Supplementary allowance payable at age sixty
23.1A person referred to in section 21.1 who has to his or her credit at least six months of pensionable service as a minister is entitled, on or after attaining sixty years of age, in addition to the supplementary allowance to which he or she is entitled under section 21.1, to a supplementary allowance in an amount equal to 50% of the minister’s pension calculated in accordance with subsection 11(3).