HMRC’s intensified scrutiny of property valuations is evident in the significant rise in referrals to the Valuation Office Agency (VOA), which increased by 23.5% over the past year. This surge, from 11,845 to 14,631 cases in the twelve months ending September 30, 2025, aligns with a notable £200 million increase in inheritance tax receipts for the financial year 2025/26, now totaling £8.5 billion.
Officials attribute this increased vigilance to both the growing revenue from inheritance tax and the adoption of advanced technologies, including artificial intelligence and data matching systems designed to identify discrepancies in reported property values. Sources indicate that these tools allow HMRC to analyze data more effectively than ever before.
The main nil-rate band for inheritance tax has remained fixed at £325,000 since 2009 and will remain frozen until at least April 2031. As the threshold for taxation remains stagnant, estates exceeding this amount face a steep tax rate of 40%. This situation places additional pressure on executors to ensure accurate property valuations.
According to Laura Walkley, an expert in estate planning, “HMRC is clearly focusing on property valuations as a significant potential source of revenue.” She emphasizes the risks associated with inaccurate reporting, noting that executors who fail to report property values properly could face financial repercussions—potentially leading to additional taxes and interest payments.
Moreover, there has been a noticeable shift towards questioning figures submitted in inheritance tax returns rather than accepting them at face value. An HMRC spokesperson stated, “The majority of people pay the correct amount of Inheritance Tax. As has always been the case, where it is suspected an individual has not, investigations can be opened.” This underscores the agency’s commitment to ensuring compliance.
The increased scrutiny comes as market uncertainty affects property transactions, complicating accurate valuations further. Consequently, executors must navigate these challenges while adhering to stringent reporting requirements.
While HMRC’s focus on property valuations signals a proactive approach to maximizing tax revenues, uncertainties remain regarding how these practices will evolve. No timeline has been shared for any potential changes in policy or technology enhancements that may further influence this landscape.