changes. Other engine changes need checking against the criteria.
- Alterations to preserve a vehicle where original-type parts are no longer reasonably available can be acceptable.
- Period alterations need evidence: the guidance covers changes made in production or within 10 years after production ended.
- Changes to axles and running gear to improve efficiency, safety or environmental performance can be acceptable.
Keep evidence of the car's history and alterations. Tell DVLA about changes that affect the details on the V5C. An acceptable change for MOT purposes does not remove that responsibility.
Roadworthiness and a voluntary MOT
An exempt car must still be roadworthy. GOV.UK says driving a vehicle in a dangerous condition can bring a fine of up to £2,500 and 3 penalty points. Exemption is not permission to overlook brakes, tyres, steering or structural corrosion.
A voluntary MOT is optional. I would regard it as a sensible annual independent check, not a substitute for maintenance or a guarantee that everything is sound.
Historic tax class and London's ULEZ
Vehicles registered with DVLA in the historic tax class are generally exempt from London's ULEZ. Check TfL's current exemptions and your vehicle's status before travelling. Do not assume MOT exemption by itself establishes ULEZ exemption.
A worked example for a 1950s car
The MG T-Series registration, tax and MOT page applies the paperwork to a 1950s car. For the wider question of what counts as a classic, see when is a car a classic?
Questions people ask
When does a car become MOT exempt?
Normally when it was built or first registered more than 40 years ago and has had no substantial changes in the previous 30 years. Check the detailed criteria and declare exemption when taxing. If you cannot confirm eligibility, do not claim exemption.
How old does a car have to be to be tax exempt?
For the exemption available from 1 April 2026, it must have been built before 1 January 1986. If the build date is unknown, first registration before 8 January 1986 is the alternative test. Apply for the historic tax class; age alone does not change the tax class.
Do I still need to tax a historic vehicle?
Yes. Historic tax class means you do not pay vehicle tax, not that you can ignore taxing the vehicle. If it is kept off the public road and untaxed, make a SORN instead.
Can a modified classic be MOT exempt?
Possibly. The age test still applies and the changes must meet the government's substantial-change criteria and acceptable-alteration exceptions. If you cannot establish that the vehicle qualifies, do not declare it MOT exempt.
Sources: GOV.UK: historic vehicles; GOV.UK: tax eligibility; GOV.UK: 40-year rolling tax exemption; GOV.UK: applying for exemption; GOV.UK: MOT exemption criteria; FBHVC: MOT exemption guidance; TfL: ULEZ exemptions; London Assembly: historic vehicles and ULEZ; GOV.UK: SORN.
Checked 19 October 2026