Summary
If you make $40,000 a year living in the region of British Columbia, Canada, you will be taxed $9,999. That means that your net pay will be $30,001 per year, or $2,500 per month. Your average tax rate is 25.0% and your marginal tax rate is 26.9%. 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 $26.90, hence, your net pay will only increase by $73.10.
Bonus Example
A $1,000 bonus will generate an extra $731 of net incomes. A $5,000 bonus will generate an extra $3,655 of net incomes.