Register for an online account

We just need a few more details so that you can start managing your account online.

Please enter your email address Sorry, please enter a valid email address
Please enter your account number Sorry, please enter a valid Thames Water account number (found on your bill)
Please enter your postcode Sorry, please enter a valid postcode

Register for an online account


Great, your login has been created. Please add the rest of your details below to finish your registration.


Your details

Account number:
{{accountNumber}}

Postcode:
{{postcode}}


Please select a title
Please enter account holder's first name. Sorry, please enter letters or punctuation only.
Sorry, please enter the account holder's last name Sorry, please enter letters or punctuation only.
This is the last name of the person named on the account.

Sorry, some of the details you've entered don't look right. Please check and try again.

Security questions:

Please answer your choice of 2 questions below so we can check that it's you:

Please select a security question
Please enter your date of birth Please enter a valid date of birth This is the date of birth of the person named on the account.
Please enter your telephone number Please enter a valid telephone number This is the telephone number we have registered on the account. Please note that if you've changed your number recently and not informed us, we may still have an older number on record
Please select date you moved in Please enter the month and year that your account was set up with Thames Water.
Please select your payment method Please select the method used to pay your last bill or instalment.
Please enter the last 4 digits Please enter numbers only Please enter the last 4 digits of the bank account number that is used as a Direct Debit to pay your Thames Water account.
Please select a security question
Please enter your date of birth Please enter a valid date of birth This is the date of birth of the person named on the account.
Please enter your telephone number Please enter a valid telephone number This is the telephone number we have registered on the account. Please note that if you've changed your number recently and not informed us, we may still have an older number on record
Please select date you moved in Please enter the month and year that your account was set up with Thames Water.
Please select your payment method Please select the method used to pay your last bill or instalment.
Please enter the last 4 digits Please enter numbers only Please enter the last 4 digits of the bank account number that is used as a Direct Debit to pay your Thames Water account.
Questions are identical. Please select different questions

By signing up for this service, you'll automatically be switched to paperless billing. This means we'll stop posting your bills. Instead, we'll email you when they're ready to view online.

You can easily switch back to paper bills once you're signed up and logged in.


Emails - including bills and correspondence - will now be sent to the email address that you registered with. ({{b2cEmail}}) (You can always change this in your account settings later)

Please select an option
Please enter your email address. Sorry, please enter a valid email address.

The email address you provided at the time of registration is different from the one which is already available in your account.  Please choose which address you would like to receive your bills to. (You can always change this in your account settings later)

Please select an option