Oil Supplementary Budget Needs Precise Design to Protect Fiscal Health

A supplementary budget to address surging oil prices triggered by Middle East tensions is taking shape. Deputy Prime Minister and Minister of Economy and Finance Koo Yun-cheol said at an emergency economic ministers' meeting on the 11th, "We will utilize all available policy measures, including a supplementary budget, to minimize the impact of the Middle East situation on people's livelihoods, the economy, and industry." A day earlier, President Lee Jae-myung stated that "circumstances require an early supplementary budget." With the "oil supplementary budget" now virtually a foregone conclusion, discussions within the government appear to be accelerating. The supplementary budget could fund fuel subsidies, energy vouchers for vulnerable groups, support for small business owners and marginal companies, and fuel tax cuts, or compensate businesses for losses under a petroleum price cap system.

There is no reason to hesitate on a supplementary budget if it is necessary to respond to an unexpected crisis. With oil prices volatile and the won-dollar exchange rate threatening to breach 1,500 won, fiscal measures can serve as an effective shield to stabilize the economy and people's livelihoods. The Middle East war constitutes a significant variable that also meets the supplementary budget requirements under the National Finance Act. Furthermore, the government explains that a supplementary budget is possible without issuing government bonds, as increased tax revenues from corporate taxes and securities transaction taxes are expected this year due to the semiconductor boom and stock market vitalization. Market observers largely anticipate a supplementary budget of 10 trillion to 20 trillion won through excess tax revenues and expenditure restructuring.

The problem is that the supplementary budget's scale and funding sources remain as fluid as the uncertain course of the war. Despite U.S. willingness for an early end to the conflict, a prolonged war could turn "stagflation fears"—rising prices amid economic recession—into reality, reducing tax revenues and expanding the supplementary budget's size. This is why the government's rosy supplementary budget plan, premised on tax revenue optimism, warrants caution. The timing of the supplementary budget coinciding with the June 3 local elections is also a concern. Contrary to its intended purpose of supporting those affected by the "oil shock," there is a possibility the supplementary budget could devolve into populist spending under the guise of "regional livelihood support."

Public finances are the last line of defense for the national economy. Not a single won should be spent carelessly. Additional fiscal measures as a catalyst for overcoming the crisis must be deployed in a timely manner where they are most needed, such as targeted support for vulnerable groups, to maximize effectiveness. A precisely designed "oil supplementary budget" must be crafted—thoroughly stripped of regional budget insertions or populist handouts that could invite accusations of being "election-driven"—to achieve both fiscal soundness and livelihood stability.