The Section 48D Gravy Train Should End - The Unseen and The Unsaid

The 48D sunset is not a budget line-item—it is a structural repricing of American fab economics. Technical cascade: Strip the 25% investment credit and the IRR math for sub-2nm greenfield projects collapses outright. ASML's EUV backlog and Lam's etch pipeline absorb the first shock. More insidiously, CoWoS-class advanced packaging capex that rode the 48D umbrella loses its funding anchor, destabilizing the entire back-end buildout. Compliance and supply-chain exposure: The 'unseen' damage is the embedded assumption. Firms that locked multi-year capex schedules around 48D now face contract-renegotiation cascades. Production gravity swings back toward Taiwan, China and Japan, re-concentrating the supply chain and eroding the very resilience the CHIPS framework was engineered to create. Market positioning: TSMC will front-load Arizona Phase 2 to harvest remaining credits before the window closes. Samsung likely decelerates Texas and re-anchors in Korea. Intel is the most exposed—its US foundry thesis is structurally dependent on subsidy anchoring; remove 48D and the Foundry P&L narrative breaks. 12-to-24-month trajectory: Expect an equipment-order vacuum, a consolidation window among toolmakers, and a permanent 'moral-hazard premium' baked into the next generation of industrial policy. Future incentive frameworks will carry hard utilization covenants and export-compliance teeth that 48D never possessed. The marginal utility of subsidies, from this point forward, is in structural decline.