Fraudsters have increasingly mimicked legitimate HMRC helpline numbers (often beginning with 0300) to dupe taxpayers and steal money. Last year alone, HMRC received over 100,000 phone scam reports.

The ‘spoofing’ scam worked as taxpayers would receive calls and, on checking the numbers online, would find they appeared to belong to HMRC. This often led people to believe fake calls were real and enabled fraud.

The new controls, created in partnership with the telecommunications industry and Ofcom, will prevent spoofing of HMRC’s most used inbound helpline numbers and are the first to be used by a government department in the UK.

Criminals may still try and use less credible numbers to deploy their scams – but that means they will be easier to spot.