Thousands of inheritance tax investigations have been opened by HMRC in the past year.

The department is cracking down on families they suspect are underpaying inheritance tax.

Figures obtained by NFU Mutual through a Freedom of Information (FOI) request indicate that cases rose by 41 per cent in 2024/25, from 2,807 to 3,961 - a change of 1,154.

HMRC can investigate an estate if it suspects irregularities such as undervaluing property or other assets or making large gifts before death to reduce a tax liability.

Cases can involve in‑depth checks of bank statements, property and life insurance records, and gifts made within seven years of a death.

HMRC can also revisit valuations up to 20 years after tax has been paid.

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