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Trump’s threat of tariffs near 100% on some semiconductor imports did not become a blanket 100% duty on every chip from Taiwan. As of August 16, 2026, the United States has imposed a 25% tariff on a narrow category of advanced computing chips and derivatives, with broad end-use exemptions; a U.S.-Taiwan agreement also provides preferential tariff treatment for Taiwanese goods and semiconductors. The policy is a negotiating tool tied to investment and supply-chain diversification, not proof that TSMC is leaving Taiwan.
What is the semiconductor tariff policy now?
The distinction is between a public threat and an implemented duty. In August 2025, President Donald Trump discussed tariffs of roughly 100% on chips from companies that did not make, or commit to making, chips in the United States. That was a threat, not the rate subsequently imposed across all semiconductor imports. Contemporaneous reporting covered the remarks.
On January 14, 2026, the White House issued a Section 232 proclamation imposing a 25% ad valorem tariff on a defined category of advanced computing chips and derivative products. It took effect at 12:01 a.m. Eastern time on January 15 for covered products entered for consumption or withdrawn from warehouse. The duty is additional to other applicable duties unless the proclamation says otherwise. The proclamation also directed negotiations that could lead to broader, significant semiconductor tariffs later; it did not itself impose a universal chip tariff. Read the proclamation.
| Date | Action | What it means |
|---|---|---|
| August 2025 | Trump’s public tariff threat | Roughly 100% was discussed for companies not making or planning to make chips in the United States; this was not the January 2026 tariff rate. |
| January 14–15, 2026 | Section 232 proclamation | A 25% tariff began on specified advanced computing chips and derivatives, with broad exemptions. |
| February 12, 2026 | U.S.-Taiwan trade agreement signed | Set preferential treatment for Taiwanese-origin goods and future semiconductor-related Section 232 actions; entry into force depends on remaining domestic formalities. |
| July 16, 2026 | Administration announcement on TSMC | The administration described an additional $100 billion commitment, taking its stated cumulative U.S. investment figure to $265 billion. |
Which chips face the 25% tariff?
The proclamation defines covered products in its annex. It is not a tariff on every semiconductor, every TSMC product, or every chip imported from Taiwan. Coverage turns on the product’s classification and the rules in the proclamation, while exemptions depend in part on end use and whether the use is considered beneficial to the U.S. technology supply chain.
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Among the listed exempt uses are U.S. data centers, research and development, startups, non-data-center consumer applications, civil industrial applications and public-sector applications. The proclamation also allows other uses deemed beneficial to the U.S. technology supply chain. These are not interchangeable with a blanket exemption for a manufacturer or country: an importer must establish that a particular product and use qualify under the operative rules.
Customs treatment can also depend on whether goods enter through a foreign-trade zone and are admitted with privileged foreign status. The proclamation does not allow drawback of the duties it imposes. For a specific shipment, importers need the tariff classification, origin determination, end-use documentation and current Customs and Border Protection guidance—not just the chipmaker’s nationality or the fact that a chip is described as an AI processor.
Why Taiwan and TSMC are so exposed
TSMC is a contract foundry: it fabricates chips designed by other companies. That makes Taiwan central to the supply of advanced processors used in AI systems and other electronics, but the exposure extends beyond finished chips. Wafer fabrication, advanced packaging, equipment, materials, design relationships and electronics assembly all contribute to whether a product can be made and delivered.
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The U.S. Commerce Department says the U.S. share of global wafer-fabrication capacity fell from 37% in 1990 to below 10% in 2024. Those are Commerce Department figures, presented as part of the administration’s case for rebuilding domestic production—not an independent estimate in this article. Commerce’s fact sheet frames the decline as a national-security vulnerability.
For U.S. buyers, the relevant question is not simply whether a chip is “Taiwanese.” A Taiwanese company may make products in several countries, and a chip can pass through multiple borders and manufacturing stages. A tariff decision can turn on the imported item’s classification and origin, its end use, any applicable exemption and the rules in force at entry.
What did Taiwan secure in its trade agreement?
The United States and Taiwan signed their Agreement on Reciprocal Trade on February 12, 2026. USTR says the United States will apply the higher of the normal most-favored-nation tariff or a 15% rate to originating Taiwanese goods. That formulation is not a promise that every product will be charged exactly 15%, nor does it make all Taiwanese semiconductors exempt from the January proclamation.
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The agreement also gives Taiwan preferential treatment in future Section 232 measures involving semiconductors and semiconductor-manufacturing equipment. USTR describes Taiwan’s commitments to eliminate or reduce 99% of tariff barriers affecting U.S. exports, facilitate major purchases of U.S. energy, aircraft and industrial equipment, and work with the United States on industrial parks and industry clusters. The agreement’s fact sheet says domestic formalities remain before it enters into force, so the signed text should not be confused with fully completed implementation. USTR’s fact sheet sets out the terms; USTR’s signing announcement confirms the date.
