Key takeaway
The Court of Appeal’s decision in Gluck v Endzweig [2026] EWCA Civ 145 confirms that an arbitration agreement may include bespoke correction or amendment powers, but those powers must still allow an award to become final and enforceable at a defined point. A clause allowing amendment “at any time” risks being severed, leaving the statutory correction regime under section 57 of the Arbitration Act 1996 to apply.
What happened in Gluck v Endzweig?
Mr Gluck sold a 50% shareholding in Net Pex Ltd to Evertop Ltd under a Share Purchase Agreement. A dispute arose over whether remaining instalments should be reduced under a price adjustment mechanism. The parties appointed two rabbis as arbitrators, constituting what they called a Beth Din, under a separate arbitration agreement.
