ULEZ checker: How Do I Check If My Car Is ULEZ Compliant?
A ULEZ checker takes seconds. 50 daily charge inside London's Ultra Low Emission Zone.
No payment, no account and no personal details required.
Key facts
What Is the ULEZ Checker and How Does It Work?
The ULEZ checker is a free online tool provided by Transport for London that matches your vehicle registration to DVLA emissions data. It shows whether your car meets Euro 4 (petrol) or Euro 6 (diesel) standards — the thresholds that determine the daily charge.
Most petrol cars from 2006 onward and diesel cars from September 2015 onward pass automatically. Older vehicles with retrofitted catalytic converters may also comply if the modification is recorded on the V5C logbook.
The tool pulls live data from the national vehicle register. If you have recently fitted a compliant engine or converter, update your V5C first — the checker reads only what the DVLA holds on file.
Results appear within two seconds of entering your number plate, with a clear yes or no answer and a brief explanation of the emissions standard your vehicle meets or fails.
Tip: Check the night before a planned trip — discovering non-compliance at a Tube station car park entrance leaves you little time to pay or reroute.
How Much Does It Cost to Use the Official Checker?
The TfL vehicle compliance checker is completely free. uk ULEZ page, enter your registration, and the result appears with no payment, login or personal details required.
50 per day, rising to £100 if not paid within three days. Vehicles registered with TfL Auto Pay are charged automatically via the card on file, removing the risk of a late penalty.
Setting up Auto Pay is also free and takes roughly three minutes online.
Manual payments can be made up to three days in advance or by midnight three days after the journey. Missing that window triggers the £100 penalty charge notice, which increases to £160 if unpaid for a further 14 days.
| Payment method | Cost per day | Payment window | Late penalty |
|---|---|---|---|
| Auto Pay (card) | £12.50 | Automatic | None (charged on file) |
| Online (manual) | £12.50 | 3 days before to 3 days after | £100 |
| Phone (manual) | £12.50 | 3 days before to 3 days after | £100 |
| Post (manual) | £12.50 | 3 days before to 3 days after | £100 |
Where Do I Find the ULEZ Checker Online?
uk/ulez — search "TfL ULEZ checker" or navigate to the Transport for London homepage and follow the ULEZ link. Third-party sites sometimes offer similar tools, but only the TfL version draws directly from DVLA records and reflects the same database used by enforcement cameras.
Bookmark the page if you switch vehicles regularly or share a household car.
Valetly provides a free companion tool that adds London-specific context to the official result, explaining what the charge means for regular commuters and school-run drivers.
You can also call TfL's contact centre on 0343 222 2222 (Monday to Friday, 08:00–20:00) and provide your registration over the phone. The advisor reads the result from the same database, though the online checker is faster and available around the clock.
Avoid sites that ask for payment card details before showing results — the official service never charges.
Warning: Enforcement cameras photograph every number plate entering the zone — checking after you drive does not cancel the charge.
What Happens If My Car Fails the Check?
50 charge each day it enters the expanded zone. You have three options: pay the daily fee, avoid driving inside the zone boundaries, or replace the vehicle with a compliant model.
The zone covers every street in Greater London, including residential roads. Even a short trip from your home in Zones 4, 5 or 6 triggers the charge if you cross into the area.
If you need the car for work or school runs, set up Auto Pay to avoid manual tracking. 50 or more.
For cars worth upgrading, fitting a compliant engine or exhaust system and updating the V5C can change your status, though retrofitting older vehicles often costs more than the residual value.
Key figure: The zone added roughly 5 million residents when it expanded in August 2023, turning local errands into chargeable journeys for drivers in outer boroughs.
How Often Should I Check My Vehicle Status?
Check whenever you acquire a different vehicle, even temporarily. Hire cars, courtesy cars from a garage, borrowed family vehicles and company pool cars may not meet the standard, and the driver on the day is liable for the charge.
If you buy a used car, check before the first London trip. The previous owner's compliance does not transfer; the registration determines the fee.
Re-check after any engine modification or emissions work recorded with the DVLA, as the update can take several weeks to reach TfL's system. If you drive into London fewer than three times per month, checking the night before each trip keeps you compliant without setting up recurring payments.
For daily commuters, one check when you first get the car is enough, provided nothing changes on the V5C.
Does the ULEZ Checker Show MOT or Tax Status?
No — the TfL tool displays only emissions compliance. UK MOT checker, which shows pass and fail records, mileage at each test and advisory notes.
UK check vehicle tax page and enter the same registration — it confirms whether tax is current and when it expires.
These are separate systems: a car can hold valid tax and MOT but still fail the emissions standard that determines the daily charge. The three checks address different legal requirements, and all three are free government services requiring only your number plate.
Valetly does not carry out MOT tests, tax renewals or mechanical work — those remain between you, a garage and the DVLA.
UK](/blog/mot-checker-uk-how-to-check-mot-status). For vehicle tax, read [Is My Car Taxed?
UK](/blog/is-my-car-taxed-check-vehicle-tax-status).
How Mobile Valeting Fits a Charged Zone
Once your car is inside the ULEZ boundary, every discretionary journey carries a price tag — including the drive to a high-street wash bay. 50 to the cost of the wash.
For drivers in Zones 3 to 6 who now live inside the expanded area, keeping the car clean without adding to the daily charge total makes mobile service the cheaper option over time.
Book a valet who comes into the zone and the appointment happens at your address, with no second charge-day triggered by a trip to a forecourt.
Valetly connects London drivers with vetted, insured independent mobile valets across all 32 boroughs, covering the entire expanded zone and the M25 commuter belt. Fixed prices start at £75, shown upfront at booking, and the valet brings all equipment to your door.
Each valet is ID-checked, insured to at least £1 million public liability and brings their own equipment. You receive before and after photos on every job, and if something is missed, Valetly arranges a free re-clean.
Frequently Asked Questions
**
Yes — enter any vehicle registration and the tool returns the emissions status for that class. 50 daily charge if non-compliant, and the same Euro 4 (petrol) or Euro 6 (diesel) standards apply.
5 tonnes are subject to separate Low Emission Zone rules, checked via a different TfL page.
**
Yes — the checker requires only a registration number, with no proof of ownership. This lets you verify a hire car, a vehicle you are considering buying or a company pool car before driving it into London.
The result is public information drawn from DVLA records, so no privacy rules prevent the check.
**
Contact TfL on 0343 222 2222 with your V5C logbook and any evidence of recent emissions work. If the DVLA record is incorrect, submit a V5C amendment and allow two to four weeks for the databases to sync.
Do not drive into the zone until the online checker updates. Enforcement cameras read the same file, and a penalty will issue even if you hold paper proof of compliance.
**
Blue boundary signs reading "You are entering the Ultra Low Emission Zone" mark every entry point. If you see the sign, the charge applies from that moment.
uk showing whether an address sits inside or outside the zone — check before travelling if the route is unclear.
Missing a sign does not cancel the charge; the daily fee is based on camera detection, not intent.
**
No — they are separate fees with separate payment systems. The congestion charge applies only to central London (roughly Zones 1 and parts of Zone 2), costs £15 per day, and runs Monday to Friday plus occasional weekends.
50, operates across all London boroughs 24/7, and depends on your vehicle's emissions.
50 for that calendar day.
Valetly is a London mobile valeting marketplace (company number 17255496) connecting vetted, insured independent valets with drivers across all 32 London boroughs, with fixed prices from £75.
