South Korea to Tax Crypto Gains at 22% Starting 2027

The National Tax Service (NTS) announced in late April 2026 that it is actively preparing to accept crypto income declarations. As a result, the first filings will come due in May 2028 as part of the annual comprehensive income tax process.

How the South Korea Crypto Tax Works

The tax charges a flat 22% rate on net annual gains from virtual assets. Specifically, that breaks down to 20% national income tax plus 2% local income tax. The government only taxes profits above the KRW 2.5 million exemption threshold.

Taxable events include selling, trading, and lending crypto. Because the regime uses a global taxation method, investors can offset losses against profits across all virtual assets. In addition, the Income Tax Act classifies crypto gains as “other income.”

Unlike a progressive system, the rate stays flat. So a trader earning KRW 10 million in profit pays the same 22% rate as one earning KRW 100 million, after the exemption.

Three Delays Over Six Years

South Korea first proposed the crypto tax in 2020, targeting a 2022 start date. According to CoinFomania, lawmakers pushed back the plan three times because of market volatility, insufficient infrastructure, and heavy industry pressure.

The first delay moved the deadline to 2023. Then the second shifted it to 2025. The third and final postponement locked the date at January 1, 2027.

Each delay reflected political pressure from retail investors and the broader crypto industry. Meanwhile, the government maintained the KRW 2.5 million threshold throughout all three revisions to protect small-scale investors.

NTS Builds AI-Powered Enforcement

The National Tax Service is not just waiting for the deadline. According to reports from CryptoRank, the NTS is developing an AI-powered tracking system for crypto transactions.

The agency is also preparing to implement the Crypto-Asset Reporting Framework (CARF). This OECD-backed international data exchange standard will launch pilot operations in November 2026, just two months before the tax takes effect.

In its April 2026 statement, the NTS said: “Since the law has stipulated that cryptocurrency income will be taxed starting next year, we are preparing to accept relevant declarations starting from the comprehensive income tax declaration in May 2028.”

Crypto Capital Gains Tax Regimes (as of May 2026)

Opposition Pushes to Scrap the Tax

Not everyone supports the policy. The People Power Party, South Korea’s main opposition, has filed a bill to permanently eliminate the crypto tax. Specifically, lawmaker Song Eon-seok argued that “taxing crypto but not stocks is a double taxation problem.”

The concern centers on fairness. Currently, most individual stock investors in South Korea pay no capital gains tax. As a result, critics argue that singling out crypto creates an uneven playing field and could drive capital offshore.

Retail sentiment on social media and Korean crypto communities runs largely negative. In particular, many traders express frustration about potential capital flight. Some Korean crypto influencers already discuss tax-planning strategies ahead of the 2027 deadline.

Market Reaction Remains Muted

Despite the confirmation, markets show no strong reaction so far. Korean won trading volumes on Upbit and Bithumb remain stable, according to CoinGecko data and local exchange reports.

On-chain data reveals no large-scale outflows from major Korean exchanges. Similarly, the kimchi premium, which tracks price differences between Korean and global exchanges, shows no significant movement tied to this news.

That calm likely reflects the fact that traders have had years to price in the tax. After all, the January 2027 date has stood firm since the last postponement.

What Remains Unknown

Several key questions still lack answers. For instance, the NTS has not clarified how it will handle DeFi transactions or NFT gains. The agency is also still developing cross-border transfer tracking mechanisms.

The outcome of the opposition bill remains uncertain as well. If the People Power Party gains enough support, the tax could face yet another challenge. For now, the government continues to proceed as planned.

South Korean crypto holders should prepare for the January 2027 start date. The first filing window opens in May 2028, so investors have about two years to organize records and consult tax professionals.