In Ontario, common law status begins after 3 years of cohabitation or having a child together in a permanent relationship.

Under Ontario family law, couples are considered to be in a common law relationship when they meet either of these criteria:

  • Have lived together continuously for at least 3 years
  • Have a child together and are in a relationship of some permanence

Once established, common law partners gain certain legal rights and obligations similar to married couples, particularly regarding property division, spousal support, and inheritance. However, it’s important to note that common law relationships in Ontario provide fewer automatic rights than marriage, especially concerning property ownership.