Preventing Facilitation of Tax Evasion: An Employee's Guide

A member of your finance team helps a long-standing client restructure an invoice so it "looks cleaner" for their books. A salesperson agrees to a supplier's request to split a contract into smaller payments to keep them under a reporting threshold. Neither one sets out to break the law — but if either transaction is really designed to help someone dodge tax they owe, the business could be criminally liable, even though no director or owner knew a thing about it. That is the practical reality created by the UK's Criminal Finances Act 2017, and it is why every employee in a finance, sales, or client-facing role needs to understand it, not just the compliance team.

What the Criminal Finances Act 2017 actually created

The Criminal Finances Act 2017 introduced two new corporate criminal offences, set out in Part 3 of the Act, which came into force on 30 September 2017:

• The UK tax evasion facilitation offence (section 45) — failing to prevent someone associated with your business from criminally facilitating another person's evasion of UK tax.
• The foreign tax evasion facilitation offence (section 46) — the equivalent offence for the criminal facilitation of tax evasion in another country, where certain UK-connection tests are met.

Both offences apply to "relevant bodies" — companies and partnerships of any size, in any sector — not just banks or large corporates. And critically, both are strict liability corporate offences: the organisation can be prosecuted even if senior management had no knowledge of, and did not authorise, what happened. That single design choice is what makes this legislation so relevant to everyday staff, because it shifts the focus from "did the board know?" to "did the organisation have reasonable systems in place to stop this happening?"

The three stages that make up the offence

For a corporate offence to be committed, three separate things need to happen, each involving a different person:

• Stage one — tax evasion. A taxpayer (an individual or another company) commits criminal tax evasion, not just an innocent mistake on a return.
• Stage two — criminal facilitation. A person "associated" with your organisation — an employee, agent, or anyone else performing services for or on behalf of the business — criminally facilitates that tax evasion. This is itself a criminal act, such as being knowingly concerned in, or taking steps with a view to, the fraudulent evasion of tax.
• Stage three — failure to prevent. Your organisation failed to prevent the associated person from carrying out that facilitation.

The organisation does not need to have benefited from the evasion, and does not need to have known it was happening. If an employee facilitated tax evasion while acting on the business's behalf, and the business cannot show it had reasonable procedures in place to stop that, the offence can be made out.

What "facilitation" looks like in practice

"Facilitation" is a broad, deliberately wide-reaching concept. It does not require an employee to personally evade tax — only to knowingly help someone else do so. In a workplace setting, this can look surprisingly mundane:

• A sales or account manager agreeing, at a client's request, to invoice inaccurately — for example under-recording the value of goods or services, or issuing invoices to a different entity than the one that actually received them.
• A finance or accounts payable employee processing payments they know (or strongly suspect) are being structured purely to disguise income from a tax authority.
• A client-facing employee advising a customer, informally, on how to structure a transaction "to save them some tax" in a way that crosses from legitimate planning into concealment.
• Anyone turning a blind eye to a supplier or client's request to falsify paperwork, backdate documents, or route payments through an unrelated third party.

The common thread is intent: genuine, good-faith tax planning and legitimate commercial flexibility are not caught by the Act. What is caught is a deliberate or knowing act that helps another person or business cheat the tax authorities — and an employee does not need to be a tax specialist to fall foul of it. This is closely related to the wider "failure to prevent" model of corporate liability; readers who want the fraud-specific version of this obligation should see our guide to the failure to prevent fraud offence, which works on the same logic but for fraud generally.

The "reasonable prevention procedures" defence

The one defence available to an organisation is to show that, at the time the facilitation took place, it had reasonable prevention procedures in place — or that it was not reasonable in the circumstances to expect any procedures at all. HMRC's published guidance on the corporate offences deliberately mirrors the six-principles framework first used for the Bribery Act 2010's adequate procedures defence, adapted for tax evasion facilitation risk:

• Risk assessment — understanding where in the business tax evasion facilitation risk actually sits (which teams, which counterparties, which transaction types).
• Proportionality of risk-based prevention procedures — controls that match the level of risk, rather than a generic policy nobody reads.
• Top-level commitment — senior management visibly owning the issue, not delegating it entirely to compliance.
• Due diligence — checks on the people and businesses the organisation deals with, particularly higher-risk agents, introducers, and intermediaries.
• Communication (including training) — making sure staff actually know what facilitation looks like and what to do if they spot it.
• Monitoring and review — revisiting the procedures over time as the business and its risks change.

