Digital Asset Tax Implementation Requires Incentives and Automated Reporting Systems

With the digital asset income tax set to take effect in January 2027, South Korea's National Assembly Budget Office has called for incentive measures to encourage domestic exchange usage and an automated calculation and reporting system linked to exchanges. The office highlighted that tax authorities face challenges tracking transactions involving overseas exchanges, personal wallets, and over-the-counter trades.

The digital asset income tax was introduced in December 2020 but delayed three times, now scheduled for implementation on January 1, 2027, for gains from transfers and rentals. Under current rules, digital asset gains are taxed as separate income with a 250 million won annual deduction before applying a 20% tax rate plus local income tax (totaling 22%).

While losses can be offset within the same tax period, they cannot be carried forward to future years. The Budget Office identified tax collection challenges as a key issue, noting that decentralized transactions and personal wallet over-the-counter trades make it difficult to verify transaction records or actual ownership.

Overseas exchanges also have no obligation to submit transaction data directly to South Korean tax authorities, creating potential gaps. While South Korea plans to join the OECD's digital asset information exchange system (CARF) in 2027 alongside 45 other jurisdictions, countries like Canada, Switzerland, Singapore, and Hong Kong will start in 2028, with the US following in 2029.

The Budget Office suggested strengthening tax authorities' tracking capabilities while promoting voluntary reporting for users of overseas exchanges not covered by CARF. It also proposed offering incentives for using domestic exchanges, similar to Japan's approach of applying a 20% separate tax rate and allowing loss carryforward over three years for registered exchanges.

To reduce taxpayer burden, the office recommended linking domestic exchanges with tax systems to automatically calculate acquisition costs and profits/losses. The National Tax Service established a Digital Asset Comprehensive Division in July and plans to complete a 'Virtual Asset Integrated Analysis System' by year-end to analyze transaction data.