You are allowed 5 children in your care under the age of 10, and not including your own.

From website: http://www.ckoeyc.ca/ccir-database/p...egulations.htm

"The number of children that you may care for is determined by the Province of Ontario’s Day Nurseries Act and by local by-laws. Under the Day Nurseries Act, you may provide care to five children ten years of age and under per household, no matter how many adults are involved in providing the care. This does not prevent you from providing care for more than five day care children if some of them are part-time. However, no more than five day care children may be on the premises or in your care at the same time. Once a child reaches his/her eleventh birthday, he/she is no longer included in the total of five day care children. Your children, regardless of their age, are not counted in the total of five children if you are working privately. However, if you are working with a supervised home day care agency, your own children under the age of six may be counted in the total of children. Also, when working with a supervised home day care agency, there should be no more than two children under the age of two years and no more than three children under the age of three in your care at any time."