HMRC contacting sole traders

by Aitch, posted in Business

HMRC is currently contacting certain sole traders by email to reiterate the importance of adjusting business expenses for personal use.

The email explains:

  • why personal use must be adjusted on your self-assessment tax return; and
  • what you need to do if your business expenses cover business and personal use.

The email also includes links to GOV.UK for more detailed information on personal use adjustments and allowable expenses. This is a genuine email that HMRC recently sent (from 20 October 2025 up to and including 7 November 2025).

This is an important reminder for sole traders. In general, if sole traders use something for both business and personal reasons, they can only claim allowable expenses for the business costs.

However, there are simplified arrangements available to sole traders for claiming a fixed rate deduction for certain expenses where there is a mix of business and private use. The simplified expenses regime is not available to limited companies or business partnerships involving a limited company.

Simplified flat rates can be used for working from home and for the business costs of vehicles. This method saves having to calculate the proportion of personal and business use.

The current monthly flat rates are based on the amount of business use of the home:

  • 25 to 50 hours worked per month can claim – £10
  • 51 to 100 hours worked per month can claim – £18
  • 101 or more hours worked per month can claim – £26

Under simplified expenses, there are the following flat rates per mile available. These rates can be used instead of working out the actual costs of buying and running your vehicle, e.g. insurance, repairs, servicing, fuel.

  • Cars and goods vehicles first 10,000 miles – 45p
  • Cars and goods vehicles after 10,000 miles – 25p
  • Motorcycles – 24p

Whilst using the flat rates is not compulsory, once a decision is made to use the simplification for a specific vehicle this must continue to be used for a vehicle as long as that vehicle is used for business purposes.

We would be happy to help you ascertain whether using simplified expenses or claiming based on actual costs incurred is more beneficial for your business.

Source:HM Revenue & Customs | 09-11-2025
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Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.
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