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South Korea to Restore Top Corporate Tax Rate and Tighten Capital Gains Levy

Lee Jae Myung’s administration says the adjustment responds to a two-year decline in tax receipts combined with mounting U.S. tariff costs.

Government officials and ruling party lawmakers hold a closed-door policy meeting on tax reform at the National Assembly on July 29, 2025. (Yonhap)
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Overview

  • The government and ruling Democratic Party agreed on July 29 to raise the top corporate tax rate from 24% back to 25%, reversing Yoon Suk Yeol’s 2022 cut.
  • Cabinet and DP policy consultations also approved lowering the capital gains tax threshold for major shareholders from 5 billion won to 1 billion won.
  • Corporate tax revenue has fallen from a 103.6 trillion won peak in 2022 to 62.5 trillion won last year, prompting supplementary budgets heavily funded by bond issuance.
  • The opposition People Power Party warns the hikes will further burden firms already facing U.S. duties on autos, steel and potential semiconductor tariffs.
  • Parliamentary debate is set to begin this week amid ongoing ruling party discussions over separate dividend income taxation proposals.