Summary
If you make $180,480 a year living in the region of Quebec, Canada, you will be taxed $72,789. That means that your net pay will be $107,691 per year, or $8,974 per month. Your average tax rate is 40.3% and your marginal tax rate is 50.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of $100 in your salary will be taxed $49.97, hence, your net pay will only increase by $50.03.
Bonus Example
A $1,000 bonus will generate an extra $500 of net incomes. A $5,000 bonus will generate an extra $2,502 of net incomes.