Padang — Ethical leadership plays a decisive role in strengthening employee integrity in Indonesia’s public tax institutions, according to a 2026 study by Isra Ahadiwustha and Syahrizal from Universitas Negeri Padang published in the East Asian Journal of Multidisciplinary Research. The study shows that organizational ethical climate—not job satisfaction—is the main mechanism linking leadership to integrity among civil servants working in tax administration.
The findings are significant for public sector reform because integrity within revenue institutions directly influences transparency, accountability, and public trust in government taxation systems. In environments where integrity determines institutional credibility, leadership behavior shapes how ethical standards are understood and practiced across organizations.
The research examined employees working in ten Tax Service Offices under the Regional Directorate General of Taxes (DGT) in West Sumatra and Jambi. Using responses from 260 civil servants, the study provides one of the most detailed empirical analyses of integrity formation inside Indonesia’s tax bureaucracy.
Integrity remains central to public trust in tax administration
Public institutions responsible for managing state revenue rely heavily on credibility. When taxpayers believe officials act fairly and transparently, voluntary compliance increases. Conversely, weak institutional integrity undermines trust and reduces compliance.
Indonesia’s Directorate General of Taxes has already adopted integrity performance indicators as part of institutional evaluation systems. However, regional variations remain visible. Several tax offices in West Sumatra and Jambi recorded integrity performance below the national benchmark target of 85 percent, highlighting the need for deeper analysis of organizational drivers behind ethical conduct.
The study by Universitas Negeri Padang researchers responds directly to this challenge by examining how leadership behavior, workplace climate, and employee attitudes interact to shape integrity outcomes.
Survey-based research across regional tax offices
The researchers used a quantitative survey design involving 260 civil servants selected through proportionate stratified random sampling from a population of 794 employees across ten tax offices.
Data were collected through structured questionnaires and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM), a statistical method widely used to examine relationships among organizational variables.
The analysis focused on four main factors:
- ethical leadership
- ethical climate
- job satisfaction
- employee integrity
This approach allowed the researchers to identify both direct and indirect pathways through which leadership influences ethical behavior in public institutions.
Ethical leadership strongly shapes organizational climate
One of the study’s strongest findings is the significant influence of ethical leadership on organizational ethical climate.
Employees who observe supervisors acting consistently with ethical norms tend to internalize those standards as part of workplace expectations. Leadership behavior therefore becomes a reference point for acceptable conduct across the organization.
According to Isra Ahadiwustha and Syahrizal from Universitas Negeri Padang, ethical leaders function as role models whose actions help establish shared behavioral norms that guide employee decisions in daily administrative work.
The statistical analysis confirms that ethical leadership has the strongest effect on ethical climate among all relationships examined in the study.
Ethical climate directly strengthens employee integrity
The research identifies ethical climate as the most important predictor of employee integrity in Indonesia’s tax administration environment.
When employees perceive that ethical standards are clearly defined, consistently enforced, and institutionally supported, they are more likely to behave with accountability and professionalism. This shared perception of ethical expectations becomes a structural foundation for integrity across the organization.
The findings demonstrate that integrity in public revenue institutions is shaped primarily by normative organizational conditions rather than individual attitudes alone.
In other words, employees maintain integrity because ethical behavior is embedded in institutional systems—not simply because they feel satisfied with their jobs.
Job satisfaction improves morale but not integrity outcomes
The study also found that ethical leadership significantly improves job satisfaction among employees. Staff members working under fair and transparent supervisors reported stronger positive attitudes toward their work environment.
However, job satisfaction did not show a direct or indirect influence on employee integrity.
This result challenges assumptions commonly found in earlier studies conducted in other sectors, particularly law enforcement institutions, where job satisfaction often predicts ethical behavior.
According to Isra Ahadiwustha and Syahrizal from Universitas Negeri Padang, the difference reflects the institutional structure of tax administration, where integrity is closely monitored through formal performance indicators and anti-corruption oversight systems.
In such high-accountability environments, structural expectations outweigh emotional workplace attitudes in shaping ethical conduct.
Ethical climate acts as the key bridge between leadership and integrity
Another important contribution of the study is its confirmation that ethical climate mediates the relationship between ethical leadership and employee integrity.
This means leadership does not influence integrity directly in most cases. Instead, leaders shape the ethical environment of the organization, and that environment determines how employees behave.
The research also shows that ethical climate mediates the relationship between ethical leadership and job satisfaction. Employees working in ethically structured environments experience stronger psychological safety and trust in institutional procedures.
These findings highlight the central role of ethical climate as a transmission mechanism connecting leadership practices with both behavioral and attitudinal outcomes inside public organizations.
Implications for public sector reform and governance
The study provides practical guidance for policymakers and institutional leaders working to strengthen integrity systems in government agencies.
Rather than focusing exclusively on improving employee morale or satisfaction, organizations may achieve stronger results by building consistent ethical norms supported by leadership example, monitoring systems, and institutional accountability structures.
According to Isra Ahadiwustha and Syahrizal from Universitas Negeri Padang, strengthening ethical climate through leadership development programs can significantly improve integrity outcomes across public revenue institutions.
The findings also contribute to international research on ethical leadership by demonstrating that normative organizational mechanisms are more influential than affective job attitudes in high-accountability bureaucratic environments.
This insight is particularly relevant for emerging economies implementing anti-corruption reforms and performance-based governance systems.
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