40K nets around 32K in Ontario. 1 bedroom rent in Toronto's suburbs is over 2K. That's 24K per year. 24K / 40K = 60% of gross income to housing. 24K / 32K = 8K leftover after housing. 8K / 12 = $666 per month for all else. This number falls to $333 on minimum wage. Monthly transit pass is $156. If you live outside TO proper, you often pay for two passes. Mississauga's is $131. A cheap phone bill with data that could somewhat replace Internet is $35. Internet connection is $50+. Have you gone to a grocery store recently? Better not have any unplanned expenses.