Section 257 does not apply in relation to—
a tainted donation made by a person, or
any associated donation.
For the purposes of this section—
"tainted donation" means a tainted donation within the meaning of Chapter 8 of Part 13 of ITA 2007 (tainted charity donations: removal of income tax reliefs etc) or Part 21C of CTA 2010 (tainted charity donations: removal of corporation tax relief), and
"associated donation" means an associated donation within the meaning of section 809ZM of ITA 2010 or section 939F of CTA 2010.