The taxman is cracking down! HM Revenue and Customs (HMRC) has raked in an extra £246 million in unpaid inheritance tax over the last financial year, a significant jump driven by intensified investigations across the UK. This means that even families with what might be considered a modest household could now find themselves owing this tax.
But here's where it gets controversial... The number of inheritance tax investigations has climbed to 3,977 in the year ending April 2025, up from 3,793 the previous year. This surge isn't by chance; HMRC is leveraging advanced technology, including artificial intelligence (AI) and sophisticated data-matching software, to pinpoint any discrepancies or errors in inheritance tax submissions. They're even cross-referencing information from the Land Registry, the Trust Registration Service, and yes, even Google Maps, to verify the valuations of estates that families have reported. This is all part of a broader strategy to boost revenue from estates that might have been underreported or incorrectly valued.
And this is the part most people miss... The inheritance tax threshold, known as the nil rate band, has been frozen at £325,000 since 2009. This is a stark contrast to its history, where it increased almost annually since 1986. This freeze is set to continue until at least April 2028, meaning more and more estates are likely to become subject to inheritance tax as their value increases over time.
For couples, there's a potential combined allowance of up to £1 million, thanks to the £175,000 residence nil rate band and spousal transfers. However, a significant change is on the horizon: from April 2027, pensions are also expected to be brought into the inheritance tax net, which could substantially increase the value of taxable estates.
Government revenue from inheritance tax has already seen a dramatic rise, reaching £8.3 billion in 2024, a whopping 61% increase since 2020. In the first nine months of the current financial year alone, receipts hit £6.6 billion, £232 million more than the same period last year.
Common mistakes that trigger these investigations often involve failing to declare personal possessions like jewellery and furniture. These items, when valued at their full market price, must be included in the estate's total value. As David Lunn, partner at TWM Solicitors, points out, "Not declaring goods has prompted countless IHT investigations in the past." He stresses that "Items such as jewellery or even a valuable set of dining chairs must be declared at their full market value."
Property valuations are another frequent point of contention. Mr. Lunn explains that investigations have risen because HMRC recognizes that as the scope of inheritance tax broadens, "irregularities become more common, and so the amount of tax, interest and penalties they can recover is likely to rise." He warns that inheritance tax was initially intended for those with substantial wealth, but the frozen thresholds have fundamentally altered this, meaning "Even families with a relatively modest home are now finding they owe IHT."
With tax rules becoming increasingly intricate and the inheritance tax net widening with each Budget, seeking proper advice is crucial. The penalties for errors can be substantial, potentially running into tens of thousands of pounds.
So, what are your thoughts? Do you believe HMRC's increased use of AI and data matching is a fair way to ensure everyone pays their dues, or does it feel like an overreach that unfairly targets ordinary families? Let us know in the comments below!
