Main Article Content
Abstract
This study looks at the impact of Firm Size, Debt to Equity Ratio, and Tax Expense Efficiency on Return on Assets in coal subsector companies listed on the Indonesia Stock Exchange between 2017 and 2024. There are seven firms in the sample, which results in 56 firm-year observations. “Pooled ordinary least squares (OLS) regression is used in the empirical analysis on firm-year data, and diagnostic tests are used to confirm that the calculated connections are reliable”. The findings show that the regression model as a whole is statistically significant, indicating that the independent variables work together to explain changes in Return on Assets. However, partial test findings reveal that Firm Size has a positive and statistically significant impact on Return on Assets, the Debt to Equity Ratio has a negative and statistically significant association, and Tax Expense Efficiency has no statistically significant influence. These results suggest that business size and capital structure have a greater impact on profitability in the coal subsector than does tax expense efficiency. By offering sector-specific data from a capital-intensive industry, this study adds to the body of literature by emphasizing the significance of financing choices and operational scale in determining business profitability as well as the limited relevance of tax efficiency under stringent regulatory frameworks.
Keywords
Article Details

This work is licensed under a Creative Commons Attribution 4.0 International License.

This work is licensed under a Creative Commons Attribution 4.0 International License.
References
- Agape, S. P., & Triyonowati. (2018). Pengaruh Size, Struktur Modal, dan Likuiditas terhadap Profitabilitas Perusahaan Makanan dan Minuman di BEI. Jurnal Ilmu Dan Riset Manajemen, 7(7).
- Almajali, A. Y., Alamro, S. A., & Al-Soub, Y. Z. (2016). Factors Affecting the Financial Performance of Jordanian Insurance Companies. International Journal of Business and Social Science, 7(2), 266–289. https://doi.org/10.5296/jmr.v4i2.1482
- Arismutia, S. A. (2024). The Influence of Total Assets Turnover, Return on Assets and Debt to Equity Ratio on Stock Prices Moderated by Firm Size. Journal of Accounting Inaba, 3(1), 14–28. https://doi.org/10.56956/jai.v3i01.291
- Astivasari, N., & Siswanto, E. (2018). Pengaruh Struktur Modal dan Ukuran Perusahaan terhadap Profitabilitas Perusahaan Indonesia. Ekonomi Bisnis, 23(1), 35–42. https://doi.org/10.17977/um042v23i1p35-42
- Astuti, S., & Sjarif, D. (2022). Effect of Current Ratio, Debt to Equity Ratio and Sales Growth on Financial Distress with Return on Assets as Intervening Variable. Journal of Accounting Inaba, 1(1), 57–69. https://doi.org/10.56956/jai.v1i1.7
- Aydn, N., Sayim, M., & Yalama, A. (2021). Determinants of Firm Profitability: Evidence from Emerging Markets. Research in International Business and Finance, 56, 101546. https://doi.org/10.1016/j.ribaf.2021.101546
- Brigham, E. F., & Houston, J. F. (2019). Fundamentals of Financial Management (15th ed.). Cengage Learning.
- Chen, S., Chen, X., Cheng, Q., & Shevlin, T. (2018). Are Family Firms More Tax Aggressive than Non-Family Firms? Journal of Accounting and Economics, 65(2–3), 1–25. https://doi.org/10.1016/j.jacceco.2018.05.002
- Dang, C., Li, Z., & Yang, C. (2018). Measuring Firm Size in Empirical Corporate Finance. Journal of Banking and Finance, 86, 159–176. https://doi.org/10.1016/j.jbankfin.2017.09.006
- Graham, J. R., Hanlon, M., Shevlin, T., & Shroff, N. (2017). Tax Rates and Corporate Decision-Making. Review of Financial Studies, 30(9), 3128–3175. https://doi.org/10.1093/rfs/hhx037
- Hamdani, D., & Prastiyanti, T. (2022). The Impact of Return on Asset, Debt to Equity Ratio and Inventory Turnover on Effective Tax Rate. Journal of Accounting Inaba, 1(1), 10–22. https://doi.org/10.56956/jai.v1i1.12
- Harahap, S. S. (2018). Analisis Kritis atas Laporan Keuangan. Rajawali Pers.
