In most cases, child support is paid until a child reaches the age of majority (which can differ between provinces). Child support can extend past that time if the child is still dependent (for example, if they are still in school, or cannot support themselves because of a disability).
If you are paying support for a child over 19 who is in school, the obligation to pay support usually ends when the child finishes their first program or degree; however, this is not always the case, and will depend on your particular situation.
Child support orders do not stop automatically. If you want to terminate a child support order, you must apply to the court to do this. If you are not sure whether you should make an application to stop your child support, speak to a lawyer for advice.
When do I stop paying child support?