Leverage and Firm Size as Determinants of Tax Aggressiveness: The Mediating Role of Return on Assets in the Top 10 Indonesian Banks

Authors

  • Ervina Rosarina Hasibuan Business Administration Department, Politeknik Negeri Medan
  • Poppy Wulandari Business Administration Department, Politeknik Negeri Medan
  • Aboubaker Khoualed Department of Economic Sciences, Badji Mokhtar-Annaba University

DOI:

https://doi.org/10.26740/jaj.v18n1.p64-81

Keywords:

Firm Size, Leverage, Return On Aset, Tax Aggressiveness

Abstract

Research Background/ Problem: The decline in Indonesia's tax ratio has raised concerns about tax behavior of large corporations, including those in the banking sector, given their significant role in the national economy and tax contribution. Main Objective: Against this background, this study examines the effects of leverage and firm size on tax aggressiveness and the mediating role of return on assets (ROA). Research Method: The study uses panel data from the ten largest listed Indonesian banks from 2021 to 2024 and analyzes the data using the Random Effect Model (REM) in EViews 13. Results/ Findings: The results show that leverage and firm size have no significant direct effect on tax aggressiveness. ROA has a negative and significant effect on tax aggressiveness (p=0.0118); leverage has no significant effect on ROA, whereas firm size has a positive and significant effect (p =0.0000). The mediation analysis shows that leverage has no significant indirect effect on tax aggressiveness through ROA (Sobel t = -1,5903), whereas firm size has a significant negative indirect effect on tax aggressiveness through ROA (Sobel t = −2.432). Conclusion: These findings highlight the role of return non asset in explaining tax behavior among large Indonesian banks and provide implications for tax authorities and bank management in strengthening tax compliance and governance.

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Published

2026-10-01

How to Cite

Hasibuan, E. R., Wulandari, P., & Khoualed, A. (2026). Leverage and Firm Size as Determinants of Tax Aggressiveness: The Mediating Role of Return on Assets in the Top 10 Indonesian Banks. AKRUAL: Jurnal Akuntansi, 18(1), 64–81. https://doi.org/10.26740/jaj.v18n1.p64-81
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