South Korea’s National Tax Service is developing an Integrated Virtual Asset Analysis System ahead of planned cryptocurrency taxation next year. The system, scheduled for completion by the end of this year, is designed to automatically trace more than 100 million transactions across over 100 blockchains and visualize the movement of funds, including transfers that pass through multiple chains and personal wallets. It will combine data from domestic exchanges with blockchain records to analyze taxpayers’ cryptocurrency holdings and transaction flows for up to five years. The agency also plans tools to reverse-analyze mixing transactions and detect activity such as splitting funds across multiple wallets or moving them repeatedly. The project is estimated to cost about 3 billion won ($2.1 million), with approximately 500 million won budgeted next year for operations and transaction-tracking software licenses. Industry experts caution that determining whether wallet movements represent trades or transfers, and calculating acquisition costs and taxable gains or losses, will remain difficult.