Basic net income (loss) per Common Share is calculated by dividing net income (loss) attributable to Common Shares by the total weighted average number of Common Shares outstanding during the period. Diluted net income (loss) per Common Share is calculated to give effect to share option awards and restricted share unit awards.

The following table presents reconciliations of the denominators of the basic and diluted per share computations. Net income (loss) was equal to diluted net income (loss) for all periods presented.

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For the three-month and six-month periods ended June 30, 2026 and 2025, all and no, respectively, outstanding equity-settled restricted share unit awards were excluded in the calculation of diluted income per Common Share. For the three-month and six-month periods ended June 30, 2026, all (2025 – approximately 1 million) and all (2025 – all), respectively, TELUS Corporation share option awards were excluded in the calculation of diluted income per Common Share.