For decades, Taiwan's approach to attracting corporate investment has followed a deceptively simple formula: offer tax breaks, and companies will come. Investment credits, tax holidays, and preferential rates have been the backbone of industrial policy — reliable tools that successive governments deployed with confidence. That formula is now being dismantled by an international framework Taiwan had no hand in writing.
The Global Anti-Base Erosion rules — GloBE, the OECD-led minimum corporate tax framework backed by the G20 — are not a technical footnote to Taiwan's fiscal calendar. They represent a wholesale rewriting of how investment competition works globally. The question Taipei must now answer is not whether to adjust its tax rates. It is whether the underlying logic of its entire industrial strategy still holds.
How the GloBE Floor Kills the Tax Advantage
The mechanism is straightforward, and its consequences are far-reaching. Under GloBE, when a multinational corporation's effective tax rate falls below 15 percent in any jurisdiction, the shortfall doesn't stay with the host country — it is collected elsewhere. The parent company's home government may claim it. Failing that, a third country where the corporation operates can invoke the Undertaxed Profits Rule, or UTPR, to collect its share.
The result is that any tax incentive Taiwan offers a multinational company no longer retains investment in Taiwan. It simply redirects that tax revenue to another government. This is not a shift in accounting. It is a reversal of the competitive logic that has governed investment attraction for the better part of three decades.
What Multinationals Are Already Recalculating
The practical impact shows up in how companies now model investment decisions — and the examples are instructive.
Consider a Taiwanese information and communications technology manufacturer that had planned to establish production facilities in Southeast Asia, with a ten-year local tax holiday as the decisive factor making projected returns substantially better than comparable sites in Taiwan or Japan. Under GloBE, even if the local effective rate falls to five percent, the company must top up to 15 percent when selling into G20 or OECD markets. Once the tax advantage evaporates, a recalculation based on energy reliability, engineering talent density, and supply chain efficiency produces a different answer: high-value-added manufacturing stays in Japan; Southeast Asia retains only final assembly. Investment does not disappear — but its position in the value chain shifts, and with it, strategic weight.
A subtler case involves a multinational technology company anchoring its Asia-Pacific research and development operations in Taiwan, sustained in part by R&D credits that compressed its effective tax rate. Under GloBE, those same credits now trigger UTPR claims from third countries. The company's internal response is to shift some R&D decision-making to Europe while keeping Taiwan as an execution and manufacturing center. The headcount stays roughly the same. On paper, the regional headquarters remains in Taipei. In practice, the decision-making center has quietly moved — and that kind of change does not appear in investment figures. It determines who holds strategic influence over an industry a decade from now.
The Erosion That Happens Before Anyone Notices
This is the pattern that makes GloBE particularly dangerous for Taiwan: its effects do not arrive as a single visible shock. They accumulate through institutional drift. Investment deals do not vanish overnight, but negotiating leverage shrinks. High-value activities do not relocate immediately, but decision-making authority migrates. Regional headquarters do not announce departures, but their functions are quietly reassigned elsewhere.
Taiwan is not a rule-setter in this framework. But because of its deep export dependence and tight integration into multinational supply chains, it absorbs the consequences more directly than many countries that actually sit at the OECD or G20 table. International institutions do not ask whether a country has a seat at the table; they ask only how dependent that country is on the system. On that measure, Taiwan has very limited room to maneuver. The problem is that policymakers are still operating as if the old rules apply.
Why Taipei's Response Has Been Inadequate
The Ministry of Finance has characterized GloBE adoption as a matter of "technical alignment." That framing misses the point entirely. Once tax incentives lose their effectiveness as a policy instrument, what tools remain? If Taiwan does not adopt a Qualified Domestic Minimum Top-up Tax — the QDMTT provision that allows countries to collect the top-up themselves rather than cede it to foreign governments — other countries will claim tax revenue that would otherwise stay in Taiwan. But even adopting a QDMTT only keeps the revenue onshore. It does nothing to restore Taiwan's international industrial competitiveness. Failing to say this plainly allows companies to keep making investment decisions on false premises.
The Ministry of Economic Affairs faces a more structural problem. Its industrial policy has long rested on trading tax concessions for investment. Under GloBE, whenever those tools push effective rates below the 15 percent floor, international mechanisms automatically neutralize their effect — the policy instrument is hollowed out from the outside. Unless the government pivots toward direct subsidies, R&D support, workforce investment, and infrastructure spending, Taiwan risks a situation in which public funds are disbursed while the corresponding tax benefit flows to foreign governments.
The deeper dysfunction is cross-ministerial. The Ministry of Finance remains anchored to tax instrument logic. The Ministry of Economic Affairs continues operating on the assumption that existing incentives remain effective. Between them, there is no testable, quantifiable, whole-of-government policy framework for what comes next.
Taiwan Must Name Its Industrial Priorities — Publicly
What is being avoided is the harder question: industrial prioritization. When tax incentives are no longer a low-cost policy tool, any form of industrial support becomes a real fiscal expenditure and a genuine resource allocation decision. Is Taiwan prepared to concentrate resources on reinforcing its semiconductor and AI supply chains? Does it intend to simultaneously develop biotechnology and critical materials? Or will it maintain broad support across sectors, accepting the resource dispersion that follows?
Without a public ranking and an honest account of the trade-offs, every official statement about "retaining investment" and "enhancing competitiveness" remains political language rather than policy choice.
GloBE does not ask about tax rates. It asks about responsibility. When institutional flexibility disappears, policy can no longer be built on the illusion of low-cost tools. If the Ministry of Finance is unwilling to lay out what this transition costs, and the Ministry of Economic Affairs continues to shield industry from an honest assessment of the risks, what Taiwan ultimately loses is not merely policy effectiveness — it is the state's capacity to shape its own industrial future.
*The author is an adjunct professor at the College of Management, Tunghai University. （Related： Taiwan Stock Market Hits 40,000: Young Retail Investors Drive Record-Breaking Rally ｜ Latest ）
