Joint and several describes a liability or obligation where two or more parties are each liable together for the whole, and also each liable individually for the whole. A claimant or creditor may pursue any one debtor for 100% of the debt or damages, leaving that debtor to seek contribution from others.In England and Wales and Northern Ireland, joint and several liability commonly arises in tort (for example, concurrent tortfeasors), contract (co-obligors), guarantees, partnership law and as expressly drafted in finance and commercial documents. It is recognised in statute (for example, contribution legislation) and extensively developed in case law.In Scotland, the equivalent concept is usually described as “joint and several” or “in solidum”, with similar practical effect: each obligant can be sued for the full amount, subject to rights of relief.In Ireland, usage and effect broadly mirror England and Wales; joint and several liability appears frequently in commercial contracts, banking, construction and professional negligence.“Joint and several” should be distinguished from purely joint liability, where all debtors must be sued together, and from several liability, where each debtor is only liable for its own share.