MOT
Check whether a historic vehicle needs an MOT
Enter the manufacture or first registration date, then answer the substantial change question.
Summary: In Great Britain, a historic vehicle can be MOT exempt when it reaches the 40 year age threshold and meets the Department for Transport's preservation and substantial change criteria. Age alone does not establish exemption: you must confirm the change history before declaring it exempt. The vehicle must still be roadworthy.
Checked on .
Must a vehicle meet all four exemption conditions?
Department for Transport guidance, which applies in England, Scotland and Wales, says a vehicle does not need an MOT if it was built or first registered more than 40 years ago and no substantial changes have been made to it in the last 30 years. Those vehicles are known as vehicles of historical interest. You declare the exemption when you tax the vehicle. You must tax it even if you do not have to pay.
| Condition | What must be true |
|---|---|
| Age | Manufactured or first registered at least 40 years previously |
| Preservation | Historically preserved or maintained in its original state |
| Changes | No substantial changes to the technical characteristics of main components |
| Declaration | Exemption declared when the vehicle is taxed |
Does a later engine swap still need an MOT?
It depends on what was swapped. Alternative cubic capacities of the same basic engine, and alternative original equipment engines, are not treated as a substantial change. A later engine that is not the same basic engine and not original equipment is a change to a main component. If that change happened in the last 30 years, the vehicle still needs an MOT even after it has reached 40 years of age.
Example
A car manufactured on 12 March 1985
- Date of manufacture
- 12 March 1985
- Forty year point
- 13 March 2025, the day after the fortieth anniversary
- Checked on
- 10 September 2026
- The age test is met. The vehicle is more than 40 years from manufacture.
- If no substantial change has been made in the last 30 years, and the keeper can confirm that, the vehicle meets the historic MOT exemption criteria.
- If a later engine swap changed the technical characteristics of the engine and was not an original-equipment or same-basic-engine alternative, that is a substantial change and an MOT is still required.
Unchanged, the 12 March 1985 car can be declared MOT exempt on form V112 when it is taxed. With a substantial engine swap in the last 30 years, it still needs a current MOT.
What counts as a substantial change?
A vehicle alteration is a substantial change if the technical characteristics of the main components have changed in the previous 30 years, unless the change falls into the acceptable alterations category. For vehicles other than motorcycles the main components are the chassis or frame, the monocoque bodyshell including any sub-frames, the axles and running gear, and the engine.
- For most vehicles the main components are the chassis or frame, monocoque bodyshell, axles and running gear, and engine.
- A replacement chassis, frame or monocoque of the same pattern as the original is not treated as a substantial change.
- Alternative cubic capacities of the same basic engine, and alternative original equipment engines, are not treated as substantial changes.
- Alteration of the type or method of suspension and steering is a substantial change.
- Changes made to preserve a vehicle because original type parts are no longer reasonably available can be acceptable.
- Changes demonstrated to have been made while the type was in production, or within 10 years after production ended, can be acceptable.
- Axles and running gear changed to improve efficiency, safety or environmental performance can be acceptable.
- Changes made to a former commercial vehicle, if you can prove they were made while it was used commercially, can be acceptable.
Do Q plates, kit cars and reconstructed classics still need a test?
Yes, unless a further test is also met. The guidance says your vehicle must have an MOT if it has been substantially changed, is a large vehicle being used commercially, has a registration number with a Q prefix, is a kit car constructed from components from different makes or models, is a kit conversion where a kit body, chassis or monocoque is added to an existing vehicle or vice versa, or is a reconstructed classic vehicle as defined by DVLA.
There is one published exception to that list. If a vehicle meeting one or more of those criteria is taxed as a historic vehicle, and it has not been modified during the previous 30 years, it is exempt from needing an MOT. Historic tax class plus an unmodified 30 years is the combination. Historic tax class alone is not.
How do I declare exemption on form V112?
You declare the exemption when you apply to tax the vehicle. For cars the form is V112, the declaration of exemption from MOT. For large vehicles the form is V112G. The exemption is not written onto the record just because the vehicle has had a birthday. Keep a copy of what you declared. If you later make a substantial change, the vehicle needs an MOT again and DVLA has to be told of changes that affect the V5C, such as replacing the engine.
- Confirm the manufacture or first registration date is more than 40 years ago.
- Confirm, from the published component list, that the vehicle has not been substantially changed in the last 30 years. If you cannot confirm that, stop and book a test.
