South Korea’s annual tax revenue is projected to exceed government estimates by a wide margin due to a massive semiconductor boom, according to figures outlined by the Ministry of Economy and Finance. Government officials originally anticipated an over-collection during supplementary budget negotiations in April. However, upcoming September tax re-estimations are expected to add significantly more, driven heavily by corporate tax installments from major chipmakers like Samsung Electronics and SK Hynix.
National Tax Revenue Reaches 475 Trillion Won
The Ministry of Economy and Finance will release its official tax re-estimation results at the end of September, a reporting schedule instituted to curb persistent forecasting errors by accounting for corporate tax interim prepayments. Originally, the government’s baseline budget pegged annual tax receipts at 390.2 trillion won. That figure was subsequently revised upward during the April supplementary budget as early semiconductor earnings flowed in.
When factoring in corporate tax prepayments due in August and a surge in securities transaction taxes spurred by a strong stock market rally through the first half of the year, total national tax receipts are projected to hit approximately 475 trillion won. Data covering January through July shows collected national taxes reached 274 trillion won, marking a 41.4 trillion won or 17.8% increase compared to the same period in the previous year. Corporate tax collections rose by 4.4 trillion won to reach 51.8 trillion won, while income tax climbed 12.2 trillion won to 89.3 trillion won, bolstered by increased real estate transactions and employee bonuses. Securities transaction taxes jumped 348.5% year-over-year to 8.2 trillion won.
According to brokerage forecasts, operating profits for Samsung Electronics and SK Hynix are estimated to reach 350 trillion won and 250 trillion won respectively, representing up to an eightfold increase from the prior year. While tax obligations on current-year profits are normally settled the following year, many corporations prepay a portion in August. The Ministry of Economy and Finance noted that final re-estimation figures remain unconfirmed.
Expansion of the Future Response Fund
A portion of the incoming excess tax revenue will fund the newly established Future Response Fund launching next year. The Ministry of Budget and Planning announced that the fund will draw from tax revenues exceeding the 10-year national tax average by 162.3 trillion won, alongside portions of this year’s tax surplus. Combined with anticipated budget surpluses next year, the total size of the Future Response Fund is projected to surpass 200 trillion won. The fund is earmarked for strategic growth pillars including semiconductors, artificial intelligence, regional and youth support, and educational talent development.

The expansion has drawn scrutiny over legislative oversight. Current regulations allow non-financial funds to adjust up to 20% of major expenditure items without parliamentary approval, and deficit coverage is permitted without restriction. The Future Response Fund, however, permits up to 30% of key item spending to be modified without parliamentary review. Critics argue this grants the executive branch excessive discretion to inflate spending.
Data provided to ruling party lawmaker Park Soo-young by the Ministry of Budget and Planning indicates that out of 131 Future Response Fund expenditure projects—including the basic child allowance and water supply infrastructure for the Honam region semiconductor cluster—125 projects, or 95%, were either fully funded at requested levels or increased. Only six projects faced budget reductions. State subsidy expenditures allocated under the fund's regional account permit unspent funds to be rolled over for up to three years, extending beyond the typical single-year rollover limit.
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