There is no single official statistic that precisely measures how many people in the UK do not understand Inheritance Tax (IHT). However, multiple surveys and research reports provide strong indications that public understanding is low.

Key Findings from Surveys

Research conducted by Charles Stanley indicates that only around 26% of people say they completely understand how IHT works. This means that approximately 74% of people acknowledge that they do not fully understand the tax.

Further studies suggest that while many people believe they have a basic understanding of IHT, this confidence often does not reflect real knowledge of important details such as allowances, the seven-year gifting rule, the residence nil-rate band, or exemptions.

YouGov polling and legal research also show that a large proportion of the public believes IHT is unfair or should be abolished. These opinions are frequently based on misunderstandings, including the belief that most estates pay IHT, when in reality only around 4–5% currently do.

Conclusion

Taken together, available evidence suggests that roughly three-quarters of Brits do not fully understand how Inheritance Tax works. This widespread lack of understanding helps explain why many people fail to engage in early estate planning or seek professional financial advice.