Effect Of Tax Authority In The Prevention And Detection Of Tax Fraud In Nigeria

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Effect Of Tax Authority In The Prevention And Detection Of Tax Fraud In Nigeria


The primary purpose of this study is to examine the effect of tax authority in the prevention and detection of tax fraud in Nigeria. It focuses mainly on tax authority in Ekiti state The project made use of primary data and secondary data. Primary data was generated through the administration of 133 questionnaires and all the questionnaires were returned. Secondary data was collected from journals and records. Responses from the questionnaires were classified accordingly. Frequency and contingency tables were constructed. The study reveals that there is relationship between ineffective, inefficient tax management and tax fraud. The significance of the study is that the outcome of the research will serve as a useful guideline to tax administrators, government and also to tax payers, financial analysts, auditors and company executives who pay taxes.

Table of Content

Preliminary Page(s)

  • Title Page
  • Declaration
  • Approval
  • Dedication
  • Acknowledgement
  • Abstract
  • Table of Content

Chapter One


  • 1.1 Background of the Study
  • 1.2 Statement of the Problem
  • 1.3 Objectives of the Study
  • 1.4 Research Questions
  • 1.5 Hypotheses of the Study
  • 1.6 Significance of Study
  • 1.7 Scope and Limitation of the Study
  • 1.8 Definition of Terms
  • 1.9 Organization of the Study

Chapter Two

Review of Related Literature

  • Introduction
  • 2.2 Probability of Detection and Tax Compliance
  • 2.3 Theories of Tax Compliance
  • 2.4 Reasons For Non Tax Compliance in Nigeria and Tax Compliance
  • 2.5 Changes to Government Policies on Tax Fraud and Compliance
  • 2.6 Awareness of Offences and Penalties and Tax Compliance
  • 2.7 History of Taxation in Nigeria
  • 2.8 International and National Perspective
  • 2.9 Recent Tax Trend in Nigeria

Chapter Three

Research Methodology

  • 3.0 Introduction
  • 3.1 Sources of Data Collection
  • 3.2 Population of the Study
  • 3.3 Sample and Sampling Procedure
  • 3.4 Research Setting
  • 3.5 Instrument for Data Collection
  • 3.6 Validation of the Research Instrument
  • 3.6 Method of Data Analysis

Chapter Four

Presentation Analysis Interpretation of Data

  • 4.1 Introduction
  • 4.2 Data Analysis
  • 4.3 Test of Hypotheses

Chapter Five

Summary, Conclusion and Recommendation

  • 5.1 Introduction
  • 5.2 Summary
  • 5.3 Conclusion
  • 5.4 Recommendation
  • Reference

Chapter One


1.1 Background of the Study

Taxation is not a new word in Nigeria or the world as a whole. In Nigeria, taxation has been in existence even before the coming of the colonial men or the British. Taxation can be defined as the system of imposing a compulsory levy on all income, goods, services and properties of individuals, partnership, trustees, executorships and companies by the government (Samuel and Simon, 2011;Yunusa, 2003). Income tax is one of the major sources of revenue to all government. In Nigeria, it is a factor to be reckoned with in Federal Government’s budget the taxes so collected come back to the taxpayer in form of services. This has over the years encouraged or discouraged some activities in the private sector; though, this depends on whether the policy of the government is towards discouraging or encouraging such companies (Ola, 1999). Taxation is recognized as a very important tool for national development and growth in most societies. It has viewed as a major vehicle for long term development of infrastructures of the state.

With the growth and increasing globalisation of businesses (including the increased mobility of capital and rise of e-commerce), the opportunities for taxpayers to violate tax laws are expanding, prompting the need for the tax administration to continually update and broaden the strategies it uses to deal with this problem.

Tax fraud occurs when an individual or business entity willfully and intentionally falsifies information on a tax return in order to limit the amount of tax liability. Tax fraud essentially entails cheating on a tax return in an attempt to avoid paying the entire tax obligation. Examples of tax fraud include claiming false deductions; claiming personal expenses as business expenses; and not reporting income.

Most developed countries are characterized by a broad base for direct and indirect taxes with tax liability covering the vast majority of citizens and firms. Developing countries, in contrast, are confronted with social, political and administrative difficulties in establishing a sound public finance system. As a consequence, developing and emerging countries are particularly vulnerable to tax fraud activities of individual taxpayers and corporations. This can be considered one of the primary reasons for large differences in the ability to mobilize own resources between developed and developing countries.