- Download form V112 for a car, or V112G for a large vehicle, from GOV.UK.
- Declare the exemption when you tax the vehicle. You must tax it even if the amount due is £0.
- Keep the vehicle roadworthy. Book a voluntary MOT if you want an independent check.
Is historic tax exemption the same 40 year rule?
No. Do not merge the two. Historic vehicle tax for the year starting 1 April 2026 uses a 1 April rolling cut off: a vehicle built before 1 January 1986 can apply from 1 April 2026. If the build date is not known, DVLA accepts a first registration before 8 January 1986. The cut off then advances by one year each 1 April.
MOT exemption is not tied to 1 April. It runs from the manufacture or first registration date, and the calculator treats exemption as starting the day after the fortieth anniversary so that nobody is told they are exempt a day early. A car built on 12 June 1986 can reach the MOT age test in June 2026 while still waiting until 1 April 2027 for the historic tax class.
Example
The same 1986 build date, two different clocks
- Date of manufacture
- 12 June 1986
- MOT 40 year point
- 13 June 2026
- Historic tax class
- From 1 April 2027, because it was built during 1986
- MOT exemption asks whether the vehicle is more than 40 years from build or first registration, then whether it has been substantially changed.
- Historic tax exemption asks whether it was built before 1 January of the year 40 years before the current 1 April.
- Passing one test does not grant the other. Each has its own application.
From 13 June 2026 the unchanged car can be declared MOT exempt. It cannot enter the historic tax class until 1 April 2027.
What about large vehicles, buses and Northern Ireland?
Some large vehicles have extra testing rules. Large goods vehicles over 3.5 tonnes and buses or public service vehicles with 8 or more passenger seats which are used commercially require a valid MOT if the vehicle has been substantially changed in the last 30 years, or if it is a large goods vehicle used when laden or towing a laden trailer. Buses and other public service vehicles used commercially are exempt if they are pre-1960 vehicles, unless substantially changed. Buses that are not public service vehicles and are over 40 years old are exempt if they meet the vehicle of historical interest definition.
Large goods vehicles that have not been substantially changed are exempt from testing if they were first used before 1960 and are currently used unladen. A small number of pre-1960 large goods vehicles may still require testing. Steam powered vehicles are exempt from testing. This page does not replace the large-vehicle forms: V112G is the declaration for those keepers.
The calculator assesses the Great Britain historic vehicle MOT exemption. Northern Ireland has a separate testing system. In Great Britain a car, van or motorcycle needs its first MOT by the third anniversary of first registration. In Northern Ireland cars and motorcycles are tested from four years old.
What if the vehicle still needs an MOT?
There is no grace period. From the day after an MOT expires the vehicle cannot legally be used or parked on a public road, and you can be fined up to £1,000 for driving without a valid one. Two exceptions let you drive on an expired MOT: to a test you have already booked, and to or from somewhere for repairs.
A garage may charge up to £54.85 for a class 4 car MOT. That is the statutory maximum, unchanged since April 2010, not a typical price. A voluntary MOT remains available after a valid historic exemption if you want the independent check. The exemption removes the annual test requirement. It does not certify the vehicle as roadworthy.
Does MOT exemption prove the vehicle is roadworthy?
- It does not certify the vehicle as roadworthy. The legal roadworthiness duty continues every day it is used.
- It does not apply automatically to every old vehicle. Some large commercial vehicles and vehicles with unusual registration histories have additional rules.
- It does not make the tax decision. Historic vehicle tax has a separate 1 April cut off and an application process.
- It does not prevent a voluntary MOT. An owner can still have the vehicle tested.
Common questions
- When does a vehicle become MOT exempt?
- The statutory age test is reached 40 years after manufacture or first registration. The vehicle must also meet the historic interest criteria and must not have been substantially changed in the last 30 years. Department for Transport guidance, checked as of 19 May 2026, says you declare the exemption when you tax the vehicle. Age alone is not enough. If you cannot confirm that the vehicle has not been substantially changed, you must not claim MOT exemption. The vehicle must still be roadworthy every day it is used.
- What counts as a substantial change?
- It is a change to the technical characteristics of main components in the last 30 years. For vehicles other than motorcycles the main components are the chassis or frame, the monocoque bodyshell, the axles and running gear, and the engine. A replacement chassis, frame or monocoque of the same pattern as the original is not a substantial change. Alternative cubic capacities of the same basic engine, and alternative original equipment engines, are not either. Changing the type or method of suspension and steering is a substantial change.
