Relazer Company Limited is a Nigerian company incorporated in 2014. The company commenced business in 2015 as a major distributor of hair relaxers for women of all ages. The company’s accounting year runs from January 1 to December 31 of every year. On June 3, 2025, the company submitted it’s 2024 financial statements and relevant tax returns to the tax authority (TA) on TaxPro Max. During the desk review of the tax returns, Tax Manager 1 (TM1) of the TA discovered some anomalies in the tax returns, so these were considered incomplete. The company was asked to provide additional documents and also offer some explanations in respect of the gaps noticed in the returns vide a letter Reference TA/DR/MTO/2025/61/TIN 0001 of June 28, 2025. The company failed to offer timely response on the request of the TA, which prompted the tax audit department to send a notice to conduct an audit exercise to the Chief Executive Officer of Relazer Company Limited. The letter of intent for the tax audit, Reference No TA/MTO/2025/67/TIN 0001, was dated July 29, 2025. The TA pleaded for the cooperation of the management and staff of the company on the audit exercise to be carried out in the taxpayer’s premises between August 21 and September 4, 2025. The field audit work indicated a material overstatement of expenses and capital allowances claimed over the years. This understatement of total profits have resulted in a shortfall in the tax payable of over N50 million for three years. These findings were communicated to the company’s management, followed by a request for additional documents. The response from the company revealed that the understatement of profit had been on for many years, so an investigation into the affairs of Relazer Company Limited was initiated vide a letter Reference No. TA/INV/2025/TIN 0001, addressed to the Chief Executive Officer by TA on October 2, 2025. The tax investigation was fixed for October 30 to November 15, 2025. The Chief Executive Officer of Relazer Company Limited recently appointed your firm – Babs & Co. (Chartered Accountants) as the new tax consultant and handed over to you all the correspondences received from TA and financial documents that may be of assistance in discharging your duties. The Chief Executive Officer does not understand the enormous task ahead and what tax audit and investigation entail, he merely thought the tax officials can be persuaded and “talked to”. His intention was to take the TA to court, if they refused to accede to the company’s requests. 121 Whilst reviewing the financial records and tax returns of the company, the following information came to limelight: Year ended December 31: 2022 2023 2024 N’000 N’000 N’000 Gross turnover 460,000 520,000 644,000 Operating profit before tax 160,600 195,800 260,400 After deducting: Depreciation and amortisation 42,000 62,000 63,000 Donations to social clubs 2,600 1,900 4,800 Provision for assets impairment 4,200 3,200 1,900 Stamp duties on increase in share capital - - 3,600 Rent – long lease - - 16,800 Unrealised losses on foreign exchange transactions 2,200 - 1,500 Realised losses on foreign exchange transactions 2,750 3,952 4,610 Travelling expenses incurred for the director’s relatives 9,800 12,000 12,500 Investment allowance on motor vehicles 5,960 Other information made available from the company’s prior year capital allowances computation and assets register were: (i) TWDV of existing assets Assets Plants and machinery Motor vehicles Office/solar equipment Furniture and fittings N N N N TWDV b/fwd to 2023 YOA 10 1,640,000 525,000 480,000 No of years remaining 0 2 3 4 No of items 1 1 4 10 (ii) Additions during the accounting years Assets Acquired Plants and machinery Motor vehicles Office/solar equipment Furniture and fittings N N N N March 31, 2022 - 10,600,000 - - July 31, 2023 - - 5,960,000 - February 30, 2024 - 9,500,000 - 720,000 September 30, 2024 - - 3,160,000 - 122
The revised total profit and taxes payable for the relevant years of assessment
(i) The objectives of tax audit (3 Marks) (ii) Distinction between tax audit and tax investigation (3 Marks)
Revise this question
Assessable profit, total profit and the company tax computation › Format of the computationTax audit and tax investigation › Audit and investigation comparedSuggested answer
BABS & Co. (Chartered Accountants) Date: …. The Chief Executive Officer Relazer Company Limited Dear Sir, RE: Tax Investigation by the Federal Inland Revenue Service (FIRS) We refer to our appointment as tax consultants to Relazer Company Limited for the purpose of providing professional advice in respect of the tax investigation on your company by FIRS. Our comments are as follows:
(a) The revised computations of total profit and income tax payable for 2023 to 2025 years of assessment YOA 2023 2024 2025 N N N Total profit 213,660 268,735 359,894 Companies income tax 64,098.00 80,620.50 107,968.20 Tertiary education tax 6,642.00 8,247.00 11,113.80 Total tax 70,740.00 88,867.50 119,082.00 Minimum tax 2,300 2,600 3,220 The companies income tax for the relevant years of assessment are based on normal profits since the minimum tax computed above are lower. Please see appendix 1 for details.
