Summary
If you make $678,345 a year living in the region of British Columbia, Canada, you will be taxed $324,427. That means that your net pay will be $353,918 per year, or $29,493 per month. Your average tax rate is 47.8% and your marginal tax rate is 53.5%. 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 $53.50, hence, your net pay will only increase by $46.50.
Bonus Example
A $1,000 bonus will generate an extra $465 of net incomes. A $5,000 bonus will generate an extra $2,325 of net incomes.