Detecting and preventing tax fraud and making sure that it cannot be repeated is not solely the responsibility of tax authority and tax officials. Without the cooperation of general public working in high risk areas, it is very difficult to detect illegal tax malpractice and illegitimate personal gain. Therefore, it is up to all levels of hierarchy in public institutions to create an environment of transparency, ethical conduct and accountability in order to ensure proper handling of the very important issues of prevention, detection and handling of tax fraud cases in among the general taxpayer.

The doctrine describes tax fraud as a form of deliberate evasion of tax which is generally punishable by law. The term ‘tax fraud’ includes situations in which deliberately false statements are submitted, fake documents are produced, etc. Sanctions may include civil or criminal penalties

Finally, the revenue generated by the government from taxation forms a major source of finance to the federal government capital expenditure which is crucial to sustainable economic development. A major challenge to the government in generating this revenue has been the increasing rate of tax fraud offences committed by both tax payers and tax officials.

Therefore tax fraud and other related tax offences are important factors to be considered as they affect both the volume and nature of government finances which is the key to economic development.

1.2 Statement of the Problem

Tax Fraud and other tax offences perpetrated by tax payer heavily harm the economy, lower investment levels and reduce government revenue generation. Anti-tax fraud and tax authority strategies are often not effective enough. Damages done to economy and their budgets as a result of tax fraud can be enormous ranging from financial loss to reduction of economy performance, reputation, credibility and public confidence.

Tax systems in many developing countries are characterized by tax structures being not in line with international standards, by lack of tax policy management, low compliance levels and inappropriate capacities in tax administration. The difference in revenue mobilization also stems from economic conditions (size of the informal sector).

In fact, most developing countries show a trend towards the prevalence of indirect taxation. Many of them rely to a great extent on indirect taxes such as value-added taxes (VAT) with indirect taxes amounting for up to two-thirds of total tax revenues, yet it is not new that, the negative menace of tax fraud deprives governments of revenues needed for public spending Forces honest taxpayers to pick up the tab Erodes community confidence in the equity of the revenue system.

Finally, the current method of collecting taxes/levies from tax payers lack proper organization and prone to obvious fraudulent activities, thereby resulting to loss of funds by the State Government. This however, leads to the inability of the Government meeting the basic projects requirements like rehabilitation of roads, building/ renovation of hospitals, schools and so on. The tax administration system does not clearly states the strategy that is being used to apportion taxes or levies or charges to some key business enterprise like electronic shops, saloon, hawkers, petty shops, barbing saloon, recharge card resellers, cosmetics shops, super markets etc. Random amount is being collected as taxes/levies from these business enterprises, which might be below or over charged taxes; and most times the levies/taxes might not be remitted to the state Government or if remitted, a reasonable amount would have been diverted by the officers in charge of the collection. This situation occurs because there is no proper structure on ground to determine the exact monies and the number of petty shops or saloons in a given location, to enable the State Government to ascertain the actual figures, in terms of Naira and Kobo that is generated from most small scale businesses majority of who are individual taxpayers.

1.3. Objectives of the Study

The main objective of this research work is to assess the role of tax officials in the prevention and detection of tax frauds in Nigeria.

The research study will highly focus on specific objectives particularly which will be to:

  1. Identify the concept of taxation and tax fraud offences under Nigeria tax system;
  2. Identify legal and administrative measures used to address tax frauds.
  3. Evaluate the techniques/modes adopted by the taxpayers in committing tax fraud. Identify weaknesses in addressing tax fraud by tax authority.
  4. Examine the impact of tax fraud offence on the revenue of the Government in particular and the economy of the country, as a whole.
  5. Recommend mechanisms that should be used to control and curb tax fraud offences.

1.4. Research Questions

People talk about tax matters, complain about them and try to dodge them when they can. Some always pay; some always cheat; and some cheat when they think they can get away with it. Businesses also react to taxes, both in how they organize their activities and, perhaps, in where they carry them out.

This research is intended to find the possible solutions for the following questions:

  1. What is the concept of taxation and tax fraud offences under Nigeria tax system?
  2. What are the legal and administrative measures used to address tax frauds in Nigeria?
  3. What are the various techniques/modes adopted by the taxpayers in committing tax fraud in Nigeria?
  4. Are there any weaknesses in addressing tax fraud by tax authority in Ibadan?
  5. Are there any effect of tax fraud offence on the revenue of the Government in particular and the economy of the country, as a whole?

