Summary
If you make $39,975 a year living in the region of Ontario, Canada, you will be taxed $10,438. That means that your net pay will be $29,537 per year, or $2,461 per month. Your average tax rate is 26.1% and your marginal tax rate is 26.6%. 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 $26.62, hence, your net pay will only increase by $73.38.
Bonus Example
A $1,000 bonus will generate an extra $734 of net incomes. A $5,000 bonus will generate an extra $3,669 of net incomes.