United Utilities (LSE:UU) holds one of the longest Dividend growth streaks in our data, and the regulatory backdrop has become more important to that record. The North West water company has pressed Ofwat for around £1bn of additional funding for resilience work. Income investors now need to judge how far that outcome could shape the cash available to them.

Steady income, moderate cover

Our figures, a snapshot from 7 October, show an annual dividend of 53.66p per share and a latest payment of 35.78p, which accounts for about two-thirds of the annual total. The trailing 12-month Yield is 3.8%, and the indicated yield is also 3.8%. That is a reasonable income level, and it is broadly the kind of return that retail investors tend to associate with a regulated utility, even if higher yields can be found in other parts of the FTSE 100.

Year-on-year growth of 3.5% is modest but consistent with the character of the business. Water companies have revenues set by a regulator over multi-year periods, and their dividends usually move in small steps, not in sudden jumps. That steadiness is a large part of the appeal for those relying on the income.

The Payout Ratio of 62.4% implies cover of about 1.6 times. That is a tighter Margin than at many of the lower-yielding stocks in the index, but it is not unusual for a Business with predictable, regulated revenue. Cover is only part of the assessment for a water company, though, since heavy Capital spending and substantial borrowings also affect how comfortably the dividend can be financed.

An unusually durable record

The streak data is where United Utilities stands out. It has 37 years of continuous payments and 15 years of continuous growth in our data. Fifteen consecutive years of increases is a substantial record by the standards of UK companies, covering a financial period that included the Pandemic and a sharp rise in Inflation and interest rates.

A record of this length has real value for income investors, as it shows a board's commitment to steady progression. It does not, however, provide protection against a change in the regulatory or political environment. The water industry has been under close public and political scrutiny in recent years, and a dividend record alone does not remove that risk.

The Ofwat question

The latest news on the company centres on its dealings with its regulator. In a trading update, United Utilities (LSE:UU) reaffirmed its full-year outlook and said that it had submitted a resilience plan of around £1bn to Ofwat. One report put the request at £1.026bn in re-opener costs, while another update described its response to Ofwat's 2026 Cost Change Draft Decision.

The issue matters for dividend investors because of how water funding works. If the regulator allows costs, they can be recovered through the regulatory settlement. If it does not, or allows less, the company would have to reconsider how such work is financed, or bear more of the burden itself. It is not yet clear how Ofwat will respond, and no final decision has been reported.

No half-year statement for 2026-27 had been published at the time of writing, so there is no updated dividend to set alongside the snapshot, and the figures above should be read accordingly. The company has published its key corporate dates for 2026-27, and investors will want to check these directly for the timing of the next results.

What to watch

The first item is the half-year results, which should bring an Interim Dividend announcement and show whether the 15-year growth streak is on course to continue. Next is Ofwat's final decision on the cost request, which could influence future funding. Investors should also watch Debt levels and capital spending, along with wider policy developments affecting the water sector.