For employees, principle five is the one that matters day to day: if your organisation has not trained you to recognise the red flags below, that is itself a weakness in its defence. Our broader anti-bribery and corruption workplace guide covers the original Bribery Act version of this six-principles framework in more depth, which is worth reading alongside this one since many businesses run both policies together.

Red flags for finance, sales, and client-facing staff

You don't need to be able to prove tax evasion to raise a concern — you only need a reasonable suspicion. Watch out for requests or patterns such as:

• A client or supplier asking for an invoice to be issued to a different name, entity, or country than the one actually receiving the goods, services, or payment.
• Pressure to split a single transaction into several smaller ones, with no commercial reason, particularly around a reporting or disclosure threshold.
• Requests to backdate, undated, or "informally amend" contracts, invoices, or delivery notes after the fact.
• Payment instructions that route funds through a third party, an unrelated personal account, or a jurisdiction with no obvious connection to the deal.
• A client or supplier explicitly asking you to keep a side-arrangement "off the books" or out of formal correspondence.
• Unusual insistence on cash, or on payment methods that are harder to trace, for transactions that would normally be invoiced and paid through standard channels.
• Comments — even informal or joking ones — that a transaction is being structured specifically to keep it "away from the taxman."

None of these automatically means tax evasion is taking place. But each one is a prompt to pause, ask questions, and escalate through your organisation's whistleblowing or compliance reporting line rather than quietly going along with the request.

What's at stake

Conviction for either offence carries an unlimited fine for the organisation, alongside the reputational damage, loss of public sector contracts, and regulatory consequences that typically follow. Individual employees who knowingly facilitate tax evasion can also face personal criminal liability under separate, long-standing tax evasion and fraud offences — this is not a purely corporate risk. Given HMRC's continued focus on these offences, the practical protection for both the business and the individual is the same: understand what facilitation looks like, follow your organisation's procedures, and speak up when something doesn't add up. Staff who work across compliance-adjacent areas often benefit from structured CPD courses that build this kind of regulatory awareness into everyday professional judgement, rather than treating it as a one-off training session.

FAQ

Does this only apply to large companies and banks?

No. The Criminal Finances Act 2017 applies to relevant bodies of any size and in any sector, from sole-trader partnerships to multinational groups. Smaller organisations are not exempt, though HMRC's guidance recognises that what counts as "reasonable" procedures will scale with the size and risk profile of the business.

What's the difference between the UK and foreign tax evasion offences?

Section 45 covers facilitation of UK tax evasion and applies regardless of where the business or the associated person is based. Section 46 covers facilitation of tax evasion under a foreign country's tax law, and applies where the business has a UK connection — for example, being incorporated in the UK or carrying on part of its business here.

Can I be personally prosecuted, or is it only the company at risk?

The corporate offence targets the organisation, but an employee who knowingly facilitates tax evasion can be separately prosecuted under existing individual criminal offences, such as cheating the public revenue or being knowingly concerned in fraudulent evasion of tax. The corporate offence does not replace individual liability.

What should I do if I suspect a client or supplier is asking me to help them evade tax?

Don't act on the request and don't tip off the client that you suspect wrongdoing. Raise it through your organisation's internal reporting, compliance, or whistleblowing channel as soon as possible, and keep a record of what was asked and when.

Understanding where facilitation risk sits in your day-to-day role is one of the most practical pieces of compliance knowledge you can build. Learnsignal's CPD courses help finance, accounting, and business professionals stay current on exactly this kind of regulatory obligation, so you can spot the warning signs before they become a problem for you or your organisation.