Report a change in your Council Tax circumstances

Tell us about changes that affect your Council Tax and update your details online or by phone.

What changes you need to tell us about

Even small changes to your situation can affect how much Council Tax you pay. 

You can use the online form to tell us if, for example: 

  • there is a change in your income or benefits
  • there is a change in the income or benefits of anyone living with you
  • anyone moves in or out of your home
  • anyone comes to stay with you (even for a short time)
  • your working hours change
  • you change jobs
  • you start or stop working
  • your wealth or savings increase above £6,000
  • you or anyone living with you will be away from home for more than 4 weeks
  • you go into or come out of hospital
  • you're moving out of the borough
  • you're moving into the borough 

Contact us if you are not sure if a change will affect the Council Tax you pay. 

Tell us about a change by phone

You can also call us: 
020 8496 3000 
9am to 5pm, Monday to Friday 

Providing evidence

You may be asked to provide evidence of your change of situation, such as proof of address or income.

You can provide evidence using the online form

You’ll need to:  

  • take a picture or scan of the document you want to send us, and save it on your computer
  • attach the files that you want to send to us to the form
  • submit the form  

File types you can submit

We accept the following file types:  

  • GIF
  • JPG
  • JPEG
  • TIFF
  • PDF
  • BMP
  • PNG  

No single file should be more than 10MB in size.  

Providing evidence by post

Documents can be sent by post to:  

The Benefits Service  
PO Box 856   
London   
E17 9PN

We can’t accept responsibility for documents that are lost in the post.    

If you choose to send original documents by post, please allow 2-5 working days for these documents to be returned before making any contact about missing documents.

Providing evidence in person

You can only drop off evidence at one of our libraries Monday to Friday, 9am-5pm, regardless of a particular library's opening hours.  

Contact us about Council Tax

If you can’t find what you need online, use this form to contact us about Council Tax.

Council Tax online query form