The use of peritoneal dialysis (PD) to treat patients with acute kidney injury (AKI) has become more popular amongclinicians following evidence of similar outcomes when compared with other extracorporeal therapies. Although it hasbeen extensively used in low-resource environments for many years, there is now a renewed interest in the use of PD tomanage patients with AKI (including patients in intensive care units) in higher income countries. Here we present theupdate of the International Society for Peritoneal Dialysis guidelines for PD in AKI. These guidelines extensively review theavailable literature and present updated recommendations regarding peritoneal access, dialysis solutions and prescriptionof dialysis with revised targets of solute clearance.