What Is an ISA? — The Tax-Advantaged Account Every Korean Investor Should Know

President Lee announced today that the government would 'review the tax benefits of ISA accounts.' If you came across the term ISA in the news and wondered what it means, you're not alone. An ISA is a tax-advantaged account that every Korean investor should know about. Let's break it down, starting with today's news.

What Is an ISA?

ISA stands for Individual Savings Account (개인종합자산관리계좌 in Korean). Think of it as an all-in-one account where you can hold stocks, funds, and deposits together. The biggest perk is that interest, dividends, and investment gains earned inside the account can be tax-free up to a certain limit — saving you money you'd otherwise pay in a regular account.

How Does It Work?

You can open an ISA through any bank or brokerage app in Korea. Each person is limited to one ISA, and you can deposit up to 40 million won per year. There's one important condition: you must keep the account open for at least 3 years to receive the tax benefits. Close it early and the benefits disappear.

Inside an ISA you can buy stocks, ETFs, funds, and deposits. One standout feature is loss offset (손익 통산). This means if you lose 1 million won on Stock A but gain 2 million won on Stock B, you're only taxed on the net gain of 1 million won. A regular account doesn't give you this advantage.

Why Is a Review Needed Now?

The previous administration had been moving to scale back ISA tax benefits. When benefits shrink, the account becomes less attractive to individual investors — and that could lead to retail money flowing out of the Korean stock market. President Lee's announcement signals a rethink of that direction.

The announcement of a review doesn't mean the rules are changing immediately. Any actual change requires parliamentary debate and legislation, which takes time. So nothing is different today — no need to panic or rush.