Summary
If you make $274,547 a year living in the region of Ontario, Canada, you will be taxed $114,622. That means that your net pay will be $159,925 per year, or $13,327 per month. Your average tax rate is 41.8% 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.