Guide

Water and sewerage charges for businesses

Introduction

Water and sewerage services used by businesses in Northern Ireland are charged directly by Northern Ireland Water (NI Water). If you have a water meter, the amount you are charged will be based on how much water your business uses. If you don’t have a water meter, your charges will be based on the rateable value of your property. The tariffs that apply and the allowances available are published by NI Water annually.

Trade effluent charges

If you produce trade effluent, ie wastewater other than domestic sewage, you must get permission from NI Water. You may need to pay extra on top of your sewerage bills.

By reducing the amount of water that your business uses you can lower your water, sewerage and trade effluent bills. You will also help reduce the impact that your business has on the environment.

This guide provides information on the water and sewerage charges that businesses must pay and highlights the importance of reducing water use.