Guidance

Give authority to act for Council Tax challenges

Fill in a form to give someone else authority to challenge your Council Tax band on your behalf.

• From: Valuation Office Agency
• Published: 20 October 2025

Submit this form to the Valuation Office Agency (VOA) to appoint someone to challenge your Council Tax band on your behalf. This could be an agent, friend or family member.

This will also give the VOA authority to share information about the property with the person you have named. This includes any previous contact you’ve had with the VOA about the property.

This form overrides any previous authority given to VOA. We hold this authority until you either:

• tell us otherwise
• instruct us that the details have changed
• send us an updated form

You must fill in a Council Tax challenge form and send both forms to the VOA together. If you do not send both forms together, your challenge may be marked as invalid.

How to fill in the form

You can either:

• download the form and fill it in on-screen
• print the form and fill it in by hand

Authority to act form

MS Word Document, 74.6 KB

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Where to send the form 

Attach the completed form to an email. Send it to ctonline@voa.gov.uk.

If you prefer, you can send the completed form by post to:

Valuation Officer
Wycliffe House 
Green Lane 
Durham 
DH1 3UW

Published 20 October 2025