(b) i. The objectives of tax audit The primary objectives of tax audit are to enable the tax auditors determine whether or not:
• adequate accounting books and records exist for the purpose of determining the total profit or loss of the taxpayer and the related tax payable;
• the tax computations submitted to the tax authority by the taxpayer agree with the underlying records; and
• all applicable tax legislations have been complied with. 131 The secondary objectives are to:
• provide for an avenue to educate taxpayers on various provisions of the tax laws;
• discourage tax evasion;
• detect and correct accounting and / or arithmetic errors in tax returns;
• provide feedback to the management on various provisions of the law and recommend possible changes;
• identify cases involving tax fraud and recommend them for investigation;
• forestall taxable persons’ failure to render tax returns;
• forestall taxable person’s rendering incomplete or inaccurate returns; and
• encourage voluntary compliance by taxpayers.
ii. Distinction between tax investigation and tax audit
• Tax investigation is called for when there are problems in, for example, an organisation, either affecting the whole or segment of the organisation. Such could be required when a large fraud is suspected.
• In an investigation, the scope of work is wider than that of a tax audit. The details of checking and depth of the work will also likely be more than what is required for an audit exercise.
• Tax investigation is like any other form of investigation. It is not carried out on routine basis as that of an audit.
• Tax investigation would be carried out when a taxpayer is suspected to have committed fraud. Suspected cases of tax evasion could lead to investigation.
• Tax investigation is conducted by tax inspectors who have special training and competence in investigation techniques. They can request for assistance of police investigators and enforces, if necessary. These are not required for tax audit.
• The principal aim of investigation is to expose all the circumstances of fraud or tax evasion and to obtain evidence for possible prosecution. Tax investigators have been given greater power than tax auditors. They can seal up a business premises to facilitate their work and obtain all the documents needed to substantiate the evidence of tax evasion and fraud.
• Tax audit is legally required periodically, to confirm the accuracy of the self-assessment of a taxpayer. Tax investigation may not be required for same taxpayer for several years. 132 Please feel free to contact us if you need further clarification on any of the above. Yours sincerely, For: Babs & Co. (Chartered Accountants) Romoke Atanda Audit Partner Appendix 1: Revised total profit and companies income tax payable for the relevant years of assessment YOA 2023 2024 2025 N’000 N’000 N’000 Gross turnover 460,000 520,000 644,000 Operating profit before tax 160,600 195,800 260,400 Add: Depreciation and amortisation 42,000 62,000 63,000 Donations to social clubs 2,600 1,900 4,800 Stamp duties on increase in share capital - - 3,600 Rent - long term lease - - 16,800 Private travelling expenses 9,800 12,000 12,500 Provision for assets impairment 4,200 3,200 1,900 Investment allowance on motor vehicle - - 5,960 Unrealised loss on exchange transactions 2,200 - 1,500 Adjusted profit/ assessable profit 221,400 274,900 370,460 Deduct: Capital allowance (w1) (7,740) (6,165) (10,566) Total profit 213,660 268,735 359,894 Companies income tax @ 30% 64,098.00 80,620.50 107,968.20 Tertiary education tax @ 3% of assessable profit 6,642.00 8,247.00 11,113.80 Total tax 70,740.00 88,867.50 119,082.00 Minimum tax @ 0.5% of turnover less franked investment income 2,300 2,600 3,220 133 (W1) Computation of capital allowances Plant and machinery Motor Furniture vehicles and fittings Total I. A. 50 50 50 25 A.A. 25 25 25 20 N’000 N’000 N’000 N’000 N’000 2023 YOA TWDV b/fwd 10 1,640 525 480 Additions - 10,600 - - 10 12,240 525 480 I. A. - (5,300) - - 5,300 A.A. - W2(2,145) W2(175) W2(120) 2,440 7,740 2024 YOA TWDV b/fwd 10 4,795 350 360 Additions - - 5,960 - 10 4,795 6,310 360 I. A. - - (2,980) - 2,980 A.A. - W2(2,145) W2(920) W2(120) 3,185 6,165 2025 YOA TWDV b/fwd 10 2,650 2,410 240 Additions - 9,500 3,160 720 10 12,150 5,570 960 I. A. - (4,750) (1,580) (180) 6,510 A.A. - W2 (2,513) W2(1,315) W2(228) 4,056 10,566 TWDV c/fwd 10 4,887 2,675 552 (W2) Annual allowances (A.A) on old and new assets
