According to CoinMeta, as reported by Nexblock, in the first half of 2026, the trading volume of South Korea's five major Korean-won-based cryptocurrency exchanges decreased by 54.6% year-on-year, to approximately $366.58 billion. From July 1st to 27th, the cumulative trading volume of these five exchanges was about 17.34 trillion Korean won, a decrease of 16.9% compared to the same period in June. Among them, the market share of Upbit increased from 62.3% to 67.4%. South Korea's Finance Minister Koo Yun - cheol confirmed that the government will start imposing a cryptocurrency tax on January 1, 2027, with those earning more than 2.5 million Korean won per year facing a 20% national tax.