The warning comes as in the 12 months to April 2022, HMRC dealt with nearly 277,000 referrals of suspicious contact received from the public.

However, this is significantly less than the 1,154,300 referrals that HMRC received in the lead up to April 2021 and was ‘likely due’ to the higher prevalence of the Covid-19 support schemes.

The tax authority expects around 2.1m tax credits users to renew their annual claims by 31 July 2022 and has issued the warning to remind people about the tactics used by criminals who mimic government messages to make them appear authentic.