Civil partnerships have also surged (up 73% since 2022) showing couples are exploring alternative ways to formalise their relationships. In this briefing, partner Jemma Pollock and senior associate Harriet Collins consider what the data shows and how the law is lagging behind. A changing picture Whilst marriage and civil partnerships do continue to remain the most common legal partnership status, the ONS estimates there are now 6.5 million people living in a cohabitating relationship.