Understanding the self-assessment system, transfer pricing, tax avoidance, and good corporate governance in relation to environmental uncertainty, with taxpayer awareness as a moderating variable. The research sample consisted of 200 respondents, comprising 10 respondents from the hospitality industry and 190 respondents from MSMEs, analyzed using the Smartpls statistical t-test software. The results showed that taxpayer awareness can mediate the self-assessment system, tax avoidance, and good corporate governance in relation to environmental uncertainty. Meanwhile, taxpayer awareness cannot mediate transfer pricing in relation to environmental uncertainty.
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