Summary
If you make $45,140 a year living in the region of Ontario, Canada, you will be taxed $11,784. That means that your net pay will be $33,356 per year, or $2,780 per month. Your average tax rate is 26.1% and your marginal tax rate is 32.0%. 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 $31.97, hence, your net pay will only increase by $68.03.
Bonus Example
A $1,000 bonus will generate an extra $680 of net incomes. A $5,000 bonus will generate an extra $3,402 of net incomes.