"Often instructed by senior legal, accounting and financial services professionals"

Chambers & Partners

Winner of the Legal 500 - 'Criminal, Fraud & Licensing Law Firm of the Year'

"One of, if not the best, criminal specialist firms in the country" (Legal 500)

HMRC Civil Tax Investigations

Serious Civil Tax Investigations Services

Kangs Solicitors has a proven track record of successfully representing clients in disputes with the UK tax authorities for over twenty years.

Since 1997 we have been deploying our extensive resources, expertise and skill to advise both corporate and individual clients in complex and often multi-jurisdictional tax investigations.

Our award-winning team of solicitors is nationally recognised for its work in relation to HMRC tax investigations.

Noted expertise in HMRC cases. Extremely well-reputed for advising on high-value matters.

Chambers & Partners | 2020 Edition

Both the leading directories, the Legal 500 and Chambers UK rank the firm in the highest categories for our work in financial fraud and tax investigations.

What is an HMRC Civil Tax Investigation?

A tax investigation is a check that HMRC performs under which it reviews your tax payment and reporting history of any UK-based citizen, employee, or company. HMRC, being responsible for the collection of taxes, possesses the right to perform checks on any individual or business to ensure that they pay the right amount of tax.

HMRC investigation is not limited to Income Tax. The jurisdiction of HMRC includes all taxes, including:

  • Capital Gains Tax
  • Construction Industry Scheme (CIS)
  • Corporation Tax
  • IR35
  • VAT

The type and severity of the investigation to be conducted by the HMRC depends on any individual case. A person or business may go through a serious investigation by HMRC’s Fraud Investigation Service (FIS) under Code of Practice 8 (COP8) or Code of Practice 9 (COP9).

1- Code of Practice 8 tax investigation

HMRC opens COP8 tax investigations if it suspects that the taxpayer deliberately skipped paying a huge amount of tax using complex tax arrangements or structures, involving offshore aspects. The aim of the HMRC’s FIS is to challenge your tax affairs. And ultimately recover tax, interest and penalties. 

2- Code of Practice 9 tax investigation

HMRC’s FIS undertakes a COP9 investigation in the most serious civil tax cases, especially those that involve fraud. For example, the agency may open the case if it suspects that the tax statement is an understatement that indicates the taxpayer’s dishonesty and purpose to commit fraud. 

HMRC offers its Contractual Disclosure Facility (CDF) and provides 60 days to the taxpayers to accept or reject it. By accepting the offer, taxpayers get the chance to disclose any loss of tax to HMRC that has been brought about by deliberate conduct. 

Taxpayers are given 60 days to accept or reject HMRC’s Contractual Disclosure Facility (CDF) offer. The CDF offers taxpayers the chance to disclose any loss of tax to HMRC that has been brought about by deliberate conduct.

How Long Does An HMRC Civil Tax Investigation Last?

The duration of the enquiry depends totally on the type of the HMRC investigation. The HMRC’s opening letter is an ideal way to determine the possible duration of any investigation. 

In some cases, investigations get over after one letter, while in other cases might take months when HMRC consistently requests for more information. If the case involves complex tax structures or large businesses, it might take longer than a year.

Typically, the length of a complex investigation lasts four years. In this period, HMRC can claim the remaining tax or penalties from the taxpayers. However, in cases where the taxpayer has been caught submitting tax returns with mistakes, the process of HMRC investigation can stretch to six years. The time of investigation may go as long as 20 years in case of tax evasion or criminal activity.

HMRC Civil Tax Investigation Defence And Specialist Advice London

HMRC civil tax investigation solicitors at Kangs Solicitors are highly experienced in handling voluntary tax disclosures. They can provide proven HMRC tax investigation advice, comprising of the best strategy and manage the entire investigation on your behalf. 

Our HMRC tax investigation lawyers can advise you on all Civil tax investigations areas of HMRC, including:

1- Civil Evasion and Fraud Tax Investigations

2- Partnership Tax Return Enquiry

Section 12A TMA 1970 Notice Investigations

3- Corporate Tax Evasion

Code of Practice 14 Investigation (Company Tax Return Investigation)

4- Self Assessment Tax Investigations

Code of Practice 11 Enquiry (Local Compliance Offices)

5- VAT and PAYE Investigations

  • VAT Evasion Investigation
  • PAYE Audit Tax Investigation

Call Our Experienced HMRC Civil Tax Investigation Solicitors For Confidential Advice

Our specialist tax investigation team is sensitive to the fact that a HMRC enquiry or investigation can have a significant impact on the operation of a business and on the livelihood of an individual. We aim to minimise the risk of reputational damage and provide practical cost-effective solutions for our clients.

