48. The pensionable self-employed earnings of a worker for a year are his self-employed earnings for the year, excluding earnings contemplated in the second paragraph of section 45 and his earnings after a retirement pension has become payable to him under this Act or under a similar plan.
Nevertheless, for a year in which a worker reaches 18 years of age or in which a disability pension ceases to be payable to him under this act or under a similar plan, his pensionable self-employed earnings are reduced in the proportion that the number of months after he reaches 18 years of age or after the disability pension ceases bears to 12.
Also, for a year in which a worker reaches 70 years of age, or in which a retirement or disability pension becomes payable to him under this act or under a similar plan, his pensionable self-employed earnings are reduced in the proportion that the number of months before he reaches 70 years of age, or prior to the date when the retirement or disability pension becomes payable to him, bears to 12.
1965 (1st sess.), c. 24, s. 45; 1972, c. 53, s. 12; 1983, c. 12, s. 3.