Not actually correct. Any donations made in the previous 12 months should also be declared.
I also think there is a cover all clause that states if in doubt it should be declared.
I remember many people having a pop at Starmer for accepting a couple of pairs of glasses and suits, which were declared, and Raynor for potentially not paying £40k of stamp duty (which has now been paid) yet when the money involved in over 100 times as much people are desperately trying to justify it.
Regardless of whether you support Farage's politics he is a grifter.
Not declaring properties, getting his girlfriend to pay for his Clacton house to avoid stamp duty, continuing to get paid for Cameo videos after he became a MP would have lead to most politicians resigning by now.