TSMC posted third-quarter revenue of NT$1.49 trillion for the July–September 2026 period, a 51% increase year over year, the company disclosed on October 8. The figure confirms that demand for leading-edge silicon continued to accelerate through the quarter without a seasonal cooldown.

September consolidated revenue came in at approximately NT$511.86 billion, or roughly US$16.1 billion. That result was up 54.6% from NT$330.98 billion in September 2025 and down just 0.6% from August 2026, when monthly sales stood at their record level.

How did the quarter build up?

The arithmetic of the quarter is straightforward. Two of the three months in the period — August and September — generated sales above the NT$500 billion mark, with September landing within one percentage point of the all-time monthly high set the month before.

The comparison base explains part of the growth rate. In September 2025, TSMC reported NT$330.98 billion in revenue; twelve months later, the same month generated nearly NT$181 billion more. Annual growth above 50% at a company of this scale puts the third quarter among the strongest in TSMC's history.

What does the monthly figure signal?

The near-flat sequential movement — down 0.6% from August — indicates that wafer demand held at peak throughput rather than tapering after the summer. For a foundry whose capacity utilization is watched as a proxy for the broader AI and smartphone supply chain, staying close to record monthly output into late September suggests order visibility remained firm through the end of the quarter.

What are the reference points?

The reported numbers establish three benchmarks for the quarter:

• Q3 2026 consolidated revenue: NT$1.49 trillion, up 51% year over year
• September 2026 revenue: NT$511.86 billion (approx. US$16.1 billion), up 54.6% from September 2025
• Sequential change in September: down 0.6% from August 2026, which itself was a record month

Why the NT$500 billion threshold matters

Monthly revenue above NT$500 billion was, until recently, uncharted territory for the foundry. Sustaining that level for consecutive months in August and September demonstrates that the third quarter's 51% expansion was not driven by a single outsized month but by persistently elevated shipments across the period.

The company released the figures on October 8, 2026, in line with its standard monthly reporting schedule. TSMC typically follows monthly revenue disclosures with a full quarterly review covering gross margin, capacity, and segment breakdowns; those details were not part of the October 8 release.

The dollar conversion cited by the company — approximately US$16.1 billion for September — provides the reference point international customers and investors use when tracking TSMC's run rate against global semiconductor market forecasts.

What comes next?

The third-quarter close sets a high base for the final three months of 2026. Whether October sales hold near the NT$500 billion line will indicate whether demand momentum extends into the year-end build cycle or begins to normalize from current peak levels.