09/10/2026
π’ What Happens When HMRC Disagrees With Your Tax Return?
Most tax returns are processed without any issues. However, if HMRC believes something doesn't look right, they may open an enquiry and ask for further information.
πΉ It doesn't always mean you've done something wrong
Sometimes HMRC simply wants to understand how a figure was calculated or to see evidence supporting a claim.
πΉ Good records are your best defence
Receipts, invoices, mileage logs, and bank records can make the process much smoother if questions are raised.
πΉ Claims need to be supported
HMRC expects expenses to be genuine and backed by evidence. Claiming personal purchases as business expenses, inflating mileage, or including costs you didn't incur can lead to additional tax, penalties, and interest.
πΉ Social media isn't always a reliable source of tax advice
We regularly hear stories of people being told they can "put everything through the business". In reality, HMRC has clear rules about what can and cannot be claimed.
πΉ Prevention is better than cure
Taking a little extra care when preparing records and tax returns is usually far easier than dealing with an HMRC enquiry later.
The best approach is often the simplest: claim what you're entitled to, keep good records, and don't be tempted by advice that sounds too good to be true.
At LM Griffiths & Co, we help clients keep accurate records, submit compliant tax returns, and stay on the right side of HMRC.
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