United Utilities says it has delivered strong financial performance in 2025/26 - the first year of AMP8 – its preliminary, unaudited full year results show underlying revenue increased 20% in line with allowances set out in the PR24 Final Determination, resulting in an underlying operating profit of £1.06 billion, a 35% increase compared with the prior year.

United Utilities has reported an underlying pre-tax loss of £34.3 million pounds for the year to the end of March compared with a profit of £301.9 million during the previous twelve months, according to the company’s final results for 2022/23 published this morning.