An amended pleading is a statement of case that has been formally changed after it was first served or lodged, to correct errors or to update the facts, legal basis or remedies sought. It allows a party to refine or expand its case as matters develop, for example after disclosure, new evidence, or a change in legal strategy.In England and Wales and Northern Ireland, amendment of pleadings in civil proceedings is governed mainly by the Civil Procedure Rules, which set out when a party may amend without the court’s permission and when an application and draft amended pleading are required. Amendments may include adding or substituting parties or causes of action, subject to limitation rules.In Scotland, similar concepts apply to written pleadings, with amendments regulated by the Rules of the Court of Session and sheriff court rules, typically requiring leave of the court. In Ireland, the Rules of the Superior Courts and Circuit Court Rules perform a similar function.Across all four jurisdictions, the court controls amendments to prevent prejudice, delay or abuse of process, and may impose conditions or costs consequences when granting permission to amend.