Auditor Independence, Financial Reporting Quality and Financial Performance of Quoted Deposit Money Banks in Nigeria

This study examined the effect of auditor independence on the financial reporting quality and financial performance of quoted deposit money banks in Nigeria over the period 2010 to 2024. Two concerns motivated the enquiry. The first is that recurring banking crises and financial misstatements in Nigeria have raised persistent questions about whether the external audit function genuinely safeguards the credibility of published financial statements. The second is that the empirical literature has generally examined auditor independence, reporting quality and financial performance in isolation rather than testing whether reporting quality mediates the independence–performance relationship. Anchored on Agency Theory and Information Asymmetry Theory, the study pursued two objectives: to examine the effect of auditor independence on financial reporting quality, and to determine its effect on financial performance with reporting quality tested as a mediating channel. Four regression models operationalised these objectives. Auditor independence was proxied by audit fees, audit tenure and audit firm size; financial reporting quality was measured using discretionary accruals from the Modified Jones Model; and financial performance was measured using return on assets and return on equity. All thirteen listed deposit money banks were observed over fifteen years, yielding a balanced panel of 195 bank-year observations drawn from audited annual reports. Data were analysed using descriptive statistics, Pearson correlation and panel regression, with the Hausman test used to select between the fixed and random effects estimators. On the first objective, audit fees and Big Four membership significantly reduced discretionary accruals while audit tenure significantly increased them, establishing that auditor independence affects reporting quality. On the second objective, auditor independence significantly affected both return on assets and return on equity; when financial reporting quality was introduced into the performance equation, the effect of audit tenure on performance disappeared and the audit fee coefficient declined, establishing financial reporting quality as a mediating channel. The combined model accounted for 74.8 per cent of the variation in return on assets and 68.3 per cent of the variation in return on equity. The study concludes that auditor independence influences financial performance both directly and indirectly through its effect on reporting quality, and recommends that regulators enforce mandatory audit firm rotation, that banks ensure audit fees adequately reflect engagement scope, and that investors treat audit quality indicators as material signals of bank credibility.

Auditor Independence; Financial Reporting Quality; Financial Performance; Deposit Money Banks; Audit Fees; Audit Tenure; Discretionary Accruals; Nigeria

1. Adigbole, E. A., Bamidele, G. B., Adeyemi, M. O., & David, A. E. (2024). Audit quality and financial performance of listed deposit money banks in Nigeria. African Journal of Leadership and Human Behaviour, 6(1), 45–62. [Google Scholar] [Crossref]

2. Al-Faryan, M. A., & Al-Zoubi, E. S. S. (2023). Impact of corporate governance and audit quality on financial performance: Listed vs. unlisted Tunisian companies. International Journal of Monetary Economics and Finance, 16(2), 101–118. [Google Scholar] [Crossref]

3. Amahalu, N. (2019). Effect of auditors’ rotation on audit quality of quoted deposit money banks in Nigeria [Working paper]. SSRN. [Google Scholar] [Crossref]

4. Asuquo, N. I., Etim, O. E., Unirere, P. G., Adebayo, J. A., & Bassey, E. O. (2025). Firm attributes and financial reporting quality of deposit money banks in Nigeria. POLAC International Journal of Economics and Management Science, 12(1), 1–11. [Google Scholar] [Crossref]

5. Danladi, S., & Magaji, Z. (2021). Auditors’ independence and financial reporting quality of listed deposit money banks in Nigeria. In Proceedings of the International Conference on Accounting and Finance (pp. 45–60). [Google Scholar] [Crossref]

6. Emovon, F. O., & Ogbonmwan, E. E. (2024). Effect of audit firm characteristics on audit quality of quoted deposit money banks in Nigeria. FUDMA Journal of Accounting and Finance Research, 2(1), 14–28. [Google Scholar] [Crossref]

7. Haddad, A. (2022). The impact of the external audit quality on the financial performance of conventional and Islamic banks. Asian Journal of Middle Eastern and Islamic Studies, 16(3), 220–240. [Google Scholar] [Crossref]

8. Jensen, M. C., & Meckling, W. H. (1976). Theory of the firm: Managerial behavior, agency costs and ownership structure. Journal of Financial Economics, 3(4), 305–360. [Google Scholar] [Crossref]

9. Loew, E., & Nguyen, T. T. T. (2024). The impact of non-audit services on auditor independence in European banks. SSRN Electronic Journal. [Google Scholar] [Crossref]

10. Nwafor, P. U., & Amahalu, N. N. (2021). Auditors’ independence and audit quality of quoted deposit money banks in Nigeria. American Research Journal of Humanities and Social Sciences, 4(9), 77–85. [Google Scholar] [Crossref]

11. Ogbodo, O. C., & Akabuogu, N. J. (2018). Effect of audit quality on the financial performance of selected banks in Nigeria. International Journal of Trend in Scientific Research and Development, 2(6), 967–977. [Google Scholar] [Crossref]

12. Ogundele, O. S., Ifunanya, N. L., & Innocent, M. K. (2024). Moderating role of audit tenure in the relationship between audit fees and financial performance: Evidence from the Nigerian banking sector. In Proceedings of the International Conference on Accounting and Finance. Springer. [Google Scholar] [Crossref]

13. Ogungbade, O. I., Adekoya, A. C., & Olugbodi, D. I. (2021). Audit quality and financial reporting quality of deposit money banks listed on the Nigerian Stock Exchange. Journal of Accounting, Finance and Auditing Studies, 7(2), 1–18. [Google Scholar] [Crossref]

14. Oladejo, M. O., Olowookere, J. K., & Yinus, S. O. (2020). External audit quality and users’ confidence in financial reports: Evidence from Nigerian deposit money banks. International Journal of Technology and Management, 5(1), 1–16. [Google Scholar] [Crossref]

15. Oladejo, M. O., Hammed, R. O., & Oyeleye, K. W. (2025). Relationship between audit quality attributes and earnings quality of selected deposit money banks in Nigeria. International Journal of Innovative Research and Advanced Studies, 8(2), 13–22. [Google Scholar] [Crossref]

16. Onyabe, J. M., Okpanachi, J., Nyor, T., Yahaya, O. A., & Ahmed, M. (2018). Effect of audit committee tenure on financial reporting quality of listed deposit money banks in Nigeria. European Scientific Journal, 14(4), 257–271. [Google Scholar] [Crossref]

17. Patterson, E. R., Smith, J. R., & Tiras, S. L. (2019). The interrelation between audit quality and managerial reporting choices and its effects on financial reporting quality. Contemporary Accounting Research, 36(2), 1046–1076. [Google Scholar] [Crossref]

18. Saleh Aly, S. A., Diab, A., & Abdelazim, S. I. (2023). Audit quality, firm value and audit fees: Does audit tenure matter? Egyptian evidence. Journal of Financial Reporting and Accounting, 21(3), 550–570. [Google Scholar] [Crossref]

19. Soyemi, K. A., Olufemi, O. A., & Abayomi, T. (2020). External audit quality and accrual earnings management: Further evidence from Nigeria. Malaysian Management Journal, 24(1), 1–22. [Google Scholar] [Crossref]

20. Ugwu, C. C., Aikpitanyi, L. N., & Idemudia, S. (2020). The effect of audit quality on financial performance of deposit money banks: Evidence from Nigeria. Journal of Economics and Business, 3(1), 270–281. [Google Scholar] [Crossref]

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