Advanced Taxation (UK) · Legitimate tax planning measures

Tax Avoidance, Tax Evasion and Tax Planning Principles

Updated 11 October 2026 · Fact-checked

Tax planning uses reliefs and rates as Parliament intended. Tax avoidance follows the letter of the law but defeats its purpose, and can be countered by the GAAR. Tax evasion is deliberately hiding or misstating facts to pay less tax, and is a crime. In ATX you advise on the first, warn on the second, refuse the third.

Understand Tax Avoidance, Tax Evasion and Tax Planning Principles

Every client wants to pay less tax. Your job is to help them do it within the law and within professional ethics. The three terms sit on a line from acceptable to criminal.

Tax planning (or mitigation) means arranging affairs to use reliefs, allowances and rates in the way Parliament meant. Examples: using the annual exempt amount of £3,000, making pension contributions, using ISAs, or timing a disposal to fall in a lower-rate year. Nothing is hidden and the commercial reality matches the tax result.

Tax avoidance means arrangements whose main purpose is a tax advantage that goes against the intention of the legislation. They often work on the wording but not the spirit, and may include artificial steps with no commercial purpose. The UK General Anti-Abuse Rule (GAAR) allows HMRC to counteract tax advantages from abusive arrangements. A test often used is whether the arrangement is a reasonable course of action in relation to the relevant tax provisions. Related regimes, such as disclosure of tax avoidance schemes (DOTAS), add reporting duties.

Tax evasion means deliberately giving false information or concealing facts to reduce tax. Examples: leaving out income, claiming false expenses, backdating documents. It is a criminal offence, and the penalties include fines and prison. The key test is dishonesty or deliberate concealment.

The ethical limits come from the ACCA Code of Ethics: integrity, objectivity, professional competence and due care, confidentiality, and professional behaviour. You must not assist evasion. You should tell the client the risks of aggressive schemes. If a client refuses to correct an error, you consider ceasing to act and your reporting duties, such as money laundering rules. Always get the facts right, advise on the basis of them, and record your advice.

Key rules to remember

Planning vs avoidance vs evasion: Planning = within the law and its purpose; Avoidance = within the letter, against the purpose; Evasion = illegal, deliberate concealment; Use this line to classify any scenario quickly.
GAAR idea: Tax advantage + abusive arrangement → HMRC can counteract the advantage; Abusive means not a reasonable course of action in relation to the relevant provisions. Do not say all avoidance is caught.
Evasion test: Deliberate false statement or concealment = evasion; Innocent error is not evasion, but it still needs correcting.
Annual exempt amount (CGT): £3,000 per individual; A standard planning use: spread gains between spouses or tax years.
Reliefs cap: Higher of £50,000 or 25% of income; Planning using reliefs can be restricted by this cap unless otherwise restricted.
VAT late payment penalty: Up to 15 days: none; 16 to 30 days: 3%; over 30 days: 6% plus daily penalty at 10% annual rate; Shows the cost of non-compliance; the tax tables give these figures.

How to solve Tax Avoidance, Tax Evasion and Tax Planning Principles questions

Use this method for any requirement on planning, avoidance, evasion or ethics.

1Read the requirement. Note whether you must explain, classify, advise or compare.
2Identify the facts that show the client's purpose, such as commercial reasons, artificial steps or concealment.
3Classify each action as planning, avoidance or evasion, with a reason tied to the facts.
4For avoidance, discuss the GAAR, HMRC challenge, possible penalties, interest and reputational risk.
5For evasion, state it is criminal, say you cannot assist, and refer to the Code of Ethics and any reporting duty.
6Give a practical alternative: a legitimate planning route that meets the client's aim.
7Quantify the saving using the tax tables if figures are given, and show workings.
8Conclude with a clear recommendation and the professional steps you will take, such as documenting advice.

Quickest way: Three-question classification

When to use it: Short scenario requirements where you must label an action fast.

Is anything hidden or false? If yes, it is evasion.
If nothing is hidden, does it follow the purpose of the relief with real commercial substance? If yes, it is planning.
If it works only on the wording and has artificial steps, it is avoidance with GAAR risk.
Write one sentence of reasoning from the facts, then the ethical action you will take.

