South Korea Proposes Record $597 Billion Budget to Supercharge AI and Chips
President Lee Jae-myung pivots to expansionary fiscal policy, leveraging a semiconductor tax windfall to fund massive infrastructure and AI growth.
South Korea has proposed a record US$596.9 billion budget for 2027 to aggressively accelerate its artificial intelligence and semiconductor capabilities. The plan marks a significant shift toward expansionary fiscal policy under President Lee Jae-myung, representing a 12.8% increase over the 2026 budget.
The proposal is fueled by a massive tax windfall stemming from a stock market rally and the surging profitability of semiconductor giants Samsung Electronics and SK Hynix. Total national tax revenue is projected to rise to approximately US$425.9 billion (584.4 trillion won), with corporate tax receipts expected to more than double to US$157.9 billion (216.7 trillion won). To manage this surplus, the government intends to establish a "Future Response Fund" using US$118.3 billion (162.3 trillion won) in excess revenue, with US$33.1 billion (45.4 trillion won) earmarked for 2027 to support education, youth welfare, and future growth engines.
The Infrastructure Bet
Unlike many global AI strategies that focus primarily on software and model development, Seoul is treating AI as a physical industrial challenge. The budget allocates US$15.5 billion (21.3 trillion won) specifically for the critical infrastructure required to sustain chip production, including industrial water systems, power grids, and logistics networks. Additionally, the government has set aside US$1.9 billion (2.6 trillion won) for a dedicated special semiconductor budget.
This strategic pivot comes as global demand for high-bandwidth memory (HBM)—essential for AI infrastructure—continues to climb. By investing in the underlying utilities of chip manufacturing, South Korea aims to solidify its lead in the hardware layer of the AI stack, ensuring that power and water constraints do not bottleneck production capacity.
Fiscal Implications
Despite the record spending, the administration expects the country's fiscal health to improve. The debt-to-GDP ratio is estimated to decline from 51.6% in 2026 to 48.3% in 2027. This allows the government to move away from previous austerity measures and utilize industry wins to fund state-led technological acceleration.
However, not all market observers are fully satisfied with the approach. Kong Dong-rak, an analyst at Daishin Securities, suggested that the government could have further supported the market by implementing a larger reduction in bond sales.
What's Next
Industry watchers will now monitor whether these infrastructure investments can be deployed quickly enough to keep pace with the rapid evolution of AI hardware. The success of the plan depends on the continued dominance of South Korean firms in the HBM market and the government's ability to execute large-scale utility projects without significant delays. While the fiscal capacity is now secured, the transition from a software-centric AI race to a physical infrastructure race puts a new premium on South Korea's logistical efficiency.