How we calculate your bill

Information about how much we charge for 2020-21.

We review our charges every year – these are then approved by our Board.

  • The charges below are for the year 1 April 2020 to 31 March 2021
  • The majority of our customers live at a metered property
  • To help you calculate how much your bill may be, please see our water usage guide


Metered properties

Water meters record the amount of water used – we charge the following per cubic metre (one cubic metre = 1,000 litres).

Service Annual standing charge* Charge £ per cubic metre
Water supply £20.34 £1.426
Wastewater £22.05 £1.998
Surface water drainage £21.08**
Highway drainage £10.55

* For normal domestic meters
** In certain circumstances a surface water rebate is available.

 


Other charging methods

If you don't have a water meter you may be charged in one of the following ways:

  • By an assessment of the annual volume of water supplied to your home (assessed).
  • By the rateable value of your home at 31 March 1990 (unmetered).
  • If your home doesn't have a rateable value and you're not on an assessed charge, a fixed annual fee.

Assessed properties

Number of bedrooms Water charges for year Sewerage charges for year*
Single occupier £107.99 £167.40
1 bedroom £136.51 £2.3.36
2 bedrooms £165.03 £241.33
3 bedrooms £186.42 £269.31
4 bedrooms £193.55 £277.29
5 bedrooms £203.52 £291.28

* If you receive a surface water rebate deduct £25.90


 

Unmetered properties

Service Annual standing charge Charge per £ of rateable value Minimum charge
Water supply £16.73 £0.896 £72.34
Wastewater £17.90 £1.207 £103.48
Surface water drainage £21.08*
Highway drainage £10.55

* In certain circumstances a surface water rebate is available.


Further information

Charges schemes for all Southern Water household customers 

2019–20:

Household Charges Scheme 2019–20

 2020–21:

Household Charges Scheme 2020–21

Retail Charges Assurance Statement

 

If you're a South East Water customer and have a water meter, find out how we calculate your sewerage charges.

2019–20: 

Charges guide for South East Water customers 2019–20

 2020–21: 

Charges guide for South East Water customers 2020–21

South East Water metering charges guide 2020–21

 

If you receive your water from a separate company, find out about our wastewater charges.

Wastewater-only customers

 

Our charges update each year on 1 April – if your billing period spans two charging amounts, we'll calculate your bill accordingly.

 
 
 
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