Birmingham's Clean Air Zone (CAZ) launched on 1 June 2021 and is the UK's first Class D zone outside London. It charges non-compliant cars, taxis, vans, lorries, and buses to drive within the city centre ring road. For car drivers, the charge is £8 per day — and it adds up fast if you commute into the city.
Unlike London's ULEZ which covers an enormous area, Birmingham's CAZ is focused on the city centre. But if you work in Birmingham, visit regularly, or are buying a used car in the West Midlands, understanding the zone is essential to avoiding daily charges that can run into thousands of pounds per year.
This guide covers exactly what the Birmingham CAZ is, which vehicles are affected, how to check compliance, and the exemptions available — including Birmingham's unique financial hardship exemption.
1. What Birmingham's Clean Air Zone Covers
Birmingham operates a Class D Clean Air Zone, which means it charges all non-compliant vehicle types — not just lorries and buses, but also private cars, taxis, and vans.
The zone covers the area within the A4540 Middleway ring road, which forms a loop around Birmingham city centre. The ring road itself is not inside the zone — you can drive along the A4540 without being charged, as long as you don't enter the area inside it.
Key landmarks inside the zone include New Street Station, the Bullring, Broad Street, the Jewellery Quarter, and Aston University. If you're driving into the city centre for work, shopping, or entertainment, you're almost certainly entering the zone.
The zone operates 24 hours a day, 365 days a year. There are no free evenings, weekends, or bank holidays.
2. Daily Charges by Vehicle Type
| Vehicle Type | Daily Charge |
|---|---|
| Cars | £8 |
| Taxis and private hire vehicles | £8 |
| Light goods vehicles (vans) | £8 |
| HGVs, buses, and coaches | £50 |
The charge is per calendar day, not per trip. If you enter the zone multiple times in a single day, you only pay once. But if you drive in on Monday and again on Tuesday, that's two charges.
Over a year, driving a non-compliant car into Birmingham city centre five days a week costs approximately £2,080 in CAZ charges alone.
3. Compliance Standards — Euro 4 Petrol, Euro 6 Diesel
Birmingham uses the same emission standards as London's ULEZ:
- Petrol vehicles: Must meet Euro 4 (generally registered from around 2006 onwards)
- Diesel vehicles: Must meet Euro 6 (generally registered from around September 2015 onwards)
- Electric and hydrogen vehicles: Always compliant
This means that if your car is compliant with London's ULEZ, it's compliant with Birmingham's CAZ too — and vice versa. The standards are identical across all Class D zones in the UK.
4. How to Check Your Vehicle
Birmingham City Council provides a free vehicle checker at brumbreathes.co.uk/vehicle-checker. Enter your registration number and it will tell you instantly whether your vehicle is compliant.
You can also check using the Government's national Clean Air Zone checker at gov.uk/check-clean-air-zone-charge, which covers all UK Clean Air Zones in one place.
On SortedCars, our SortedCheck includes Birmingham CAZ compliance as part of every free vehicle check — so you can verify before you buy.
5. Exemptions
The following vehicles are exempt from Birmingham's CAZ charge:
- Historic vehicles: Vehicles in the historic tax class (generally manufactured before 1 January 1983)
- Disabled tax class: Vehicles registered in the disabled tax class on the V5C
- Military vehicles: Vehicles used for military purposes
- Ultra-low emission vehicles: Electric, hydrogen, and some plug-in hybrids with very low CO2 emissions
Additionally, Birmingham offers temporary exemptions for specific circumstances. These must be applied for through the Brum Breathes website and are assessed on a case-by-case basis.
6. Penalties for Non-Payment
| Penalty | Amount |
|---|---|
| Full PCN (cars, taxis, vans) | £120 |
| If paid within 14 days | £60 |
| Full PCN (HGVs, buses, coaches) | £120 |
| If paid within 14 days | £60 |
The penalty is issued on top of the unpaid daily charge. ANPR cameras throughout the zone detect non-compliant vehicles automatically. You can pay the CAZ charge in advance, on the day, or by the end of the sixth day after driving in the zone.
Check any car for CAZ compliance
SortedCheck includes all UK Clean Air Zone status — free.
7. The Financial Hardship Exemption
Birmingham offers something most other UK Clean Air Zones do not: a financial hardship exemption. If you can demonstrate that you cannot afford to replace your non-compliant vehicle, you can apply for a temporary exemption from the daily charge.
This is designed as a bridge — it gives you time to arrange a compliant vehicle without paying the daily charge in the meantime. The exemption is:
- Temporary — it's granted for a limited period, not permanently
- Means-tested — you'll need to demonstrate your financial circumstances
- Applied for online — through the brumbreathes.co.uk website
If you're on a low income and need to drive into Birmingham city centre regularly, this exemption could save you hundreds of pounds while you save for a compliant car or arrange alternative transport.
8. Impact on Used Car Buying in the West Midlands
The Birmingham CAZ has had a noticeable effect on the used car market across the West Midlands region:
- Non-compliant diesel cars are cheaper: Sellers in Birmingham and surrounding areas often discount non-compliant vehicles to attract buyers outside the zone
- Compliant cars hold value better: Demand from city-centre commuters keeps prices firmer for Euro 6 diesel and Euro 4+ petrol models
- Budget buyers should be cautious: A car that looks like a bargain may be cheap specifically because it can't enter the CAZ without a daily charge
If you live or work in Birmingham, always check CAZ compliance before buying. If you're outside the zone but see a suspiciously cheap car from a Birmingham seller, check why — it may be non-compliant and the seller may be offloading it to avoid the charge.
- Thinking the ring road is inside the zone — The A4540 Middleway is outside the CAZ boundary
- Assuming weekends are free — The CAZ operates 24/7/365
- Confusing it with London's ULEZ charge — Birmingham is £8/day for cars, not £12.50
- Not knowing about the hardship exemption — If you're on a low income, you may qualify for a temporary exemption
- Buying a used car without checking compliance — Always check before you buy, not after
Final Thoughts
Birmingham's Clean Air Zone is smaller than London's ULEZ but still affects thousands of drivers who commute into the city centre daily. At £8 per day, the annual cost for a regular commuter is over £2,000 — money that could go towards a compliant replacement vehicle.
The good news is that the compliance standards are straightforward (Euro 4 petrol, Euro 6 diesel), and checking your vehicle is free and instant. If you're buying a used car in the West Midlands, make CAZ compliance one of your top priorities.
And if you're facing financial hardship, Birmingham's unique exemption scheme could give you breathing room while you arrange a compliant vehicle. Don't pay daily charges if you don't have to.
Information in this article is accurate as of April 2026. Birmingham City Council may update CAZ rules, charges, and exemptions. Always check brumbreathes.co.uk for the latest information.
Related reading: London ULEZ 2026 Guide | How to Avoid Clean Air Zone Charges
Frequently Asked Questions
Find a CAZ-Compliant Car on SortedCars
Browse verified listings and buy with confidence.