[Vietnam Biz – Part 22] Are you ready for global tax compliance? Key corporate income tax risks and countermeasures in Vietnam (Part 3)

3. Why Is Vietnam’s Tax System Becoming So Complex?

The complexity surrounding Vietnam’s tax system stems from a web of varying tax incentives tailored to specific investments and industries, combined with the pressure of adapting to global tax reforms. Recently, the implementation of the Global Minimum Tax has introduced entirely new rules, forcing companies to stay highly vigilant regarding granular regional and industry-specific regulations.

To better understand this shifting landscape, let’s break down the primary drivers behind this increasing complexity in order:

    The existence of diverse incentive programs

    The ongoing alignment with international tax reforms

    A multitude of varying regulations based on regions and industries

Let’s dive deeper into each of these key factors.

3.1. The Existence of Diverse Incentive Programs

Vietnam offers a wide range of tax incentives—such as reduced tax rates and tax holidays (exemptions) for certain periods—depending on criteria like foreign ownership, specific industries, and total investment capital. For instance, investments in manufacturing, high-tech sectors, or designated socio-economic zones often enjoy rates significantly lower than the standard corporate income tax rate.

However, the qualifying conditions for these incentives are incredibly detailed, and the regulations undergo frequent annual reviews and amendments. Because the eligibility criteria vary widely from one company to the next, businesses must continuously verify and precisely assess their status. Consequently, corporate tax departments face highly complex decision-making processes and an ever-increasing administrative burden.

3.2. The Ongoing Alignment with International Tax Reforms

In recent years, Vietnam has been proactively aligning its framework with international standards, most notably through the introduction of global tax reforms. Starting in 2024, the country implemented the Global Minimum Tax (GMT) framework, which mandates a minimum effective tax rate of 15% for multinational enterprise (MNE) groups exceeding a certain revenue threshold.

As a result, even if a company qualifies for traditional local tax incentives, the multinational group as a whole may now face top-up tax liabilities. This expands the scope of tax compliance and reporting, requiring businesses to keep a close eye on global revenue structures and cross-border tax trends—making corporate tax management more intricate than ever.

3.3. A Multitude of Varying Regulations Based on Regions and Industries

The Vietnamese tax code is heavily fragmented by geography and sector. Unique tax incentives and provisions are tailored to specific industries as well as Economic Zones (EZs) and Industrial Parks (IPs) like agriculture and information technology (IT). It is quite common for companies within the same industry to face entirely different tax rates and filing obligations simply based on where their operations are located.

On top of that, local provincial authorities often maintain different administrative procedures and audit standards. Coupled with regular regulatory updates, this local variance demands constant on-the-ground information gathering and decision-making. To navigate this successfully, companies must establish tight coordination between their global headquarters and local Vietnamese entities to continuously monitor regulations and reinforce compliance structures.