TSMC weighs multibillion-dollar Texas campus for chipmaking expansion

Taiwan Semiconductor Manufacturing Company is reportedly considering a second major US manufacturing campus, this time in Texas. The move would deepen its investment in American chipmaking at a moment when demand for AI chips shows no sign of cooling.

According to Bloomberg, the discussions are preliminary. The world’s most important contract chipmaker apparently wants to stack its American bets two states high.

What’s on the table

The potential site would likely sit near Dallas, in the region boosters have branded the “Silicon Prairie.” Reports indicate the campus could include as many as six advanced wafer fabrication facilities.

Each new Texas fab is projected to cost at least $20 billion. Multiply that across several facilities, and the total investment could reach tens of billions of dollars.

The Texas campus is also expected to feature more advanced production technologies than TSMC’s existing US operations.

Nothing is final yet. The plans have not been approved by TSMC’s board, and the company’s suppliers have reportedly not been told.

The Arizona baseline

Texas would supplement, not replace, TSMC’s sprawling Arizona footprint. The company has already committed $265 billion to its Arizona campus.

That figure includes an additional $100 billion added in July 2026. The expanded Arizona plan covers up to 12 facilities plus a research and development center.

On the Taiwanese side of the paperwork, the Ministry of Economic Affairs has approved $44 billion in TSMC capital investments in the US. Those approvals span seven applications since December 2020, with the most recent $20 billion tranche cleared in July 2026.

Why AI is driving the expansion

In the first half of 2026, US customers contributed approximately 75.64% of TSMC’s wafer revenue. Key clients include Nvidia, Apple, and AMD, all of which lean heavily on TSMC to manufacture their most advanced designs.

The tax credit cliff

There is a significant catch. The Texas project reportedly hinges on the extension of a 35% advanced-manufacturing tax credit tied to the CHIPS Act.

That credit is set to expire at the end of 2026. For a project where a single fab could cost $20 billion or more, a 35% credit is not a rounding error.

Whether Congress extends the credit could determine whether Texas becomes a construction site or remains a slide in a strategy deck.

What this means

For investors, the next concrete checkpoint is TSMC’s earnings call scheduled for October 15, 2026. The company is expected to offer insight into its overseas investment strategy there, which could clarify how serious the Texas talks are.

The risks are equally clear. The project depends on board approval, supplier readiness, and a tax incentive that currently has an expiration date.

The October 15 call and the fate of the tax credit are the two signals worth watching.