If you drive in London or are thinking about buying a car that will be used in the capital, the Ultra Low Emission Zone is something you need to understand. ULEZ is a daily charge that applies to vehicles that do not meet certain emissions standards, and since its expansion in August 2023 it now covers all of Greater London.

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That means millions of drivers are affected every day, and driving a non-compliant vehicle without paying can result in a significant fine. In this guide, we explain exactly how ULEZ works, who it applies to, and what your options are.

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What Is ULEZ?

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ULEZ stands for Ultra Low Emission Zone. It is a scheme run by Transport for London (TfL) that charges drivers of older, more polluting vehicles a daily fee to drive within a defined area. The aim is to reduce harmful air pollution across London.

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The scheme was first introduced in central London in April 2019, covering the same area as the Congestion Charge zone. In October 2021, it was expanded to cover the area within the North and South Circular roads. Then on 29 August 2023, it was expanded again to cover all of Greater London - from the centre right out to the outer boroughs. The boundary now runs up to but does not include the M25 motorway itself.

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ULEZ operates 24 hours a day, 7 days a week, 365 days a year. There are no off-peak hours or free periods. If your vehicle does not meet the required emissions standard and you drive it anywhere within Greater London, you are liable for the daily charge every time you do so.

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How Much Does ULEZ Cost?

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The ULEZ daily charge is currently £12.50 for cars, motorcycles, and vans. This is a flat rate per day - it does not matter whether you drive one mile or 50 miles within the zone, or whether you enter and leave multiple times in the same day. You only pay once per 24-hour period, which runs from midnight to midnight.

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If you drive a non-compliant vehicle and do not pay the charge, you will receive a Penalty Charge Notice (PCN) of £180. This is reduced to £90 if you pay within 14 days. TfL enforces the scheme using automatic number plate recognition (ANPR) cameras positioned across London, and the system is highly effective - the vast majority of penalty notices are issued to repeat offenders, with TfL recovering over £16.5 million in unpaid fines in the first half of 2025 alone.

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It is important to note that ULEZ is a separate charge from the London Congestion Charge. The Congestion Charge applies only to a much smaller area in central London during specific hours and currently costs £18 per day. If you drive a non-compliant vehicle through central London during Congestion Charge hours, you could end up paying both the £12.50 ULEZ charge and the £18 Congestion Charge in the same day - a total of £30.50.

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Which Vehicles Are Affected?

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Whether your vehicle is affected by ULEZ depends on its emissions standard, not its age. The key thresholds are Euro 4 for petrol vehicles and Euro 6 for diesel vehicles. If your car meets or exceeds these standards, it is ULEZ compliant and you can drive in London without paying the charge.

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In practice, most petrol cars registered after January 2006 meet the Euro 4 standard, and most diesel cars registered after September 2015 meet Euro 6. However, these are rough guidelines rather than hard rules - some manufacturers adopted the newer standards earlier than required, and some models registered close to those dates may fall either side of the line. The only way to be certain is to check your specific vehicle.

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Fully electric vehicles are completely exempt from ULEZ and do not need to pay anything. Plug-in hybrids are also generally exempt, provided they meet the relevant Euro standard on their petrol or diesel engine. Motorcycles and mopeds must meet Euro 3, which typically means those registered after July 2007. Vans and minibuses up to 3.5 tonnes follow the same rules as cars - Euro 4 for petrol, Euro 6 for diesel.

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How to Check If Your Car Is ULEZ Compliant

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The quickest way to check is by using TfL's free vehicle checker tool. You enter your vehicle's registration number and it tells you instantly whether your car meets the ULEZ emissions standard. The tool pulls data from the DVLA, so it is accurate down to the specific engine, fuel type, and Euro standard of your exact vehicle.

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There are also several third-party ULEZ checker tools available online, but the TfL tool is the most reliable because it draws directly from official records. If you are buying a used car and want to check before you commit, you can run the registration through the checker before completing the purchase. This is especially worth doing for diesel cars registered between 2013 and 2016, as some may fall just below the Euro 6 threshold depending on the exact model and engine variant.

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You can also check your car's Euro emissions standard on the V5C registration document (logbook). The emissions class is listed in Section D.2. If it says Euro 4 or above for petrol, or Euro 6 or above for diesel, you are compliant. If you do not have the V5C to hand, the DVLA's free vehicle enquiry service at gov.uk will show your vehicle's details including its emissions class.

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How to Pay the ULEZ Charge

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If your vehicle is not compliant and you need to drive in London, you can pay the ULEZ charge online through the TfL website, by phone, or through the TfL app. You can pay in advance (up to 90 days before your journey), on the day, or by midnight on the third day after your journey. After that, an unpaid charge becomes a penalty.

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If you drive in London regularly, the most practical option is to set up Auto Pay. You register your vehicle and payment card with TfL, and the system automatically charges you whenever ANPR cameras detect your car in the zone. You are billed monthly and receive a statement showing every charge. Auto Pay holders also get 90 days to dispute any charges, and it removes the risk of accidentally forgetting to pay and getting a fine.

