If you make $150,000 a year living in the region of Ontario, Canada, you will be taxed $48,872. That means that your net pay will be $101,128 per year, or $8,427 per month. Your average tax rate is 32.6% and your marginal tax rate is 47.8%. 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 $47.83, hence, your net pay will only increase by $52.17.
A $1,000 bonus will generate an extra $522 of net incomes. A $5,000 bonus will generate an extra $2,609 of net incomes.