(i) Motor vehicle 2023 YOA N Old motor vehicle: N1,640,000 2 = 820,000 New motor vehicle: I.A. = N10,600,000 x 50% = N5,300,000 A.A. = N10,600,000 – 5,300,000 4 = N5,300,000 1,325,000 4 Total 2,145,000 134 Office / solar equipment 2024 YOA A.A. on old assets 2,145,000 2025 YOA N A.A. on old assets 1,325,000 New assets: additions = N9,500,000 x 50% I.A. = N4,750,000 = N9,500,000 – 4,750,000 4 N4,750,000 = 1,187,500 Total 2,512,500
(ii) Office equipment 2023 YOA N I.A. = N525,000 3 = 175,000 2024 YOA Old assets N525,000 3 = 175,000 New assets: additions I.A. = N5,960,000 x 50% N2,980,000 A.A. = N5,960,000 – 2,980,000 4 = N2,980,000 = 745,000 Total 4 920,000 2025 YOA N Old assets A.A. 920,000 New assets: additions I.A. = N3,160,000 x 50% = N1,580,000 A.A. = N3,160,000 – 1,580,000 4 = N1,580,000 4 = 395,000 Total 1,315,000 135
(iii) Furniture and fittings 2023 YOA N A.A. old assets = N480,000 4 = 120,000 2024 YOA A.A. on old assets N360,000 3 = 120,000 2025 YOA N A.A. on old assets N240,000 2 = 120,000 New assets: additions I.A. = N720,000 x 25% N180,000 A.A. = N720,000 – 180,000 5 = N540,000 5 = 108,000 Total 228,000
Examiner’s Report The question is divided into two parts. The first part tests the candidates’ understanding of the provisions of Companies Income Tax Act Cap C21 LFN (CITA) 2004 (as amended) in respect of computations of total profit and tax liabilities. The second part tests the candidates’ knowledge of audit and investigation. This being a compulsory question, all the candidates attempted the question. Candidates demonstrated a fair understanding of the question and performance was average. The commonest pitfall was the inability of some candidates to identify correctly the allowable and disallowable expenses in the computations of total profit and tax liabilities of a company. Candidates are advised to familiarise themselves with issues concerning computations of companies income tax by reading extensively the Institute’s Study Text, other relevant textbooks, the CITA 2004 (as amended), and relevant Finance Acts when preparing for future examination. 136
Marking Guide Marks Marks a. Computations of revised total profit and taxes payable for the relevant assessment years Body of the letter: Addressee and heading 1/2 Opening paragraph 1/2 Identification of 2023 – 2025 YOA 1/2 Total profit (1/2 x 3) 11/2 Total tax (1/2 x 3) 11/2 Minimum tax (1/2 x 3) 11/2 Appendix 1: Depreciation and amortisation (1/4 x 3) 3/4 Donation to social clubs (1/4 x 3) 3/4 Stamp Duties 1/4 Rent – long term lease 1/4 Private traveling expenses (1/4 x 3) 3/4 Provision for impairment (1/4 x 3) 3/4 Investment allowance 1/4 Unrealised loss on Exchange (1/4 x 2) 1/2 Adjusted profit (1/2 x 3) 11/2 Capital allowance (1/4 x 3) 3/4 Total profit (1/4 x 3) 3/4 Income tax (1/4 x 3) 3/4 Tertiary education tax (1/4 x 3) 3/4 W1 computation of capital allowances: 2023 YOA TWDV B/fwd (1/4 x 4) 1 Additions to motor vehicle ¼ I.A. (motor vehicle) ¼ A.A. (1/4 x 3) ¾ Total of capital allowances ¼ 2024 YOA TWDV B/fwd (1/4 x 4) 1 Additions to office solar ¼ I.A. of office solar ¼ A.A. (1/4 x 3) ¾ Total of capital allowances ¼ 2025 YOA TWDV B/fwd (1/4 x 3) ¾ Additions (1/4 x 3) 3/4 I.A. (1/4 x 3) 3/4 A.A. (1/4 x 3) 3/4 Total of capital allowances ¼ TWDV (1/4 x 4) 1 24 137
bi. Objectives of tax audit 1/2 mark for each objective of tax audit, subject to a maximum of 6 points 3 bii. Distinction between tax investigation and tax audit 1/2 mark for each distinction, subject to a maximum of 6 points 3 Total 30