The forecast average Affinity Water (South East) household bill is £294 a year from 1 April 2026. That is £3 more than the £291 average for 2025/26.
Your total household cost will usually include a separate wastewater bill from another company. Do not compare this figure directly with a combined-company average.
What your bill includes
The published £294 figure covers clean water supply. Wastewater charges are billed separately in much of Parts of Kent.
Estimate your Affinity Water (South East) bill
The company average is a benchmark, not a tariff. A one-person metered home that uses water carefully can be well below it. A larger household may be above it. Use the calculator with your household size and a realistic usage level.
Company boundaries do not follow postcode boundaries exactly, and different companies can provide water and wastewater. Your latest bill is the authoritative source.
Affinity Water (South East) questions
What is the average Affinity Water (South East) bill in 2026/27?
Affinity Water (South East)'s published water-only household average is £294 a year, equivalent to £24.50 a month. Individual bills vary.
Can I switch away from Affinity Water (South East)?
Household customers cannot normally switch their appointed regional water company. Eligible businesses in England can choose a water retailer.
Why might my bill be higher than the average?
A larger household, high metered consumption, a leak, a high rateable value or extra services can all result in a higher bill. Compare like with like and check whether your figure covers both water and wastewater.