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South Korea's appeals court maintained former President Yoon Suk Yeol's 18-month suspended sentence for spreading false information during his campaign, a verdict that may compel his opposition party to repay around US$30 million. This decision marks a symbolic setback for the disgraced ex-leader, who is already serving a life sentence for insurrection. In December 2024, Yoon declared martial law, ordering the military to shut down parliament, but lawmakers resisted, leading to his impeachment and removal from office.

The 65-year-old was convicted of violating election laws by making false statements, including claiming a false connection to a shaman. The presiding judge at the Seoul High Court stated that Yoon had a responsibility to provide voters with accurate information, but he repeatedly resorted to excuses throughout the investigation and trial.

Wearing a white shirt and dark jacket, Yoon exhibited no emotion upon learning that his appeal was rejected. His legal team deemed the ruling "unjust" and a penalty imposed without proper context, stating they would appeal to the Supreme Court. If upheld, the decision could force the People Power Party, Yoon's former party, to return 39.7 billion won (US$29.6 million) to the National Election Commission.

This would also potentially invalidate Yoon's 2022 presidential election victory. Under South Korean law, the National Election Commission reimburses parties for campaign expenses if their candidate secures at least 15% of the vote, a measure intended to curb excessive political spending. However, if a candidate faces imprisonment or a fine of at least one million won for election-related offenses, their candidacy is deemed invalid, and their party must return the funds.

The repayment amount for the People Power Party represents approximately one-third of the party's current assets, according to election commission records.