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Bought a taxi? TaxNav explains why drivers do NOT need to calculate vehicle tax relief every three months to HMRC
Taxi and private hire drivers buying vehicles for their businesses do not need to calculate capital allowances every three months when submitting Making Tax Digital updates, according to tax software specialist TaxNav.
The issue was raised as one of six common misconceptions addressed by TaxNav as Making Tax Digital for Income Tax, known as MTD IT, begins changing how self-employed drivers report their business finances to HM Revenue and Customs.
For drivers, the capital allowances question is particularly significant because the vehicle itself will commonly be one of the largest business assets they acquire.
TaxNav said: “This is a concern for many drivers who have bought a vehicle for their business. The good news is that capital allowances do not form part of your quarterly updates.”
Instead, TaxNav says the regular MTD submissions are focused on the driver’s income and expense information accumulated during the tax year.
“Your quarterly submissions only contain income and expense information,” TaxNav added.
That means buying a taxi or private hire vehicle does not require the driver to undertake a fresh capital allowances calculation before each quarterly MTD submission.
The tax relief potentially available on qualifying business assets is instead dealt with later.
TaxNav said: “Tax relief on business assets, such as a taxi or private hire vehicle, is dealt with later as part of your end-of-year tax adjustments and included in your Final Declaration.”
It added: “There is no need to calculate capital allowances every three months. They are dealt with at the end of the tax year.”
That information if likely important for drivers trying to understand exactly how much additional administration MTD IT creates.
A driver buying a vehicle might reasonably assume that quarterly reporting means producing something resembling a full tax calculation four times a year. TaxNav’s explanation makes clear that this is not what is required when it comes to capital allowances.
Instead, drivers should view the quarterly updates and end-of-year adjustments as separate stages of the MTD process.
During the year, the driver maintains digital records and submits the required year-to-date income and expense information through compatible software. After the tax year has finished, further tax adjustments can be made before the Final Declaration is completed.
TaxNav explained separately that after quarterly information has been submitted, drivers can gain an estimate of their likely tax position based on the information provided.
However, if capital allowances relating to a taxi or private hire vehicle are only incorporated later as part of the end-of-year adjustments, the figure visible during the year should not necessarily be treated as the driver’s definitive final tax liability.
That could be particularly relevant following a major investment in a vehicle and how much of the capital the cabbies wishes to draw down on.
Capital allowances are a mechanism through which qualifying capital expenditure can receive tax relief. Rather than automatically treating the cost of acquiring a major business asset in exactly the same way as everyday running expenses, separate tax rules can apply.
For taxi drivers, this has traditionally made vehicle purchases an important part of year-end tax planning and accounting.
The arrival of MTD does not mean those calculations suddenly need to be repeated every quarter.
This is also an important distinction from the everyday costs drivers incur while operating their vehicles. Taxi and private hire businesses can generate a steady stream of expenses throughout the year, including fuel or electricity, insurance, servicing, repairs, cleaning, licensing costs and booking platform commissions.
Since April 2026, the MTD regime has applied to qualifying self-employed people and those receiving property rental income with more than £50,000 of qualifying annual income. That threshold falls to £30,000 from April 2027 and £20,000 from April 2028, bringing many more drivers into mandatory digital reporting.
