Taxpayers and the PCRT

In today’s complex and fast-changing tax environment, choosing the right tax advisor is critical for protecting your business from unnecessary risk. One key, but often overlooked measure for assessing an advisor’s quality is the Professional Conduct in Relation to Taxation (PCRT) code of conduct.

While PCRT is aimed primarily at tax professionals, it matters just as much to clients. Understanding what PCRT stands for can help Finance Directors, CFOs, and business owners make better choices, manage tax risk, and in turn hopefully reduce exposure to tax disputes, penalties, and reputational harm.

What is the PCRT?

It is a code that sets out the ethical and professional standards that tax advisers in the UK are expected to follow.

At its heart, PCRT builds on five fundamental principles:

Integrity: Being honest and straightforward in all dealings.
Objectivity: Remaining unbiased and avoiding conflicts of interest.
Professional competence and due care: Maintaining skills and delivering work diligently.
Confidentiality: Protecting client information.
Professional behaviour: Complying with laws and avoiding actions that bring discredit to the profession

It’s not just about general ethics: PCRT specifically addresses how tax advice should be given. It requires that tax planning:

Has a credible basis in law,
Reflects the true commercial reality of transactions,
Is not contrived or abusive,
And that full facts are disclosed to HMRC where appropriate.

The aim is simple: improving the standards of tax advice in the UK and in turn promote responsible, lawful tax behaviour that supports the integrity of the tax system.

Who must follow the PCRT?

The PCRT is issued jointly by several leading UK professional bodies, including:

Association of Accounting Technicians (AAT),
Association of Chartered Certified Accountants (ACCA),
Association of Taxation Technicians (ATT),
Chartered Institute of Taxation (CIOT),
Institute of Chartered Accountants in England and Wales (ICAEW),
Institute of Chartered Accountants of Scotland (ICAS),
Society of Trust and Estate Practitioners (STEP).

If a tax adviser is a member of one of these bodies, they are bound to comply with PCRT. Failure to do so can lead to disciplinary action, including fines, suspension, or expulsion from the professional body.

Importantly, PCRT applies whether the adviser works in practice (advising external clients) or in business (such as an in-house FD providing tax advice to their own company).

What about unregulated advisors?

Remarkably, anyone can call themselves a "tax consultant" without needing formal qualifications or professional membership.

Advisers who are not members of one of the seven PCRT professional bodies are not formally bound by the code. However, HMRC expects all tax agents and advisors, regulated or not, to observe high standards of conduct.

HMRC’s own "Standard for Agents" sets out expectations that mirror the ethical foundations of the PCRT. HMRC has explicitly recognised PCRT as setting appropriate standards for professional behaviour in tax matters.

In short: even if an adviser isn’t a member of a professional body, HMRC will still hold them to PCRT-style expectations, and will act against agents who fall short.

Why taxpayers need to engage with PCRT

While PCRT is a code for advisers, its benefits flow directly to clients. Being aware of the standards your adviser should meet helps protect your business in several important ways.

1. Minimising risk of HMRC enquiries

Tax returns and claims prepared in line with PCRT standards are less likely to trigger HMRC enquiries (or improve the outcomes for those enquiries that are raised). That’s because PCRT-compliant advisers are required to act transparently and avoid aggressive, artificial interpretations of tax law.

Conversely, advisers who cut corners or stretch the rules create a significant risk of poor HMRC investigation outcomes - something that is costly, time-consuming, and stressful.

2. Avoiding heavy penalties

Errors in tax returns, even innocent ones, can lead to substantial financial penalties. HMRC penalties for inaccuracies can be as high as:

30% of the tax due for carelessness,
Up to 70% for deliberate errors,
Up to 100% where there is deliberate concealment.

Remember, it is the taxpayer, not the agent, who signs (and bears responsibility for) the tax return. Under self-assessment, you are self-assessing that your tax return is complete and accurate and that you have the books and records to support it.

Choosing an adviser who follows PCRT reduces the risk of filing incorrect or misleading information, and therefore the risk of penalties. Even if a genuine mistake occurs, being able to show that reasonable care was taken (such as by relying on properly qualified advice) can reduce or eliminate penalties.

3. PCRT in point: R&D tax relief abuse

One of the clearest examples of the dangers of poor tax advice is the R&D tax credits arena.

In recent years, HMRC has uncovered widespread issues with fraudulent or exaggerated R&D tax claims. Some advisers aggressively marketed R&D tax claims, often promising businesses significant refunds without properly assessing whether the activities qualified under the legislation.

In 2022 alone, HMRC identified over £300 million in suspected fraudulent R&D claims. This led to enhanced compliance checks, delays in payouts, and in some cases, investigations into businesses that unknowingly submitted invalid claims.

Businesses that trusted poor advisers found themselves liable for repaying claims, paying penalties, and dealing with damaging HMRC enquiries - all because their adviser failed to meet professional standards.

Advisers adhering to PCRT would have taken the time to properly assess eligibility, document claims carefully, and explain risks openly, thus helping to protect clients from such fallout.

4. Protecting your reputation

Tax compliance is increasingly a public issue. Businesses associated with aggressive tax schemes can suffer reputational damage, affecting relationships with investors, customers, and regulators. In extreme cases HMRC also publish (i.e. name and shame) taxpayers who have deliberately got their tax wrong.

Whilst there are never any guarantees, using an adviser who follows PCRT principles is a step you can take to help ensure that your tax affairs are ethical, defensible, and aligned with good governance practices.

5. Assurance and professional accountability

If you work with a PCRT-bound adviser, you benefit from additional layers of protection:

The adviser is required to hold professional indemnity insurance,
They are bound to have Anti-Money Laundering processes in place
You have a formal complaints and disciplinary process available through the adviser’s professional body,
The adviser is expected to maintain up-to-date technical knowledge through continuous professional development.

Unregulated advisers may not offer the same level of safeguards.

Questions to ask your adviser

When appointing a tax adviser, consider asking them:

Are you a member of a professional body bound by the PCRT?
How do you ensure your advice complies with ethical standards?
What steps do you take to assess the legal basis of any tax planning you recommend?
Do you hold professional indemnity insurance?
If they are not a member of a regulatory body, ask them if they have registered with HMRC for Anti-Money Laundering supervision

Advisers committed to high standards will welcome these questions, and your business will be better protected as a result.

Conclusion

The PCRT isn’t just a code for advisers - it’s a vital protection for clients. Understanding the PCRT helps taxpayers, finance teams, and business owners choose advisers who deliver robust, lawful, and responsible tax advice. It also helps protect businesses from the real-world risks of poor advice: HMRC enquiries, financial penalties, and reputational harm.

In a tax environment where the stakes are high and the wrong advice can have lasting consequences, choosing an adviser who operates to PCRT standards is not just wise - it’s essential.