Final answer:
The CRA allows union dues to be treated as a before-tax deduction unless they exceed 10% of gross income.
Step-by-step explanation:
The CRA (Canada Revenue Agency) allows union dues to be treated as a before-tax deduction. However, there are certain conditions to be met for this deduction. The correct answer is option c) Exceeds 10% of gross income.
The Canada Revenue Agency (CRA) allows union dues to be treated as a before-tax deduction, meaning individuals can deduct these dues from their income before calculating their taxable income. However, there aracertain conditions and limits on this deduction.