Recommend mechanisms that should be used to control and curb tax fraud offences.

1.5 Hypotheses of the Study

Following the objectives of the study the following hypotheses were formulated and tested

Hypothesis one
  • Ho: Tax fraud offences does not have significant impact on the revenue of the Government
  • H1: Tax fraud offences have significant impact on the revenue of the Government
Hypotheses two
  • Ho: Tax Authority is Not effective in the prevention and detection of Fraud in Nigeria
  • H1: Tax Authority is effective in the prevention and detection of Fraud in Nigeria

1.6 Significance of Study

Tax fraud is a general phenomenon that is probably as old as taxation itself. Wherever and whenever authorities decide to levy taxes, individuals and firms try to avoid paying them. Though this problem has always been present, it becomes more pressing in the course of globalization as this process extends the range of opportunities to circumvent taxation while simultaneously reducing the risk of being detected. For the purpose of this study, this research study would contribute to the existing literature on tax fraud by focusing on reform of tax laws and policy in Nigeria with a view to identifying the critical problems on the collection of tax levy and causes of tax fraud among taxpayers so that appropriate measures could be taken to tackle them. This study shall also seeks to set out, a concrete analysis of other tax fraud offences such as tax evasion/avoidance perpetrated by individual tax payers and corporations, and it will also consider the ‘dark’ side of professional practice by examining the involvement of tax officials in facilitating tax fraud, tax avoidance, tax evasion and other related tax offences in Nigeria. Finally this study will be of great significance to government, tax officials, tax authority, small scale entrepreneur, investors, corporate organizations, schools and students who are regular taxpayers, it will serve as a reference point for student who would like to make future research or contribute to the existing literature.

1.7 Scope and Limitation of the Study

In the light of broad coverage, the researcher focuses on the role of tax authority in detection and prevention of tax fraud in Nigeria, particularly among tax payers in Ado-Ekiti, Ekiti State.

The researcher limit his research to small scale entrepreneur in Ado-Ekiti Metropolis because they constitute a large percentage of taxpayers in the state, some of which are used to avoiding the payment of tax, thereby reducing internal revenue generated by the state government. The researcher encountered some constraint in the course of the study; Little time and inadequate funds: the researchers was not able to generate complete and concrete research material, this is because of time and money constraints at the disposal of the researchers, on one hand, and the unwillingness and the busy schedule of the Tax officials, in the other, in order to provide us with more appeal cases and their valued opinions.

However, we had to convince the respondents by giving gentlemen word that the names of the corporate firms would not be disclosed in our study and the materials would be used for this study purpose only.

Not enough previous research work has been carried out on this study, thus creating a lump sum of work for the researcher, and extending the duration initially budgeted for the completion of the research study.

1.8 Definition of Terms

Tax Fraud:

Tax fraud occurs when an individual or business entity willfully and intentionally falsifies information on a tax return in order to limit the amount of tax liability.

State Taxes:

Personal Income Tax, Road Taxes, Pools betting and lotteries, Business premises registration, Development Levy, Naming of street registration in state capitals, Right of occupancy on land owned by state, and Market taxes on state financed taxes.

Tax Evasion:

Tax evasion in general refers to illegal practices to escape from taxation. To this end, taxable income, profits liable to tax or other taxable activities are concealed, the amount and/or the source of income are misrepresented, or tax reducing factors such as deductions, exemptions or credits are deliberately overstated (see Alm and Vazquez, 2001 and Chiumya, 2006). Tax evasion can occur as an isolated incident within activities that are in other aspects legal. Or tax evasion occurs in the informal economy where the whole activity takes place in an informal manner this means the business is not only evading tax payments but is also not registered as formal enterprise at all.

Tax Avoidance:

Tax avoidance, in contrast, takes place within the legal context of the tax system that is individuals or firms take advantage of the tax code and exploit “loopholes”, i.e. engage in activities that are legal but run counter to the purpose of the tax law. Usually, tax avoidance encompasses special activities with the sole purpose to reduce tax liabilities. An example for tax avoidance is strategic tax planning where financial affairs are arranged such in order to minimize tax liabilities by e.g. using tax deductions and taking advantage of tax credits.


Can be defined as the failure on the part of a taxpayer to correctly file returns, report actual income, claim the correct deductions, reliefs and rebates and remit the actual amount of tax payable to the authority on time.


Is a compulsory levy payable by individual economic units or corporate bodies to government without any direct quid pro quo from the government.


