For instance:

-Alimonies.

-Student loans (under some conditions)

-Any fine or debt imposed by court.

-All debts incurred by fraud.

For more information, you may contact the Office of Superintendent of Bankruptcy Canada: http://www.ic.gc.ca/eic/site/bsf-osb.nsf/eng/br01861.html.

Contact us for more details; the first consultation is free.