About This Tool
This calculator gives a general, educational estimate of how common-law property and support rights might generally apply in Ontario, since common-law partners are treated quite differently from married spouses under the law.
Unlike married spouses, common-law partners in Ontario generally do not share an automatic right to equal division of property under the Family Law Act's equalization scheme — property generally stays with whoever holds it, subject to other legal doctrines such as unjust enrichment or a constructive trust claim. This tool cannot capture every nuance of those doctrines or how a court might weigh them in a specific case.
It also cannot account for a cohabitation agreement that may already set out different terms between partners, or for spousal-support eligibility, which follows its own separate rules. See the guides linked below for the full picture.