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For occasional visitors, paying as you go through the website or app is straightforward. Just make sure you do it within the three-day window after driving, because the penalty jumps to £180 if you miss it. Setting a phone reminder after you drive in London is a simple way to avoid being caught out.

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Exemptions and Discounts

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Some vehicles are exempt from ULEZ regardless of their emissions standard. Historic vehicles - those built before 1 January 1973 - are fully exempt and do not need to pay or register. Military vehicles are also exempt, as are certain types of agricultural and construction machinery that are not primarily designed for road use.

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All licensed London taxis (black cabs) are currently exempt from ULEZ, although this is subject to review. Vehicles used by disabled people who hold a disabled tax class, a disabled passenger vehicle tax class, or a valid disabled person's badge may also be exempt - but this depends on the specific circumstances, so it is worth checking with TfL directly.

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There is also a grace period for residents. If you live within Greater London and your vehicle is non-compliant, there was originally a sunset period where residents received a discount. That discount has now ended, and all drivers - residents and visitors alike - pay the same £12.50 daily charge. The scrappage scheme that previously offered grants of up to £2,000 to help Londoners replace non-compliant cars closed in September 2024, with final payments made by July 2025.

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ULEZ and Electric Vehicles

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Fully electric vehicles are completely exempt from ULEZ charges and are likely to remain so for the foreseeable future. If you drive an electric car, you can drive anywhere in Greater London at any time without paying the ULEZ charge. This is one of the most straightforward financial benefits of going electric if you regularly drive in the capital.

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However, it is important not to confuse ULEZ with the Congestion Charge - they are separate schemes. From January 2026, electric vehicles lost their full exemption from the Congestion Charge in central London. EVs registered with Auto Pay now pay a reduced rate of £13.50 per day (a 25 per cent discount on the standard £18 charge) when driving in the Congestion Charge zone during charging hours. This discount is set to reduce to 12.5 per cent from March 2030.

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So while an electric car means you never pay ULEZ anywhere in London, you will now pay a reduced Congestion Charge if you drive through the very centre of the city during operating hours. For most London drivers who stay outside the small central zone, this change makes no practical difference - ULEZ exemption is the one that matters day to day, and that remains in place for EVs.

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What Are Your Options If Your Car Is Not Compliant?

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If your car does not meet the ULEZ standard, you have several options. The first is simply to pay the daily charge whenever you drive in London. At £12.50 per day, this adds up quickly if you drive regularly - five days a week would cost you £62.50 a week or around £270 a month. For occasional visits it may be manageable, but for daily use it becomes a significant ongoing expense.

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The second option is to replace your vehicle with one that meets the standard. As outlined above, any petrol car from roughly 2006 onwards and any diesel from roughly 2015 onwards should be compliant. If you are buying a used car specifically to avoid ULEZ charges, always check the exact vehicle's compliance before purchasing - do not rely on the year alone. Electric and hybrid vehicles are the safest long-term choice, as they are fully exempt from ULEZ and are likely to remain so.

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The third option, if your journeys allow it, is to use public transport for trips within London and keep your non-compliant car for driving outside the zone. London's public transport network is extensive and often faster than driving in the city anyway. Some drivers also choose to park outside the ULEZ boundary and take the Tube or bus for the last stretch of their journey, although this is becoming less practical now that the zone covers all of Greater London.

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ULEZ vs Clean Air Zones in Other UK Cities

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London's ULEZ is the largest and most established low emission zone in the UK, but it is not the only one. Several other cities have introduced or are planning their own Clean Air Zones (CAZs), including Birmingham, Bath, Bradford, Bristol, and Sheffield. The rules and charges vary between cities - Birmingham's CAZ, for example, charges £8 per day for non-compliant cars, while Bath charges £9.

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The emissions standards used to determine compliance are broadly similar across all schemes - Euro 4 for petrol and Euro 6 for diesel - but the specific boundaries, operating hours, and exemptions differ from city to city. If you drive regularly between different UK cities, it is worth checking each city's individual scheme to understand where charges apply. The good news is that if your car meets ULEZ standards in London, it will almost certainly be compliant in other UK Clean Air Zones too, since the underlying emissions thresholds are the same.

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It is also worth being aware that more cities may introduce Clean Air Zones in the coming years as part of the UK government's broader strategy to reduce air pollution. Buying a compliant vehicle now protects you not just against London's ULEZ charge but against any future low emission zones that may be introduced elsewhere in the country.

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Conclusion

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ULEZ is now a fact of life for anyone who drives in London. The zone covers all of Greater London, operates around the clock, and charges £12.50 per day for any vehicle that does not meet the required emissions standard. If you drive in the capital regularly, understanding whether your car is compliant - and what your options are if it is not - can save you a significant amount of money over the course of a year.

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The simplest step you can take right now is to check your vehicle using TfL's free online tool. If your car is compliant, you have nothing to worry about. If it is not, you can weigh up the cost of paying the daily charge against the cost of switching to a compliant vehicle. Either way, knowing where you stand is the first step to making a smart decision.

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The information in this guide is accurate as of June 2026. ULEZ rules, charges, and exemptions are set by Transport for London and may change. For the most up-to-date information, visit tfl.gov.uk.

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