National's MP for New Plymouth has been apologising after failing to declare 19 candidate donations. 

David MacLeod claimed $168,000 of donations from 2022 weren't filed last year because he believed they already had been, an error the Party picked up last week. 

He's been stripped of his roles on the Environment and Finance Select Committees - and been admonished by Prime Minister Luxon.

MacLeod says he's 'disappointed' and 'embarrassed' in himself.

"The Prime Minister expects his MPs to act in the highest standard. I've let him down, I've let the party down - as I've said, I'm absolutely gutted."

LISTEN ABOVE