Two clients ask for help to pay less tax. The first wants the company to buy equipment before year end, so that the capital allowance falls into the year with the larger profit. The second wants to leave a source of income out of the return, because nobody will check. The first is tax planning that no one can fault; the second is a crime.
The exam asks you to tell the two apart, to define each, to give the courts’ view on avoidance, and to compare them in a table.
This topic covers tax planning, tax avoidance and tax evasion, the leading judicial statements, the response of revenue authorities through specific and general anti-avoidance rules, the ways evasion happens in Nigeria, and a full comparison. The previous topic covered tax audit and investigation. The next covers ethics for tax practitioners.
In 30 seconds
Planning: arranging affairs within the law to use the reliefs Parliament intended. Avoidance: arranging affairs to pay the least tax by exploiting loopholes; it is legal to the extent that no law is broken. Evasion: reducing or escaping tax by illegal means such as understating income, overstating expenses, false claims for reliefs, or omitting income.
Courts: no one is bound, morally or otherwise, to arrange affairs to give the revenue the largest possible share (Ayrshire Pullman); tax is an obligation to be met legally, and a legal reduction is not dishonest (FBIR v American International Insurance). Limits: a scheme with form but no substance and no commercial purpose may be set aside. Authorities respond with specific anti-avoidance rules, and then general ones.
Evasion carries prosecution, fines and imprisonment, and no time limit on reopening years.
Key terms in plain English
| Term | What it means |
|---|---|
| Tax planning | Using the reliefs, timing and structures the law offers to reduce tax |
| Tax avoidance | Arranging affairs to pay the least tax possible by exploiting loopholes in the law |
| Tax evasion | Reducing or escaping tax by illegal means, such as fraud or false returns |
| Loophole | A gap or ambiguity in the law that a scheme can exploit |
| Anti-avoidance rule | A rule that blocks a loophole or lets the revenue ignore a scheme |
| Substance over form | Looking at what a transaction really does, not how it is described |
Syllabus check
This topic is in syllabus area A, introduction to taxation, tax administration and ethics (20% of marks). It covers:
- the meaning of tax planning, avoidance and evasion;
- the courts’ attitude and the revenue’s response;
- the differences between avoidance and evasion.
CAMA 2020 and tax avoidance
The Companies and Allied Matters Act 2020 (CAMA 2020) is the company law of Nigeria. The sections below apply to this topic.
| Section | What it says | Link to this topic |
|---|---|---|
| s. 377(1) and s. 378 | Directors prepare financial statements that give a true and fair view | Accounts that hide the real substance of a transaction to cut tax are not a true and fair view, and they push planning into evasion |
| s. 305 and s. 308 | Directors must act in good faith and with the care, diligence and skill of a prudent director | Directors may plan within the law but must not approve returns they know to be false |
The rules in more depth
Tax planning
Tax planning means using, within the law, the choices that the law gives: when to buy an asset, which form of business to use, which reliefs and allowances to claim, how to time income and expenses between years. A planner reads the statute to find what Parliament has allowed, and does so openly. Planning is documented, supported by commercial reasons and leaves the full facts in the return.
Tax avoidance
Tax avoidance arises where the taxpayer arranges his financial affairs to pay the least possible tax. A simple example is avoiding VAT by not buying the goods or services on which it is charged. Other schemes come from a close study of the tax laws, followed by devices that exploit loopholes so that tax is avoided or minimised.
To a large extent, avoidance is legal, because it is done within the limits the laws allow and no law is broken. Two decisions state the position.
- Ayrshire Pullman Motor Services and David M. Ritchie v CIR. The Lord President (Lord Clyde) said that nobody is under any obligation, moral or otherwise, to arrange his legal relations so that the Inland Revenue can take the largest possible amount from his property. The revenue takes every advantage the taxing statutes give it. The taxpayer is equally entitled to be astute, so far as he lawfully can, to prevent the depletion of his means.
- FBIR v American International Insurance Company (Nig.) Plc. Belgore CJ held that tax is an obligation, not a duty in a moral sense. A person is not a bad citizen if he organises his business lawfully to reduce his tax. He may resist any unduly wide reading of a tax law that would increase his burden, and shrewd business sense and legitimate protection of his earnings are not dishonest.
