Voters believe Nigel Farage should have declared a controversial £5m gift he received from crypto billionaire Christopher Harborne that is now being investigated by Parliament’s ethics watchdog.

The Reform UK leader did not register the gift despite parliamentary rules requiring MPs to declare any “personal benefit” they have received in the 12 months before taking office, and to register them within one month of their election.

Farage said the money from the Thailand-based businessman was for his security and said he had no obligation to declare it because it was “purely private” and “wasn’t political in any sense at all”.

But a clear majority (60 per cent) of voters appear to reject this, believing Farage should have publicly declared it, with less than a quarter (22 per cent) backing the Reform leader in saying he did not need to.

Of the main four parties, only Reform’s voters backed Farage’s insistence he did not need to declare the gift (59 per cent).