Business charges

Current non-domestic water and wastewater tariff will expire on 30th September 2025. Following a four-week public consultation, the Commission for Regulation of Utilities (CRU) has approved a 9.8% increase to non-domestic tariffs levels. The new tariff levels will apply from 1st October 2025. For more information on the CRU’s decision visit: www.cru.ie.

Charges are being updated because the tariffs approved under the CRU’s 2024 Non-Domestic Tariff Framework (the Framework) decision expire on 30th September 2025.

The Framework was established in 2019 and created a national set of harmonised charging arrangements for the supply of water to a non-domestic premises and for removing wastewater from their premises. Tariffs were last updated on the 1st October 2024 for a 12 month period. 

Following public consultation, the CRU has decided on new water and wastewater tariffs to apply from 1st October 2025 until 30th September 2026.

What are the key changes?

For clarity, the CRU’s decision provides for the following:

• Current non-domestic water and wastewater tariffs will rise by 9.8% and apply to Uisce Éireann’s non-domestic customers from 1st October 2025.
• Bill capping arrangements from 1st October 2025: if a customer is already on a capping arrangement and is facing an annual bill increase of €750 or more, a 75% cap (if required) will automatically apply to the increase in the annual bill.
• Bill capping arrangements for non-domestic water and wastewater charges will be unwound by 30th September 2026. 

For more information, please visit the CRU’s website:

• CRU Decision Paper on Uisce Éireann’s Non-Domestic Tariff Framework 2025

In line with the CRU’s 2024 Framework decision new national harmonised trade effluent charging arrangements will apply to Uisce Éireann’s trade effluent customers from 1st October 2026.

• The CRU’s 2024 decision provides for the integration of harmonised national trade effluent charging arrangements into the Framework. This is to provide customers with sufficient time to plan for the change and to enable Uisce Éireann make the necessary system and operational changes to implement national trade effluent charging arrangements. As part of a future consultation, new trade effluent tariffs will be set and will apply from 1st October 2026. Uisce Éireann will maintain where applicable the existing Local Authority (LA) trade effluent charging arrangements until this date.

For further information visit the CRU's website:

• Non-Domestic and Trade Effluent charging framework decision consultation 2024

Who will be affected by the new charges?

The new water and wastewater tariffs effective from 1st October 2025 will apply to both business customers and mixed-use customers who use water services for both business and domestic purposes including public Group Water Schemes. Please visit for more information on group water schemes.

New trade effluent charges will not come into effect until 1st October 2026 and a further consultation will be required in advance of this date to set trade effluent tariff levels.

A fair charging Framework

Uisce Éireann welcomes the CRU’s 2025 Framework decision which continues to set out a national set of water and wastewater charges that will be transparent, and equitable for all businesses countrywide. The Framework delivers:

• An equitable set of charges which ensures that customers using the same volume of water are charged the same; and
• Charges that promote conservation by maintaining a relatively low fixed standing charges. This also provides more scope for customers to reduce their water and wastewater bills.

For further information on the new water and wastewater charges please see links and table below

• Download our Customer Information Paper which summarises the CRU’s decision, considers overall customer impact and includes case study examples of the new charges (see section 5).

The application of VAT and the timing of its introduction is a matter for the Government. Water supply and wastewater collection services are currently exempt from VAT with the exception of Tankered Waste, Sludge, and Leachate.