This paper sets out expectations in three key areas to guide water company planning on net zero. It details our expectations for action in relation to net zero target setting; scope of action on net zero; and prioritising the reduction of Greenhouse Gas (GHG) emissions. In particular, this paper explains why we consider that company net zero targets should align with national government targets, why company action on net zero needs to encompass both operational and embedded emissions, and why companies should prioritise the reduction of GHG emissions before using offsets. We also outline our next steps. This paper is intended to inform water companies' net zero planning and stimulate discussion with us on how we can support the sector in reaching net zero targets.