Is an act or course of deception, deliberately practiced to gain unlawful or unfair advantage; at the detriment of another.

Direct and Indirect Tax:

direct taxes are levied on persons or property, while indirect taxes are levied on manufacture, sale, consumption, and the like, and are indirectly paid by the consumer.

1.9 Organization of the Study

This research work is organized in five chapters, for easy understanding, as follows

  • Chapter one is concern with the introduction, which consist of the (overview, of the study), statement of problem, objectives of the study, research question, significance or the study, research methodology, definition of terms and historical background of the study.
  • Chapter two highlight the theoretical framework on which the study is based, thus the review of related literature.
  • Chapter three deals on the research design and methodology adopted in the study.
  • Chapter four concentrate on the data collection and analysis and presentation of finding.
  • Chapter five gives summary, conclusion, and recommendations made of the study.

Chapter Five

Summary, Conclusion and Recommendation

5.1 Introduction

It is important to ascertain that the main objective of this study was to ascertain the effect of tax authority in the prevention and detection of tax fraud in Nigeria.

In the preceding chapter, the relevant data collected for this study were presented, critically analyzed and appropriate interpretation given. In this chapter, certain recommendations made which in the opinion of the researcher will be of benefits in addressing the challenges and causes of tax fraud in Nigeria.

5.2 Summary

The main objective of the study was to determine the role of tax authority in the prevention and detection of tax fraud in Nigeria. Survey design was used in analyzing the data obtained with questionnaire as the major tool of data collection. Questionnaires were administered to 200 randomly selected respondents and 90% of these returned their questionnaires.

It was discovered that 51 respondents which represents 38.3% of the respondents agreed that there are effect of tax fraud offence on the revenue of the Government in particular and the economy of the country, as a whole, 36 respondents which represents 27.1% of the respondents strongly agreed to this fact, 28 respondents which represents 21.1% of the respondents disagreed, while 18 respondents which represents 13.5% strongly disagreed. The researcher therefore concludes that there are effect of tax fraud offence on the revenue of the Government in particular and the economy of the country, as a whole. The findings therefore summarize that there are various reasons and facilitating factors for tax evasion and tax fraud and avoidance. These might be categorized into factors that negatively affect taxpayers’ compliance with tax legislation on the one hand and into reasons explaining the weak capacity of tax administration and bodies to enforce tax liabilities on the other side. In order to develop methods and instruments for fighting tax evasion and avoidance, it is important to foremost establish a broad understanding of the different reasons underlying these problems.

5.3 Conclusion

The research analyzed why attention has to be given to the question of tax fraud prevention in the Nigerian, it has discussed the management policies as regards tax fraud prevention in the Nigerian. The study also appreciated tax fraud prevention and detection methods and its influence on Nigerian public sector and discovered that there is no strong internal control system from responsible bodies on tax fraud. The study further examined management integrity as regards its influence on tax fraud prevention in the Nigeria. Tax authority has been a the link between government and recovery of tax revenue from citizens and a vital academic research topic in most developed countries, there has not been detailed consideration of the major determinants of tax fraud in Nigeria.

The researcher therefore concludes that the ultimate responsibility for discouraging and preventing tax fraud rest with the government and management and need good and effective tax fraud prevention policies to be in place.

5.4 Recommendation

  1. The Authorities involved in tax monitoring has to widen up a number of taxpayer sensitization seminars and workshops on various tax laws.
  2. FIRS management should work strongly and promoting effectiveness and efficiency in the department in order to achieve the targeted revenue collection. Enhance human resource capacity and organization-review in the departmental structure, maintain high level of staff integrity in tax revenue collection, eradicating dumping of transit goods by conducting risk based verification audits, preventing smuggling across all Nigerian borders by conducting surprise visits to most risk areas, proper valuation and classify locally imported and transit goods by identifying sensitive commodities.
  3. FIRS should be able to account for each tax assessment by identifying overdue assessments and make timely follow up to recover the assessed tax, prevent revenue leakage from exemptions, account for all cargo arriving at the port, airport and border stations by developing a system that will record inward and outward movement of goods.
  4. The FIRS at all levels (Federal, State and Local Government) should improve the standard of tax audit employed for effectiveness and efficiency
  5. Tax audit should aim at reducing more problems of tax evasion, tax avoidance and other tax irregularities for standardization.
  6. The FIRS should provide a policy to the public on the awareness of the importance of tax payment and the effect of non-tax payment, so that the level of compliance would be high and non-compliance will be low or even none.

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