Summary
If you make $257,686 a year living in the region of Ontario, Canada, you will be taxed $105,770. That means that your net pay will be $151,916 per year, or $12,660 per month. Your average tax rate is 41.1% and your marginal tax rate is 52.5%. 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 $52.50, hence, your net pay will only increase by $47.50.
Bonus Example
A $1,000 bonus will generate an extra $475 of net incomes. A $5,000 bonus will generate an extra $2,375 of net incomes.