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Cymraeg

Change your billing address

Use this form to change your billing address.

If you are moving, please do not use this form. Click here to select the correct moving option.

Once we receive your form, we'll change your details within 10 working days. You won't need to do anything further, and you'll see your change in any future correspondence from us.

What you'll need

  • Your Welsh Water account reference number This can be found in the top right corner of your bill, on your My Account dashboard, or the reference on your payment if you pay by direct debit.
  • The address of the property we bill This is not the current billing address
  • The updated billing address