Decoding Malaysian Corporate Tax: Is the Ibn Khaldun Theory the Key to Revenue?
"Exploring the sweet spot between tax rates and revenue using historical insights for modern economic policy."
In today's globalized economy, the relationship between corporate tax rates and government revenue is a topic of intense debate. Malaysia, with its strategic economic policies, offers a compelling case study. The nation has been progressively adjusting its corporate tax rates since 1988, aiming to boost its attractiveness as an investment hub and reduce the cost of doing business.
This strategy isn't unfolding in a vacuum. Alongside tax rate adjustments, Malaysia has introduced various tax incentives targeting key sectors such as tourism, technology, and SMEs. These incentives are part of a broader vision to stimulate economic growth and improve the well-being of its citizens.
But how do these tax policies impact actual government revenue? A fascinating perspective comes from the 14th-century scholar Ibn Khaldun, whose ideas on taxation, echoed in the modern Laffer Curve, suggest there's an optimal tax rate that maximizes revenue. This article delves into whether Malaysia's corporate tax strategy aligns with this ancient wisdom, potentially unlocking insights for modern economic policy.
Ibn Khaldun's Tax Theory: Finding the Revenue 'Sweet Spot'

Ibn Khaldun's theory, a precursor to the Laffer Curve, posits that there are two tax rates that can generate the same revenue—a rate too low to fully capitalize on potential earnings and a rate so high that it stifles economic activity, thereby shrinking the tax base.
- The Arithmetic Effect: If tax rates are lowered, tax revenues (per dollar of tax base) will be lowered by the amount of the decrease in the rate.
- The Economic Effect: This recognizes the positive impact that lower tax rates have on work, output, and employment—and thereby the tax base—by providing incentives to increase these activities.
Implications for Malaysia's Tax Strategy
This study confirms that Malaysia's strategy of gradually reducing corporate tax rates has boosted economic growth, and decreased the cost of doing business. Corporate tax rate has a positive relationship with corporate tax revenue at the lower rates of taxes and a negative relationship subsequent to an optimal level of the tax rate. A closer look at the results suggests that the optimal tax rate is 25.5156 per cent. It could, therefore, be inferred that an increase of the corporate tax rate above 25.5156 per cent will lead to a decrease in corporate tax revenue. The results of the present study further show that the financial crises had a negative impact on tax revenue in the country. However, the study also suggests that simply slashing taxes isn't a guaranteed path to increased revenue. The key lies in carefully calibrating tax rates to maximize economic activity, a balance that policymakers must continually monitor.