Average Water Bill UK: What Households Pay in 2026/27

The average water bill in 2026/27

Water UK puts the average household water and sewerage bill in England and Wales at £639 a year for 2026/27, up £33 or 5.4% on the £606 average for 2025/26. The new charges took effect on 1 April 2026, and £639 works out at £53.25 a month.

Many households pay in 10 monthly instalments rather than 12, so the amount leaving the bank is £63.90 a month, not £53.25. Check your instalment count before comparing with the national figure.

The £639 figure covers England and Wales only; Scotland pays through council tax unless metered, and Northern Ireland has no domestic charges.

What your bill actually pays for

Your bill has two parts: the water charge, for clean water treated and piped to your home, and the sewerage charge, for wastewater taken away and treated, plus rainwater drainage. The average splits roughly into £309 for water and £330 for sewerage, so nearly half of what you pay is for taking water away.

Metered vs unmetered: how your bill is worked out

A metered bill combines a standing charge, a fixed amount for being connected, with a volumetric charge that rises with every cubic metre you use. Meters are read at least once a year; giving readings more often keeps bills accurate.

An unmetered bill is based on your property's rateable value, a rental valuation set between 1973 and 1990, plus a standing charge. Household size makes no direct difference, and using less water does not cut it. Where a meter cannot be fitted, assessed charges apply, usually based on bedrooms.

Worked example, labelled illustrative: the average person uses about 137 litres of water a day, according to Discover Water. A two-person household therefore uses about 274 litres a day, or 137 x 2 x 365 = 100,010 litres a year, roughly 100 cubic metres. That is the usage a metered two-person home pays for, plus a standing charge.

Why bills vary so much by region

You cannot switch water supplier as you can switch energy supplier. Each regional company serves its own area and sets charges on the cost of its network and the investment it needs.

The gap between cheapest and dearest is £224 a year, and the rise varies too: Thames Water rose just £3, or 0.4%, while Severn Trent rose 10%. Your region sets the starting point; size and metering decide where you land.

How household size changes the bill

On a meter, more people means a bigger bill: every extra person showers, flushes and runs the washing machine. MoneyHelper, using Southern Water data in the Consumer Council for Water's meter calculator, gives the scale: one person £507, two £736, three £965 and four £1,129 a year. Those sit above the national average, but the pattern holds everywhere.

Without a meter, household size does not change the bill directly; the rateable value or number of bedrooms decides it, so a single person in a large unmetered house can pay more than a family of four in a small metered flat.

Why bills rose again in April 2026

The April 2026 rise of 5.4% is the second year of a £104 billion investment programme running to 2030. Ofwat approved it in December 2024, allowing bills to rise 36% over five years before inflation, with about £20 billion invested in 2026/27 alone. Water UK notes the rise was two points above the latest inflation figure, so it is a real increase.

How to cut your water bill

The biggest decision is whether to get a meter. The Consumer Council for Water's free water meter calculator compares your unmetered bill with an estimated metered one; homes with fewer people than bedrooms tend to save. See our guide on how to save money fast on a low income for more ways to trim household bills.

On a meter, every litre saved is money saved. Fix dripping taps and running toilets, take shorter showers and run only full loads. Most suppliers give away free water-saving gadgets.

What to do if you are struggling to pay

If the bill is hard to pay, contact your supplier early. Every company runs a social tariff, a discounted rate for low-income households or those on certain benefits, and most offer flexible plans and payment breaks. WaterSure caps the bill at the average metered bill where someone has a medical condition needing lots of water, or where three or more children under 19 live at home in full-time education.

Eligibility usually depends on your household's benefits, so check what you can claim. Our guide to what Universal Credit is explains the main benefit behind social tariffs. Never ignore a water bill: suppliers must offer help, but only if you ask.

This article is general information only, not financial advice.