ATJ Asian Tax Journal

Asian Tax Journal

Print ISSN 1738-3323 Online ISSN 2733-9270

An Empirical Analysis on the Economic Consequences of Consolidated Tax Return System －Focused on Holding Company－

  • Yongkyu Lee Soongsil University
  • Oungrak Oh Soongsil University
  • Hee Chun Roh Soongsil University
  • Lee, Seok-Jung Soongsil University

Asian Tax Journal Vol. 13 No. 1 (2012), pp. 281-315

Abstract

The purpose of this study is to analyze the economic consequences of consolidated tax return for holding company empirically. It is willing review the economic consequences of consolidated tax return for holding company and the appropriateness of policy against extension of applying object proportion of share ownership range by analyzing the influence on tax burden along difference analysis of the effect before and after introducing the consolidated tax return and range extension of proportion of share ownership of consolidated tax return－applying object for holding company concretely. Since introducing the system of holding company in April, 1999, there has been constant discussion over introduction of consolidated tax return system. The economic and academic world called for rapid introduction of it emphasizing that the unfairness of tax burden can be improved by the introduction of consolidated tax return to holding company which is the economic single substance, government introduced it targeting complete governance corporate which's proportion of share ownership is 100% on January 1, 2010 after prolonging its execution due to incompleteness of the given several conditions such as decrease of tax income. This thesis is willing to compare and analyze whether difference of tax burden ratio is increased or not along difference of tax burden ratio and the extension of tax burden ratio of the consolidated tax return applying object by applying the consolidated tax return targeting the registered company as holding company as of May, 2010, compare and analyze whether the horizontal fairness is improved or not along the difference of horizontal fairness of tax burden and the range extension of applying object proportion of share ownership, and review the appropriateness of policy of extension of proportion of share ownership against consolidated tax return by analyzing influence on tax burden when extending introduction effect of consolidated tax return and range of proportion share ownership of consolidated tax return. The period of this study is one year for 2009. I abstracted the sample data utilizing consolidated financial sheets registered in DART (Data Analysis, Retrieval and Transfer System) of Financial Services Commission, financial sheets, annotation in the external audit report and other related data after selecting the registered companies as holding company and their subsidiary companies. As the results of verifying whether there is difference or not before and after introducing consolidated tax return system, tax burden got decreased all for the group of proportion share ownership 100%, the group of proportion share ownership over 80% and the group of proportion share ownership in excess of 50% when consolidated tax return system was introduced. Also, as the results of verifying whether difference of tax burden get increased or not as the applying scope of proportion share ownership is extended, I could not find the meaningful difference between the group of proportion share ownership 100% and the group of proportion share ownership over 80%, but I could recognize the decreasing degree of effective corporate income tax rate got increased when applying scope of consolidated tax return was extended. As the results of verifying horizontal fairness before and after introducing consolidated tax return, the coefficient of variation got declined by 0.008 in the group of proportion share ownership 100%, coefficient of variation got declined by 0.11 in the group of proportion share ownership over 80%, and the coefficient of variation got declined by 0.21 in the group of proportion share ownership in excess of 50%. Additionally, as the results of verifying the coefficient of variation ratio, it was the same as the coefficient of variation. It means that there is difference between the groups per proportion share ownership regarding horizontal fairness and it was recognized that horizontal fairness was improved as much as applying scope of proportion share ownership was extended also. As the results of executing regression analysis to recognize the factors influencing effective corporate income tax rate when applying consolidated tax return, the deficit appeared to have the meaningful negative value for all groups per proportion share ownership. Through this, we can recognize that it influences the change of effective corporate income tax rate consistently in case of the deficit.

Keywords

  • holding company
  • consolidated tax return
  • horizontal tax equity
  • effective tax rate
  • Coefficient of Variation

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