- Hery. (2018). Analisis Laporan Keuangan. Grasindo.
- International Energy Agency. (2023). Coal 2023. https://www.iea.org/reports/coal-2023
- Jamasb, T., Mota, R., Newbery, D., & Pollitt, M. (2017). Electricity Sector Reform and Regulation in Developing Countries. Energy Policy, 105, 195–234. https://doi.org/10.5547/01956574.38.3.tjam
- Kasmir. (2019). Analisis Laporan Keuangan. Rajawali Pers.
- Kovermann, J., & Velte, P. (2019). The Impact of Corporate Governance on Tax Avoidance: Evidence from Germany. Journal of International Accounting, Auditing and Taxation, 36, 100270. https://doi.org/10.1016/j.intaccaudtax.2019.100270
- Nawawi, N. (2024). Analysis of Financial Statements to Assess Financial Performance. Golden Ratio of Data in Summary, 5(1), 56–63. https://doi.org/10.52970/grdis.v5i1.760
- Palepu, K. G., Healy, P. M., & Peek, E. (2020). Business Analysis and Valuation: Using Financial Statements (5th ed.). Cengage Learning.
- Panggabean, I. K., & Kasir, K. (2023). Factors that Influence Companies in Tax Avoidance. Journal of Accounting Inaba, 2(2), 67–78. https://doi.org/10.56956/jai.v2i02.246
- Pervan, M., Pervan, I., & Čurak, M. (2019). Determinants of Firm Profitability: Evidence from the Croatian Food Industry. Economic Research-Ekonomska Istraživanja, 32(1), 338–358. https://doi.org/10.1080/1331677X.2019.1583587
- Richardson, G., Taylor, G., & Lanis, R. (2016). The Impact of Board of Director Oversight Characteristics on Corporate Tax Aggressiveness. Journal of Accounting and Economics, 61(2–3), 428–446. https://doi.org/10.1016/j.jacceco.2016.06.001
- Saifudin, & Yunanda, D. (2016). Determinan Return on Asset pada Perusahaan Manufaktur yang Terdaftar di Bursa Efek Indonesia. WIGA: Jurnal Penelitian Ilmu Ekonomi, 6(2), 129–139. https://doi.org/10.30741/wiga.v6i2.121
- Salehi, M., Salami, S., & Dadgar, E. (2020). The Relationship between Tax Avoidance and Firm Value. Journal of Financial Reporting and Accounting, 18(3), 683–708.
- Shabrina, W., & Hadian, N. (2021). The Influence of Current Ratio, Debt to Equity Ratio, and Return on Assets on Dividend Payout Ratio. International Journal of Financial, Accounting, and Management, 3(3), 193–204. https://doi.org/10.35912/ijfam.v3i3.221
- Subramanyam, K. R., & Wild, J. J. (2020). Financial Statement Analysis (12th ed.). McGraw-Hill Education.
- Vo, X. V., & Ellis, C. (2017). An Empirical Investigation of Capital Structure and Firm Performance. Finance Research Letters, 22, 225–231. https://doi.org/10.1016/j.frl.2016.10.014
- Waluyo. (2017). Perpajakan Indonesia. Salemba Empat.
- Zannati, N. I. A., & Ginting, W. (2022). The Effect of Current Ratio, Debt to Equity Ratio, and Total Assets Turnover on Return on Equity. Journal of Accounting Inaba, 1(2), 113–127. https://doi.org/10.56956/jai.v1i02.129
- Zeitun, R., & Tian, G. (2018). Capital Structure and Corporate Performance: Evidence from Jordan. Australasian Accounting, Business and Finance Journal, 12(1), 94–112. https://doi.org/10.14453/aabfj.v1i4.3