If you have received correspondence from HMRC or you are concerned about your tax affairs, our team of expert tax solicitors can be contacted for confidential and discrete advice as follows:

Our Clients

We act for a wide range of clients in a variety of sectors including payroll companies, the pensions industry and the alcohol trade.

Our clients in HMRC tax investigations include:

  • Corporations and companies
  • LLPs and partnerships
  • SMEs
  • Sole traders
  • Professional advisers – legal, accountancy and financial
  • HNW Individuals.

What Do We Do?

We advise and represent clients in relation to:

Our expertise in relation to HMRC tax investigations is extensive and includes:

How Can Our HMRC Solicitors In London Offer Expert Legal Guidance?

Our experienced team takes a proactive approach to cases by actively engaging with HMRC to achieve positive results without the need to resort to costly litigation and thereby reducing any penalties payable.

We can guide you in relation to:

  • understanding the litigation and settlement strategy of HMRC and advising you accordingly
  • making the appropriate disclosures to HMRC and responding to its on-going queries
  • negotiating with HMRC on your behalf to secure favourable repayment terms and reduced penalties
  • the use of ADR by our qualified mediators as a means of settling tax disputes with HMRC 
  • ensuring that the complex disclosure regime is complied with to the satisfaction of HMRC
  • preserving any immunity from criminal prosecution offered by HMRC
  • appropriate and robust representation before the First-tier Tax Tribunal and Upper Tribunal
  • advice on complex cross-border tax issues and work closely with professional advisers based in foreign jurisdictions

We are knowledgeable and experienced in many of the common and recurring features of a HMRC tax investigations including:

  • existence of undeclared offshore funds and assets
  • under declaration of personal income
  • under declaration of business sales
  • suppression of business turnover
  • non-disclosure of worldwide income
  • allegations of fraud central to the tax dispute

Criminal Liability

We guide clients through the complex process of making disclosure of unpaid tax to HMRC. The process can be time consuming and numerous disclosure reports may be required.

If HMRC considers that full disclosure has not been made or that a serious financial offence has been committed, it has the right to withdraw from the civil regime and pursue both corporate and individual clients on a criminal basis.

Our specialist team of white-collar crime defence solicitors are available to assist in any such investigation and prosecution. We are ranked as one of the leading criminal fraud defence firms in the country. 

HMRC Civil Enforcement

We have extensive experience advising corporate and individual clients in relation to enforcement action taken by HMRC.

We actively negotiate and engage with HMRC on behalf of clients to seek an early cost-effective resolution to any tax dispute and avoid enforcement action.

Often in a personal bankruptcy or corporate insolvency, HMRC is the largest creditor and it seeks to use its powers of enforcement to protect its position. 

Our work in this area includes:

Multi-Disciplinary Team

In addition to our own team of award-winning solicitors, we have long-established working relationships with other professionals who we are often required to work in conjunction with on HMRC tax cases including forensic accountants as well as the leading barristers and QCs in the country.

Who Can I Contact For Help?

Hamraj Kang leads an award-winning team of lawyers nationally recognised for its excellence and expertise in HMRC cases.

We welcome enquiries by telephone or email.

We provide an initial no obligation consultation from our offices in London, Birmingham and Manchester.

Alternatively, we provide initial consultations by telephone or video conferencing.


Hamraj Kang
07976 258171 | 020 7936 6396 | 0121 449 9888

Tim Thompson
020 7936 6396 | 0121 449 9888

John Veale
0161 817 5020  | 020 7936 6396 07989 521 210


    Particularly active in high value financial fraud cases, with notable expertise in ‘boiler room’ cases

    Legal 500

    It is an outstanding firm in defending financial crime cases

    Chambers & Partners

    Frequently represents high-profile individuals

    Chambers & Partners

    Recognised for astute command of financial crime

    Chambers & Partners

    Latest News


    2 Wake Green Road, Moseley
    Birmingham, B13 9EZ

    0121 449 9888


    Level 1, Devonshire House, One Mayfair Place
    Mayfair, London, W1J 8AJ

    020 7936 6396


    76 King Street
    Manchester, M2 4NH

    0161 817 5020