Are Congestion Charge and ULEZ Costs Tax-Deductible for the Self-Employed? 2026/27

The General Rule: Business Journeys, Not Commuting

For anyone self-employed and driving into central or inner London, the London Congestion Charge (currently a daily fee for driving within the zone on charging days) and the Ultra Low Emission Zone (ULEZ) daily charge for non-compliant vehicles are both, in principle, deductible business expenses — but only where the underlying journey itself qualifies as business travel.

This follows the same long-standing principle HMRC applies to all self-employed travel: costs of travelling to a temporary workplace, a client site, or for a specific business purpose are deductible, while costs of ordinary commuting between home and one single, regular, permanent place of work are not. The Congestion Charge or ULEZ fee simply attaches to whichever category the underlying journey falls into.

When ULEZ and Congestion Charge Costs Qualify

• A self-employed tradesperson driving into the zone to quote for or carry out a job at a client's premises.
• A delivery or courier driver whose work inherently involves multiple different locations across a working day.
• A consultant or freelancer attending a genuinely occasional client meeting inside the zone (not their own regular office).
• A business owner making a one-off supply run or site visit within the charged area.

In all these cases, the daily charge is treated the same way as fuel, parking or tolls incurred on the same trip — a direct cost of earning the business income, deductible against profit.

When They Don't Qualify

The clearest example is a self-employed person whose only reason for entering the zone is to reach one fixed regular place of work they attend day after day — for example, a sole trader who rents a permanent workshop or office inside the ULEZ boundary and drives there daily. That pattern of travel is treated as ordinary commuting, in the same way an employee's daily commute isn't tax-deductible, regardless of whether the trip happens to attract a Congestion Charge or ULEZ fee.

Why It Doesn't Matter That ULEZ Is About Emissions

A common misconception is that ULEZ charges are somehow different from the Congestion Charge because they're a consequence of driving a non-compliant, more polluting vehicle, as if that makes the cost more like a penalty than a legitimate business expense. Tax law doesn't draw that distinction — the ULEZ daily charge is simply the cost of using that particular vehicle for that particular business journey on that day, deductible on exactly the same basis as the Congestion Charge, regardless of why the fee was triggered. What is not deductible is a penalty charge notice (PCN) issued for failing to pay the charge at all, which is treated as a fine rather than a running cost.

Record-Keeping for Mixed-Use Vehicles

Because many self-employed people use the same vehicle for both business and private journeys, it's worth keeping simple evidence alongside bank or TfL account statements: the date of each charged journey, the business purpose, and ideally the client or job it related to. This is particularly useful given how easy it is, over a full tax year, to lose track of which of dozens of individual daily charges were genuinely business trips versus personal ones.

Employees Are Treated Similarly

Employees who occasionally drive into a charging zone for genuine business trips — not their normal commute — can generally be reimbursed tax-free by their employer for the Congestion Charge or ULEZ fee incurred, following the same business-versus-commuting distinction that applies to mileage and other travel expense reimbursements.