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The company’s $165 billion plan
In March 2025, TSMC said its planned U.S. investment would rise from $65 billion to $165 billion. The plan covered three additional fabrication plants, two advanced packaging facilities and an R&D center, centered on its Arizona operations in Phoenix. TSMC said its first Arizona fab had entered volume production in late 2024 and that the site had more than 3,000 employees when it made the announcement. These are company statements about plans and operating status, not a claim that all announced facilities are already built or producing. TSMC’s announcement details the plan.
The July 2026 administration figure
On July 16, 2026, the administration announced a further $100 billion TSMC commitment and described the cumulative U.S. total as $265 billion. The figure should be attributed to the administration’s announcement: the primary TSMC material cited above confirms the earlier $165 billion plan, while the July total is reported in a NIST/Commerce release. The announced commitment is not $265 billion of completed investment or operating capacity. Reporting on the expansion described additional advanced manufacturing and packaging facilities; Reuters reported at least four more 2-nanometer fabs, a detail that remains a reported plan rather than evidence of completed production. Reuters coverage discusses the additional commitment.
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Does Arizona production remove tariff exposure?
No automatic exemption follows from TSMC building some capacity in Arizona. U.S.-made output is not imported in the same way as a chip made abroad, but TSMC continues to operate in Taiwan and other locations, and tariff treatment attaches to particular imported products under applicable origin and customs rules. The proclamation’s end-use exemptions are not a general TSMC exemption, while the U.S.-Taiwan agreement’s preferential treatment still has to be applied under its terms and any implementing guidance.
Nor does domestic wafer fabrication make the full chain domestic. Design, wafers, packaging, testing, equipment and materials may be located in different countries. Moving packaging or a selected fab stage does not by itself settle the origin of every imported product. Businesses assessing exposure need to review product classification, manufacturing steps and origin rules alongside end-use eligibility and the applicable tariff schedule.
Who could gain, and who could bear the cost?
The intended benefit is more semiconductor capacity in the United States and less dependence on a concentrated overseas supply chain. Whether that produces lower risk without materially raising costs depends on construction, supplier depth, workforce availability, yields and the ability to qualify output for customers.
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| Group | Potential effect | Why it matters |
|---|---|---|
| U.S. fab builders, equipment suppliers and industrial-service firms | More demand | New fabs, packaging plants and related infrastructure require construction and specialized equipment. |
| U.S. chip designers and buyers with qualifying uses | Potentially closer supply and tariff relief | Domestic production or a valid exemption could reduce exposure to the covered duty, although not every imported component will qualify. |
| Importers of covered chips without an exemption | Higher landed cost | The 25% duty can add to other applicable duties; companies may absorb it, redesign sourcing or pass some cost on. |
| AI-server makers, cloud providers, electronics firms and consumers | Possible indirect cost or delay | Higher chip costs could move through supply chains, but the size and timing of any pass-through are not established. |
| Taiwanese suppliers and Taiwan’s industrial base | Pressure to duplicate capacity abroad | U.S. investment can diversify production while shifting some investment, talent and supplier activity away from Taiwan. |
| U.S. fabs and their customers | Higher build or operating costs, or slower scaling | Tariffs on inputs and limits in labor, utilities, packaging and supplier capacity could complicate expansion. |
Tariffs can change sourcing incentives, but they do not make new capacity appear quickly. Reuters has reported construction-worker shortages as TSMC ramps up its Arizona investment, a reminder that building fabs depends on labor and execution as well as financing. The report also describes strong multiyear AI-chip demand.
Does TSMC’s expansion mean Taiwan is losing its role?
Not on the evidence available. Taiwan’s president said in February 2026 that companies would decide where to invest and that the largest share of production capacity would remain in Taiwan. Reuters reported the remarks.
More U.S. capacity may strengthen supply resilience and the bilateral relationship, while also raising the question of whether a more geographically distributed semiconductor industry dilutes Taiwan’s strategic leverage—the issue often described as the “silicon shield.” But building fabs abroad does not instantly recreate Taiwan’s manufacturing density, supplier networks, engineering labor or process know-how. Arizona capacity can reduce some U.S. dependence without replacing Taiwan’s broader ecosystem or eliminating risk from a disruption in the Taiwan Strait.
Quick Recap
What to watch next
- Implementation rules: U.S. Customs and Border Protection tariff classifications, rulings and end-use documentation requirements will determine how the January proclamation applies to actual shipments.
- Broader Section 232 action: The January proclamation left open the possibility of significant wider semiconductor tariffs after negotiations. A new formal action, not another public threat, would change the legal tariff position.
- Trade-agreement status: Watch for completion of domestic formalities and the operative U.S.-Taiwan tariff schedule, including how preferential semiconductor treatment is administered.
- Construction versus output: TSMC’s investment announcements should be measured against facility completion, equipment installation, customer qualification, yields and commercial output.
- Supply-chain bottlenecks: Labor, utilities, packaging capacity and suppliers will affect how quickly Arizona can contribute meaningful production.
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