HMRC's Fraud Investigation Service has published its 2025 to 2026 technical note, and the numbers are a useful warning for small and mid-sized businesses: fraud enforcement is not just a criminal headline. It is a records, controls and evidence issue.
The Fraud Investigation Service says it generated 4.206 billion of compliance yield in 2025 to 2026. The largest tax-regime line was excise at 2.125 billion, followed by VAT at 991 million, other compliance interventions at 466 million, Corporation Tax at 319 million and Income Tax at 305 million.
HMRC defines tax fraud broadly: deliberate omissions, concealment, misrepresentation, false repayment or relief claims, hidden offshore income or gains, smuggling taxable goods, and deceptive presentation of facts to gain a tax advantage. It says most work uses civil powers, including information-gathering powers and penalties that can reach up to 200% of the tax due in some cases.
The criminal side is also material. HMRC says criminal investigations delivered 2.114 billion in Exchequer benefits in 2025 to 2026. The year included 494 case adoptions, 626 searches completed, 468 positive charging decisions, 300 prosecutions, 260 convictions and an 87% court success rate. Sentencing data shows 84 custodial sentences, averaging 37 months, and 79 suspended sentences, averaging 18 months.
Civil fraud work remains a major part of the picture. HMRC reported 2.092 billion in civil-investigation Exchequer benefits, with 2.462 billion of tax under consideration in Fraud Investigation Service civil enquiries as at 31 March 2026. Code of Practice 8 and Code of Practice 9 cases also remained active, with 814 COP8 cases and 1,790 COP9 cases on hand.
For honest businesses, the point is not panic. It is preparation. HMRC's enforcement model depends on data, evidence, information requests, disclosure routes and the ability to test whether the business can explain what happened.
Why it matters
The commercial risk for SMEs is that enforcement pressure does not only touch deliberate fraudsters. It also raises the standard for everyone else's records.
A business with clean VAT reconciliations, payroll records, bank explanations, adviser notes, supplier checks and board decisions can respond calmly when questions arrive. A business with missing invoices, unexplained cash movements, weak payroll evidence or undocumented tax decisions has a much harder time proving reasonable care.
The human consequence is obvious. Owners do not want to lose weeks reconstructing records under pressure. Finance teams do not want to explain gaps that should have been closed monthly. Employees and suppliers do not want the business dragged into disruption because the admin layer was treated as optional.
For Genius clients, this is exactly where bookkeeping, payroll, tax and company-admin discipline become commercial protection. Clean records are not paperwork. They are the defence file.
Practical takeaway
Businesses should use the HMRC figures as a prompt to check whether their records would survive an enquiry, not just whether returns were filed.
The immediate checks are:
Reconcile VAT returns back to sales, purchases, bank and supporting invoices.
Keep payroll records, hours, deductions, benefits and worker-status evidence together.
Document tax advice, assumptions and owner decisions before memory fades.
Review supplier and customer risk where transactions look unusual, high value or urgent.
Keep bank explanations for cash withdrawals, transfers, director payments and refunds.
Make sure Corporation Tax, Income Tax, VAT and payroll evidence tell the same story.
Check that HMRC authorisations and adviser access are current.
Build a monthly defence file rather than waiting for an enquiry to start.
Genius can help business owners tighten the practical layer: bookkeeping, payroll, VAT evidence, adviser records and tax-admin controls that make the business easier to defend if HMRC asks questions.
Conclusion
HMRC's Fraud Investigation Service figures are large, but the lesson for ordinary businesses is simple.
The best time to prepare for a tax question is before the question arrives. Clean records give owners control, advisers something solid to work from, and HMRC less room to misunderstand the business.
Enforcement is getting sharper. The admin file has to get sharper too.
Speak to one of the Genius team: 020 7700 2000 or hello@geniusmoney.co.uk