Where avoidance stops
When avoidance schemes are stretched to the limit, the transactions are seen to have form but no substance, because they were entered into only to avoid tax and have no commercial effect. At that point the revenue steps in and may disallow them. High tax rates make elaborate schemes worth the cost, which suggests that widespread avoidance is evidence that the system needs radical reform.
The revenue’s response
- Specific anti-avoidance legislation: when a loophole is found, the revenue asks for a particular rule to block it.
- The taxpayer then looks for another loophole, so specific rules multiply without end.
- General anti-avoidance legislation: because the legislature cannot foresee every scheme, a general rule is considered to catch schemes of a kind not yet seen.
Tax evasion
Tax evasion is a contravention of the tax laws, where a taxable person neglects to pay tax due, or reduces his liability by false or untrue claims in his returns. It involves outright fraud and deceit. In Nigeria evasion on a large scale is through failure to file returns. It is achieved by:
- understating income;
- overstating expenditure;
- making false claims for allowances and reliefs;
- omitting chargeable income from the return.
Avoidance and evasion compared
| Point | Tax avoidance | Tax evasion |
|---|---|---|
| Legality | Legal | Illegal |
| Method | Exploiting loopholes in the law | Deliberate fraud and deceit |
| Result | The minimum tax is paid without breaking the law | The correct tax is not paid, by breaking the law |
| Courts | Supported in decided cases | Not supported |
| Liability | No criminal liability | Prosecution, fines, penalties and sometimes imprisonment |
| Extreme cases | A scheme stretched too far may be disregarded | The revenue frowns on evasion at any level |
| Investigation | None; earlier assessments are not reopened | The revenue investigates and may open earlier years beyond the six-year limit, subject to court approval |
The position from 2026
The concepts and the court decisions apply unchanged under the Nigeria Tax Act 2025 and the Nigeria Tax Administration Act 2025. The revenue authority is now the Nigeria Revenue Service. The Administration Act adds a duty to disclose tax planning arrangements that give a tax advantage (a new or increased relief, a repayment, a reduced or avoided charge, or a deferred payment), and it raises penalties for non-compliance.
For a period ending before 1 January 2026, the Companies Income Tax Act and related rules apply, and for later periods the new Acts.
Worked examples
Example 1: planning, avoidance or evasion? (a) A company buys machinery in December rather than January to claim the allowance a year earlier. (b) A trader leaves out cash sales from his return. (c) A group sets up a company with no staff or business purpose, only to shift profit into a low-tax route.
- (a) Planning: timing within the law, openly declared.
- (b) Evasion: income is omitted from the return.
- (c) Avoidance that is stretched: legal in form, but with no substance and no commercial purpose, so the revenue may disregard it.
Example 2: what the revenue does next. A loophole lets companies deduct a cost twice. It is widely used.
- The revenue asks for a specific rule to block this one loophole.
- Taxpayers find a different gap.
- The legislature considers a general rule to catch similar schemes.
Example 3: advising a client. A client asks you to reduce tax by overstating repairs.
- Overstating expenditure is evasion.
- You decline, explain the consequences, and offer lawful planning, such as claiming all capital allowances due.
How to score full marks
- Define each term in one sentence, then compare in a table of at least five rows.
- Quote a case: Ayrshire Pullman or American International Insurance.
- Give two examples of evasion.
- Say that avoidance is legal but can be disregarded when it has no substance.
Common mistakes in the exam
- Calling all avoidance illegal.
- Giving only definitions and no comparison.
- Forgetting the response of the revenue through anti-avoidance rules.
Quick revision
- Planning and avoidance are legal; evasion is illegal.
- Evasion: understate income, overstate costs, false reliefs, omissions.
- Courts: Ayrshire Pullman, American International Insurance.
- Revenue: specific rules, then general rules.
Practice questions
Questions 1 to 10 are multiple choice. Questions 11 to 13 are written. Try each before opening the answer.
