4.—(1) A council may make a payment to each councillor by way of an allowance (“basic allowance”) for, or in relation to anything done in connection with, service as a councillor, including an approved duty.
(2) The amount of basic allowance shall be determined by the council.
(3) Subject to paragraph (5), the amount of basic allowance shall be the same for each councillor.
(4) Subject to paragraph (5), where the term of office of a councillor begins or ends otherwise than at the beginning or end of a year, the entitlement to payment of such part of the basic allowance shall be the relevant proportionate amount of the yearly rate.
(5) For any period, in relation to any year, during which a councillor who is also—
(a)a member of the Northern Ireland Assembly;
(b)a member of the House of Lords;
(c)a member of Parliament; or
(d)a member of the European Parliament,
is entitled to receive basic allowance, by virtue of paragraphs (1) to (4), the amount of basic allowance payable to the councillor shall be reduced by two thirds.