- What if I cannot confirm that the vehicle is unchanged?
- Do not claim the exemption. The Department for Transport guidance says that if you cannot confirm the vehicle has not been substantially changed, you must not declare it MOT exempt. Keep it in the annual test. A class 4 car MOT cannot cost more than £54.85, which is the statutory maximum rather than a typical garage price. A voluntary MOT remains available even after a valid exemption, and is the route when the history is incomplete.
- Does an MOT exempt vehicle still have to be roadworthy?
- Yes. Exemption removes the annual test requirement, not the duty to keep the vehicle roadworthy. You can still book a voluntary MOT if you want an independent check. Using an unroadworthy vehicle on a public road is a separate offence from driving without a test certificate. The historic MOT rules also do not change insurance, and they do not put the vehicle into the historic tax class. That class has its own 1 April rolling cut off and its own application.
- Is historic MOT exemption the same as historic tax?
- No. MOT exemption is a rolling 40 year test from the manufacture or first registration date, plus the substantial change rules. Historic vehicle tax for 2026/27 uses a 1 April cut off: a vehicle built before 1 January 1986 can apply from 1 April 2026. If the build date is unknown, DVLA accepts a first registration before 8 January 1986. A car can meet one test and miss the other. You must still tax an MOT-exempt vehicle, even when the amount due is £0, and you must still apply for the historic tax class rather than assuming it.
- Do Q plated cars, kit cars and reconstructed classics need an MOT?
- Yes, as a starting point. Department for Transport guidance says a vehicle still needs an MOT if it has a Q prefix, is a kit car constructed from components from different makes or models, is a kit conversion, or is a reconstructed classic as defined by DVLA. The same list includes a substantially changed vehicle and a large vehicle being used commercially. There is a narrow way out: if a vehicle on that list is taxed as a historic vehicle, and it has not been modified during the previous 30 years, it is exempt from needing an MOT.
- How do I declare the exemption?
- Complete the relevant form when you tax the vehicle. V112 is the declaration for cars. V112G is the declaration for large vehicles. Department for Transport guidance says you will need to declare that the vehicle is exempt from the requirement for an MOT when you apply to tax it, and you must tax it even if you do not have to pay. The exemption is not automatic on the vehicle's birthday. Northern Ireland has a separate testing system; the calculator on this page assesses the Great Britain criteria only.
- Is there a grace period after an MOT expires?
- No. From the day after an MOT expires the vehicle cannot legally be used or parked on a public road, and you can be fined up to £1,000 for driving without a valid one. Two exceptions let you drive on an expired MOT: to a test you have already booked, and to or from somewhere for repairs. Those exceptions are for vehicles that still need a test. An exempt historic vehicle that has been declared on V112 does not need a current certificate, but it still has to be roadworthy. A first MOT in Great Britain is due by the third anniversary of first registration; in Northern Ireland cars and motorcycles are tested from four years old.
Sources
- Department for Transport, Historic vehicle MOT exemption criteria (as of 19 May 2026)
- legislation.gov.uk, Motor Vehicles (Tests) (Amendment) Regulations 2017, regulation 7 (as of 20 May 2018)
- GOV.UK, Historic vehicle tax exemption (as of 7 September 2026)
- DVLA, Declaration of exemption from MOT (V112) (as of 10 September 2026)
- DVLA, Exemption from heavy goods vehicle annual testing (V112G) (as of 10 September 2026)
- GOV.UK, Reconstructed classic vehicles (as of 10 September 2026)
- GOV.UK, Getting an MOT: when to get an MOT (as of 30 July 2026)
- GOV.UK, Getting an MOT: retest after a repair (as of 30 July 2026)
- DVSA, MOT testing guide for test stations: L. Accounts and fees (as of 30 July 2026)
- GOV.UK, Getting an MOT: if your vehicle does not have an MOT (as of 30 July 2026)
- nidirect, How the MOT scheme works (as of 30 July 2026)
- GOV.UK, Getting an MOT: MOT test fees (as of 6 April 2010)
- legislation.gov.uk, The Motor Vehicles (Tests) (Amendment) Regulations 2010 (SI 2010/449) (as of 6 April 2010)