Common mistakes in Tax Avoidance, Tax Evasion and Tax Planning Principles

Treating avoidance and evasion as the same thing.
Both reduce tax and the words sound alike.
Fix: State that avoidance is legal but may be challenged, while evasion is criminal and involves dishonesty.
Saying all tax avoidance is illegal or caught by the GAAR.
Overstating the rule.
Fix: Say the GAAR targets abusive arrangements only. Ordinary planning using reliefs as intended is not abusive.
Ignoring professional ethics and just calculating the saving.
Focus on numbers over professional skills marks.
Fix: Always add a paragraph on integrity, the client's duty to be honest and your options, including ceasing to act.
Treating an innocent error as evasion.
Not separating deliberate from careless acts.
Fix: Say an innocent error should be disclosed and corrected promptly. Evasion needs deliberate concealment.
Recommending a scheme without noting risks.
Seeing only the tax saving.
Fix: Mention HMRC enquiry, extra tax, interest, penalties and reputation, and compare with a lower-risk option.

Worked examples

Example 1

Your client, Mira, has a gain of £15,000 on shares and her husband Dev has no gains this year. She proposes to transfer half the shares to Dev before sale, with the sale proceeds going to Dev. Another client, Raj, suggests leaving £20,000 of rental income off his tax return because HMRC 'will not notice'. Classify both and advise.

Show the solution

Mira: transfers between spouses are a standard relief and Dev genuinely owns the shares and proceeds. Nothing is hidden.
This uses Dev's own £3,000 annual exempt amount and possibly a lower CGT rate, which is the use of rules as intended. It is legitimate tax planning.
Raj: omitting income is deliberate concealment. It is tax evasion, a criminal offence.
You cannot assist. Under the Code of Ethics you must act with integrity and advise him to disclose the income and correct his return.
If he refuses, you should consider ceasing to act and your reporting obligations, and keep records of the advice.

Answer: Mira's plan is legitimate tax planning, provided the gift to Dev is genuine and unconditional. Raj's proposal is tax evasion. Advise disclosure, refuse to be involved, and consider ceasing to act if he will not correct it.

Example 2

A client, Tara, plans an arrangement of several circular transactions with no commercial purpose that produces a large tax loss, solely to cut her income tax bill. She says it technically complies with the wording of the legislation. Advise her.

Show the solution

Identify the purpose: the main aim is a tax advantage, and the steps are artificial.
Classify: it follows the letter but probably not the purpose, so it is tax avoidance, not evasion, as it would be fully disclosed.
Apply the GAAR: HMRC may counteract the advantage if the arrangements are abusive, meaning not a reasonable course of action in relation to the provisions.
Note risks: tax and interest on underpaid tax at 8.50% from the tax tables, possible penalties, enquiry costs, and disclosure duties under DOTAS where applicable.
Recommend an alternative: genuine planning such as pension contributions within the annual allowance or ISA use, with real commercial substance.
Ethics: you must not recommend an arrangement you believe is abusive without explaining the risk, and you should document your advice.

Answer: The arrangement is aggressive tax avoidance and is exposed to the GAAR. Advise against it, explain the interest, penalty and reputational risks, and recommend legitimate planning such as pension contributions and ISAs.

Exam tips

Always classify first, then justify using the facts. A bare label earns few marks.
Add the ethical response in every answer: integrity, advice to disclose, and ceasing to act if the client refuses.
Do not overstate the GAAR. Say it counters abusive arrangements, not all tax saving.
Use the tax tables for any figures, such as the £3,000 exempt amount, the reliefs cap or the 8.50% interest on underpaid tax.
Earn professional skills marks by giving a clear, client-friendly recommendation with a lower-risk alternative.

Practice questions from Legitimate tax planning measures

Tax Avoidance, Tax Evasion and Tax Planning Principles in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Tax Avoidance, Tax Evasion and Tax Planning Principles: frequently asked questions

What is the difference between tax avoidance and tax evasion for ACCA?

Avoidance is arranging affairs to cut tax in a way that works on the wording of the law but may go against its purpose. Evasion is illegal and involves deliberately hiding or misstating facts. Avoidance may be challenged; evasion is a crime.

What is the UK GAAR in simple terms?

It is a rule that lets HMRC counteract tax advantages from abusive arrangements. An arrangement is abusive if it is not a reasonable course of action in relation to the relevant tax rules. It does not catch ordinary planning that uses reliefs as intended.

Can I advise a client on tax avoidance as an ACCA member?

You can advise on legitimate planning. For aggressive avoidance you must explain the risks and not recommend arrangements you believe are abusive. You must never help with evasion.

What should I do if a client refuses to correct a tax error?

Explain the consequences and urge correction. If they still refuse, consider ceasing to act and your legal and ethical reporting duties. Keep a record of your advice.