Tax Tribunals

Solve your tax problems by contacting our tax specialists, with ex-senior HMRC inspectors here to help.

It's free to call us from a landline or mobile on 0800 0016 878, or email

(Non-UK callers may need to call +44 207 101 3845 if you cannot connect to our 0800 number)

The Tax Faculty - The Tax Experts You Need, When You Need Them

HMRC Enquiries & Disputes - An Overview

HMRC contact detailing checks into Individuals, Businesses or Companies can be complex and difficult to resolve without specialist advice and experience.

Whatever your needs, The Tax Faculty can provide the experts you need to successfully keep these checks from spiralling out of control.

All initial consultations are free of charge and should you choose to engage our tax experts, you will receive an award winning service at prices that are affordable to you.

Call us free on 0800 0016 878 or email us at for more information.

Please note, non-UK callers may need to call 0207 101 3845 if your line cannot connect to our 0800 number.


An investigation conducted under Code of Practice 9 (COP9 - through the Contractual Disclosure Facility) is incredibly serious and certainly should not be taken lightly. Unlike most HMRC enquiries, a COP9 investigation covers not just one aspect of tax, but is extended to include any tax or duty that HMRC powers over.

To aid the understanding of such enquiries, we have recently updated our comprehensive guide to Code of Practice 9 Investigations.

As a result, this type of investigation can be intrusive and has a much broader range than a relatively simple compliance check. If you are subject to such an investigation you will be required to defend your behaviour against any suspicions that HMRC have that you have committed tax fraud, or take the opportunity to disclose any tax fraud that you have committed to HMRC.

Due to the serious nature of such an investigation and the suspicion of fraud, we at The Tax Faculty recommend that you contact us before you respond HMRC's opening contact so that our expert HMRC-handling specialists can provide you with the best possible advice on how you should proceed.

Indeed, HMRC themselves recommend that those placed investigation through the COP9 process seek specialist advice rather than rely on their usual accountant, as evidenced by point 1.2 of the COP9 document which is issued with their opening correspondence.

Our experts have many years of experience in both conducting serious fraud investigations for HMRC as senior tax inspectors and also in defending clients from such investigations and allegations of serious fraud. By discussing your circumstances in a non-judgemental atmosphere with our specialists, we can give you detailed advice throughout the process.

Even if you do not eventually use The Tax Faculty, please do seek advice at an early stage. Whether you are an individual who has been accused of tax fraud by HMRC, or you are a private practice whose client has received an opening COP9 letter, please do not ignore the letter or attempt to respond without first seeking advice from professionals with the relevant experience.

We also offer our services to those who already have an existing COP9 investigation. Our experts can assist and give a new perspective on existing investigations, providing a pathway to navigate the investigation to a conclusion.

In addition to dealing directly with individual client investigations, our specialists have a proven track record of assisting independent practices in dealing with investigations into their clients.

It is sometimes overlooked, or not known, that the Contractual Disclosure Facility can also be used if an individual wants to bring their affairs up to date voluntarily and have the protection from criminal proceedings. Our experts can help people to disclose any failures to HMRC and discuss the best options available.

Our experts number industry award-winners for the way in which they handle COP9 investigations, making The Tax Faculty the best place for pragmatic advice. All initial consultations are free of charge as we know how confusing and complex such investigations can be, therefore we want to be sure that we are best placed to assist before you commit to our services.We have also linked a guide to the beginning of a Code of Practice 9 Investigation for your information.

For a free, confidential and non-judgemental consultation call us free on 0800 0016 878 or email us at for more information.

Please note, non-UK callers may need to call 0207 101 3845 if your line cannot connect to our 0800 number.

Have you received a COP9 Letter from HMRC?

Have you or one of your clients received a COP9 letter from HMRC? Before you respond to the letter, please contact us as soon as possible so that we can make sure that you take the necessary steps to ensure that any response is correct, complete and most importantly does not prejudice the future of any resulting investigations.

HMRC have incredibly strict deadlines by which you must reply and your response must be adhere to HMRC's strict criteria, so it is very important that you take expert advice as soon as possible.

Check out our comprehensive guide to Code of Practice 9 Investigations and feel free to contact us for more information.