The Tories on Tuesday will call for “unloved” non-doms and other wealthy people who give to the arts to be rewarded with honours and given potentially greater tax incentives.

Plans to give gongs to philanthropists, as part of a broader shake-up in arts funding, will be set out by Jeremy Hunt, the shadow culture secretary. He will also call for changes to the “pettifogging” restrictions on the rewards that organisations are allowed to offer benefactors to thank them for tax-free donations.