This Practice Note discusses the types of costs that can be incurred in international arbitration proceedings and considers practical steps that can be taken to assist with the recovery of costs in arbitral procedures in which costs shifting is available. It covers the costs incurred in the arbitration, comprising parties’ legal fees and disbursements and costs of the arbitration (or ‘arbitration costs’), including the arbitrators’ fees and any institution’s fees and administrative charges, liability for costs, allocation and recoverability of costs and the arbitral tribunal’s costs award. It also covers security for costs and links out to further content on this subject.