Income and Corporation Taxes Act 1988

4 (1) Where it appears to the Board that the relief (if any) to which a person is entitled under section 266 has been exceeded or might be exceeded unless the premiums payable by him under any policy or contract were paid in full, they may, by notice to that person and to the person to whom the payments are made, exclude the application of subsection (5) of that section in relation to any payments due or made after such date as may be specified in the notice and before such date as may be specified in a further notice to those persons.

(2) Where the application of section 266(5) is so excluded in relation to any payments, the relief (if any) to which the person by whom the payments are made is entitled under section 266 shall be given to him under paragraph 6 below.