Mileage Tracking

Accurate mileage tracking forms the foundation of tax efficiency for Uber drivers, where proper documentation of business versus personal miles directly impacts allowable deductions. The 45p per mile allowance for the first 10,000 business miles provides substantial tax relief but requires meticulous record-keeping to satisfy HMRC.

Many drivers accumulate high annual mileage, triggering the reduced 25p rate after 10,000 miles. Proper tracking systems help identify the optimal transition point while ensuring every legitimate business mile is captured and categorised correctly.

HMRC requires detailed logs showing dates, destinations, mileage, and business purposes for each journey. Generic tracking often fails to distinguish between business and personal miles, which can result in denied deductions during enquiries.

HMRC's published guidance on mileage records requires for each business journey: date, start point, destination, business purpose, and miles. The standard for 'business purpose' on Uber driving is straightforward - 'collecting passenger from X to Y' is sufficient where individual ride records exist on the Uber app's trip history. The complication is the deadhead miles between passenger drop-off and the next passenger pickup or repositioning to a busier zone. These count as business miles under HMRC's interpretation because they're necessarily incurred to maintain the trade, but they don't appear on Uber's app log directly - they have to be reconstructed from GPS data or a tracking app's continuous logging. Drivers who only count fare-bearing miles (as Uber's app shows) materially under-claim. Tracking apps that capture all driving time and let the driver flag business segments cover the gap.

Vehicle ownership structure affects which mileage method works best. Owned vehicles with high purchase prices benefit from the actual costs method including capital allowances - the £20-30k purchase of an EV or hybrid claimed as 100% first-year allowance under the EV provisions can wipe out a year of taxable income. Leased vehicles can claim actual lease costs plus running costs, where the lease premium typically beats the simplified rate for higher-value cars. Older or lower-value owned vehicles usually beat the alternatives with simplified 45p/25p mileage. The accountant runs the comparison annually so the method matches the vehicle's economics each year - and once chosen for a vehicle, the method has to be retained until the vehicle is changed.

Personal-use carving is where most drivers either over-claim (counting commute and family trips as business) or under-claim (worrying about claiming legitimate business journeys). The principle is simple: any journey that has a business purpose is business mileage even if it has incidental personal benefit. Driving home from a dropped-off passenger is business. Driving to the dealership to collect tyres is business. Driving the kids to school in your work vehicle is personal. Tracking apps that auto-flag based on time-of-day patterns plus location-of-frequent-stops typically get the categorisation 95%+ correct, with manual overrides for the edge cases.

Multi-vehicle households need separate mileage records per vehicle because the simplified mileage rates apply per car, and capital allowances under actual costs are vehicle-specific. A driver who alternates between a personal car and a dedicated work car needs to track each independently, and the 10,000 mile threshold for the higher rate applies per vehicle, not per driver. Drivers who switched vehicles mid-year (sold old car, bought new one) reset the threshold count for the new vehicle from purchase date. Getting this wrong costs hundreds of pounds in claimed mileage relief.

Drivers using personally-owned vehicles for both Uber driving and personal use need to apportion not just mileage but also fixed costs if they're using the actual costs method. Insurance, road tax, and MOT are split based on the business-use percentage of total annual mileage. Repairs and consumables (tyres, brake pads) can sometimes be apportioned based on which set of journeys necessitated them, but for most drivers a percentage-based apportionment is simpler and HMRC-acceptable. The accountant sets the apportionment percentage at engagement based on current usage and reviews it annually - a driver who increases driving hours mid-year sees the apportionment shift to a higher business-use share for the cost claims.

Lease vehicles have specific HMRC restrictions on the lease cost claim. For cars with CO2 emissions over 110g/km, the lease cost is restricted to 85% (a 15% disallowance). For cars over 130g/km the restriction is 50%. EV and ULEV cars have no restriction. The lease-cost-restriction interacts with the simplified mileage method - drivers claiming simplified 45p/25p don't apply the lease restriction (because the rate already incorporates depreciation), but actual-cost drivers must apply the restriction. Get this wrong and HMRC will adjust on enquiry.

Drivers operating through a limited company (more common at higher income levels for tax efficiency) have different mileage rules. The company can pay HMRC's approved mileage rates (45p/25p) tax-free to the director-driver, OR the company can own the vehicle and claim actual costs - but not both for the same vehicle in the same period. Director-owned vehicles claimed back via mileage are simpler administratively. Company-owned vehicles trigger Benefit-in-Kind charges on private use, which for higher-emission cars can wipe out the tax saving entirely. The accountant runs the company-vs-personal-vehicle calculation when limited company structures are being considered.