Mbamara, Kingsley 1 ; Ekwe, M. C. 2 & Ihendinihu, John Uzoma 3
1 Bursary Department, Imo State University, Owerri, Imo State. Nigeria.
Email: aikmmiri@yahoo.com
2 Department of Accounting, College of Management Sciences, Michael Okpara University
of Agriculture, Umudike, Abia State. Email: ekwemike@yahoo.com
3 Department of Accounting, College of Management Sciences, Michael Okpara University
of Agriculture, Umudike, Abia State. Email: ihendinihu.john@gamil.com

Abstract
Despite increases in tax base, Nigeria is yet to record commensurate increases in tax revenue. The
study investigated the effect of tax base on tax revenue in Nigeria. Ten years data on total tax revenue
(TTR), value added tax (VAT), and custom and excise duties (CED) were collated from government
official sources. Multiple regression and correlation analysis were applied in analysing the data. The
result revealed that a linear relationship exist between total tax revenue and its tax base, custom
duty and imports, while the relationship between value added tax and its base showed a negative
relationship. The study recommends among others that government should improve tax
administrative system in other to reduce inefficiency, block loopholes for tax evasion and eliminate
corruption within the system.
Keywords: Tax Base, Tax Revenue, Value Added Tax, Custom & excise duties, Total Tax revenue

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