Question 1. Arranging affairs to pay the least tax by exploiting loopholes is:
- Tax evasion
- Tax avoidance
- Tax amnesty
- Tax audit
Show the answer
B. Tax avoidance uses loopholes and is legal if no law is broken.
Question 2. Omitting income from a return is:
- Planning
- Avoidance
- Evasion
- Relief
Show the answer
C. Omission of chargeable income is a way of evading tax.
Question 3. Which is a feature of tax evasion?
- It is legal
- It involves fraud and deceit
- It has no criminal liability
- It is supported by the courts
Show the answer
B. Evasion is illegal and involves fraud or deceit.
Question 4. The Ayrshire Pullman case is about:
- Evasion penalties
- The right of a taxpayer to arrange affairs to reduce tax lawfully
- Residence
- VAT
Show the answer
B. Nobody is bound to arrange his affairs to give the revenue the largest share.
Question 5. When a loophole is exploited the revenue first usually:
- Ignores it
- Passes specific anti-avoidance legislation
- Abolishes the tax
- Pays refunds
Show the answer
B. Specific legislation blocks the particular loophole.
Question 6. General anti-avoidance legislation is considered because:
- The legislature can foresee every scheme
- The legislature cannot foresee every scheme
- Taxes are low
- Courts demand it
Show the answer
B. Specific rules cannot catch every scheme that a determined taxpayer can devise.
Question 7. Which is NOT a way of evading tax?
- Understating income
- Overstating expenditure
- Claiming all capital allowances due
- False claims for reliefs
Show the answer
C. Claiming allowances properly due is lawful planning.
Question 8. A scheme with form but no substance and no commercial purpose:
- Is always upheld
- May be disregarded by the revenue
- Is a crime in all cases
- Is exempt
Show the answer
B. When stretched to the limit, such a scheme may be set aside.
Question 9. Earlier assessments may be reopened beyond six years where there is:
- Avoidance
- Evasion
- Planning
- Late filing only
Show the answer
B. The revenue may investigate evasion and open earlier years, subject to court approval.
Question 10. Large-scale evasion in Nigeria is mainly through:
- Failure to render returns
- Paying too much
- Filing early
- Instalments
Show the answer
A. Failure to render tax returns is the main route.
Question 11 (10 marks). Distinguish tax avoidance from tax evasion. (10 marks)
Question 12 (10 marks). (a) State four ways in which tax evasion may be achieved. (4 marks) (b) Explain the attitude of the courts to tax avoidance. (6 marks)
Question 13 (10 marks). (a) Explain how the revenue responds to avoidance schemes. (5 marks) (b) State when an avoidance scheme may be disregarded. (5 marks)
Model answers
Show the model answer to Question 11
Any five points, 2 marks each, set out as a table:
- avoidance is legal, evasion illegal
- avoidance exploits loopholes, evasion uses fraud and deceit
- avoidance pays the minimum tax without breaking the law, evasion pays less than is due by breaking the law
- the courts support avoidance, not evasion
- avoidance carries no criminal liability, evasion carries prosecution, fines and imprisonment
- an extreme scheme may be disregarded
- evasion is investigated and earlier years may be reopened
Show the model answer to Question 12
(a) Ways (4 marks). Understating income; overstating expenditure; false claims for allowances and reliefs; omitting chargeable income. (1 each)
(b) Courts (6 marks). Avoidance is legal where it is within the law. (1) In Ayrshire Pullman the court said no one is under any obligation to arrange his affairs so as to give the revenue the largest possible share. The taxpayer may be astute to prevent depletion of his means so far as he lawfully can.
(2½) In FBIR v American International Insurance, Belgore CJ said tax is an obligation, that a person who lawfully minimises his tax is not a bad citizen, and that he may resist an unduly wide reading of the law. (2½)
Show the model answer to Question 13
(a) Response (5 marks). The revenue takes steps to block the loophole with specific anti-avoidance legislation; (2) the taxpayer finds another loophole, so specific rules continue; (1) because the legislature cannot foresee every scheme, general anti-avoidance legislation is considered. (2)
(b) Disregard (5 marks). When schemes are stretched to the limit and the transactions have form but not substance; (2) were entered into only to avoid tax; (1) and have no commercial effect. (2)
Spotted a mistake? Tell us and we will check it.
