How Much Does an Accountant Cost for a Taxi Driver in the UK 2026/27?

The short answer: what a taxi driver pays for an accountant

A UK taxi driver pays somewhere between £150 and £900 a year for an accountant, and where you land in that range depends almost entirely on how much of the work you hand over. At the bottom sits a once-a-year Self Assessment return where you bring a shoebox of receipts and they fill in the form. At the top sits a managed service that keeps your records all year, picks the right expense method, and handles the new quarterly filing.

For most single-vehicle drivers, the realistic figure is in the middle. A driver who keeps a tidy mileage log and a folder of operator statements can be served for a few hundred pounds a year. A busier driver grossing over £50,000, or one running two cars and a relief driver, needs more bookkeeping and lands higher. None of those numbers are exotic. They track the amount of work, not a premium for the word "specialist".

Taxi and private hire work is one of our transport niches, so the cost question comes up on almost every first call. If you want the wider picture of how we price transport clients, our transport accountants page sets out the service tiers, and Self Assessment and personal tax covers the return itself. The point of this guide is to show you what sits behind the fee so you can judge whether the cheap option is genuinely cheaper once your tax is settled.

What you actually get for the fee

A taxi driver accountant fee covers four things: preparing and filing your Self Assessment return, working out the most tax-efficient way to claim your vehicle and running costs, keeping your records straight enough to survive an HMRC check, and being on hand when something changes. The gap between a £150 return and a £695 managed service is how much of that happens, and how well.

At the cheap end you get a return filled in from whatever you hand over. If your figures are wrong, they go in wrong. There is rarely any review of whether you picked the better expense method, and almost never a check on whether a missed cost like ULEZ, plating or a licence renewal slipped through. You also carry the record-keeping risk yourself.

A managed service flips that around. The bookkeeping is done through the year so the numbers are right before they reach the return. Someone actively chooses between mileage and actual costs, captures the operator commission Uber or Bolt deducts, and flags when your turnover is heading toward a threshold. For a driver who would rather be earning than wrestling a spreadsheet at midnight in January, that is usually where the money is well spent.

Mileage or actual costs: the choice that moves your bill the most

The single biggest lever on a taxi driver's tax bill is how you claim the car, and getting it wrong is the most common reason a cheap return costs you money. You have two methods, and you cannot mix them on the same vehicle.

The simplified mileage method lets you claim a flat rate per business mile that covers fuel, insurance, servicing, repairs and depreciation in one figure. From 6 April 2026 that rate rose from 45p to 55p per mile for the first 10,000 business miles in the year, then 25p per mile after that, confirmed in HMRC's mileage rate guidance. It is simple and it suits a driver with a fuel-efficient car and high private-hire mileage. One catch: a purpose-built black cab is treated as a commercial vehicle and is not eligible for simplified mileage, so hackney drivers use actual costs instead. A regular saloon used for private hire can use either.

The actual-cost method claims your real running costs, fuel, insurance, road tax, MOT, servicing, repairs and tyres, apportioned by the business-use percentage of the car, plus capital allowances on the vehicle itself. It usually wins for an older or thirstier car, a high-value vehicle, or anyone doing heavy annual mileage where real costs outrun the flat rate. The trade-off is more record-keeping.

Two rules trip people up. Once you choose simplified mileage for a vehicle you must keep using it for that vehicle for as long as you use it in the business, so you cannot flip year to year to whichever looks better. And if you use simplified mileage you cannot also claim capital allowances on that car, because the flat rate already includes depreciation. That capital allowances point is the same trap that catches drivers buying bigger vehicles, which we cover in our guide to why a truck gets full tax relief but a car does not.

Whichever method you use, you can still claim costs the flat rate never covered: ULEZ and congestion charge, parking and tolls, your taxi or private hire licence, vehicle plating, the operator or circuit fee, radio rent, your phone, and public liability or hire-and-reward insurance. Those are exactly the lines a once-a-year return tends to miss.

When VAT and Making Tax Digital change the price

Two thresholds decide whether your accountancy is a simple annual job or a year-round one, and both can quietly raise what you should pay. The first is VAT. The second is Making Tax Digital.

You only charge VAT on fares if you are VAT registered, which becomes compulsory once your taxable turnover passes £90,000 in any rolling 12 months. Most single drivers never reach that. The trap is how you measure it: you must count the full fare the passenger pays, before the operator deducts radio rent, circuit fees or commission, not just the money that lands in your account. A driver who thinks they are at £80,000 net can already be over the line on gross fares. The detail sits in HMRC VAT Notice 700/25 on taxis and private hire. In London, private hire operators are required to act as principal, so the operator accounts for VAT on the journey itself, which changes the picture again.

The bigger near-term change is Making Tax Digital for Income Tax, which means keeping digital records and sending HMRC a quarterly update instead of one annual return. It became mandatory from 6 April 2026 for sole traders and landlords with gross income above £50,000, drops to £30,000 from April 2027, and to £20,000 from April 2028. It is based on gross turnover, not profit, so a busy driver on thin margins can be caught even while take-home pay looks modest. If you are in scope, four quarterly submissions plus a year-end finalisation is simply more work than one return, which is exactly why a managed monthly plan, not a once-a-year fee, becomes the sensible option. Sole traders weighing whether the structure still fits can also look at our breakdown of accountant costs for a lorry driver, where the same thresholds apply.

DIY, generic accountant or specialist: which is right for you?

Pick by your turnover and how complicated your year is, not by the headline fee. The cheapest option only wins if your tax position is genuinely simple, and for a lot of drivers it is not.

DIY suits a part-time or new driver, low mileage, well under the VAT and Making Tax Digital thresholds, one car, simplified mileage, and the patience to keep records. If that is you, free or low-cost software and an annual return are reasonable, and an accountant may add little.

A generic accountant suits a steady full-time driver with a straightforward setup who just wants the return done right and off their plate. It works, as long as you check they will actually test your expense method and ask about operator commission rather than just typing in your numbers.

A specialist suits anyone busier or more complex: high mileage where the method choice genuinely matters, gross fares anywhere near £90,000, gross income over £50,000 so Making Tax Digital applies, more than one vehicle, or a relief driver on the books. At that point the bookkeeping, the threshold monitoring and the quarterly filing are real work, and a fixed monthly fee that includes them usually costs less than the tax and penalties a thinner service lets through.

What this means for you

Start by being honest about which of those three you are, then act on the parts that are time sensitive.

1. Check your gross fares, not your take-home. Add back everything the operator deducts. If the full figure is near £50,000 you are heading into Making Tax Digital, and near £90,000 you are heading into VAT.
2. Work out your real cost per mile. If your car is older, thirsty or high-value, actual costs may now beat even the new 55p rate. If it is efficient and you do high mileage, simplified mileage may win. Do not assume last year's choice still holds.
3. List the costs you have been missing. ULEZ, congestion charge, licence and plating renewals, operator commission, radio rent, phone and hire-and-reward insurance all count and are routinely left off DIY returns.
4. Decide before the deadline, not on 30 January. If Making Tax Digital applies to you, the first quarterly update is due during the year, so a once-a-year scramble no longer works.
5. Get a fixed quote in writing. A good accountant will scope your situation and tell you the number upfront, so you are comparing like for like rather than an hourly rate that drifts.

The fee is the easy part to see. The expensive part is the tax you overpay, or the penalty you trigger, when the cheaper option quietly misses something. Price the whole picture, not just the invoice.