The Effect of Tax Planning and Deferred Tax Expense on Earnings Management with Firm Size as a Moderating Variable in Mining Companies Listed on the Indonesia Stock Exchange

  • Florentina Syalini Da Cunha Fakultas Ekonomi Dan Bisnis, Universitas Nusa Cendana Kupang
  • Yohanes Demu Fakultas Ekonomi Dan Bisnis, Universitas Nusa Cendana Kupang
  • Indah Mutiara Fakultas Ekonomi Dan Bisnis, Universitas Nusa Cendana Kupang
Keywords: tax planning, deferred tax expense, earnings management, firm size, moderation

Abstract

This study examines the effects of tax planning and deferred tax expense on earnings management and the moderating role of firm size in mining companies listed on the Indonesia Stock Exchange during 2021–2025. It addresses inconsistent findings in earlier research by considering firm size within the mining sector. A quantitative associative approach uses secondary data from audited annual financial statements. Purposive sampling selects 24 companies from a population of 52, producing 120 observations in a balanced panel. Data are analyzed using random-effects panel regression and Moderated Regression Analysis with EViews 12. Earnings management is measured using discretionary accruals from the modified Jones model. The results show a positive and significant tax-planning coefficient and a negative and significant deferred-tax-expense coefficient. Firm size does not significantly moderate the effect of tax planning, but strengthens the deferred-tax-expense relationship under the study’s hypothesis-testing criterion. The reported adjusted R-squared is 0.522181, corresponding to 52.2181% of earnings-management variation. These findings contribute empirical evidence on the different roles of firm size in tax-related earnings management and emphasize the relevance of temporary differences and transaction complexity in mining companies.

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Published
2026-10-02
How to Cite
Da Cunha, F. S., Demu, Y., & Indah Mutiara. (2026). The Effect of Tax Planning and Deferred Tax Expense on Earnings Management with Firm Size as a Moderating Variable in Mining Companies Listed on the Indonesia Stock Exchange. International Journal of Economics, Business and Innovation Research, 5(05), 5612-5630. https://doi.org/10.63922/ijebir.v5i05.6766