Compliance
Coming Exit Tax / Reporting Obligations for HNWIs in South Korea – What You Need to Know Before Moving Abroad
If you’re a high-net-worth individual planning to change residence or citizenship, South Korea’s exit tax (국외전출세) and expanded disclosure rules are more important than ever.
By NomadicTax Research Team • 5-8 min read • August 31, 2026
## What Is South Korea’s Exit Tax (국외전출세)?
- **Applicability**: If a resident who is a *major shareholder* leaves South Korea permanently (or changes residence/citizenship), certain domestic assets may be treated as if sold upon departure. This is to prevent tax avoidance by taking advantage of foreign countries with lower or no capital gains tax. ([mof.go.kr](https://www.mof.go.kr/upload/udata/2019.pdf?utm_source=openai))
- **Scope of assets**: Includes ownership in domestic stock of companies with high proportions of real‐estate assets (especially if over 50%, or 80% for some businesses like golf courses/ski resorts). ([mof.go.kr](https://www.mof.go.kr/upload/udata/2019.pdf?utm_source=openai))
## Key Recent Developments
- **Foreign trust & account disclosure updates**: As of mid-2026, South Korea requires reporting of **overseas financial accounts** and **overseas trusts** by residents and domestic entities. This aligns with global crackdown on assets held abroad. ([nts.go.kr](https://www.nts.go.kr/nts/na/ntt/selectNttInfo.do?nttSn=1352026&utm_source=openai))
- **Penalties & incentives**: For reporting violations involving overseas accounts, substantial rewards are offered for whistleblowers—with payouts depending on the magnitude of the violation. ([nts.go.kr](https://www.nts.go.kr/nts/na/ntt/selectNttInfo.do?nttSn=1352026&utm_source=openai))
## Planning Considerations for HNWIs
- Review whether you meet exit tax criteria: major shareholder status, domestic business models with high real estate ratios.
- If planning to leave, **consider selling or restructuring ownership** before applying for resident status change.
- For overseas accounts/trusts: ensure compliance with reporting obligations, keep records of balances and transactions.
- Look into tax treaty benefits: they might reduce or eliminate taxes on certain kinds of income/assets post-exit. But exit tax often built to bypass treaty reductions.
## Case Example
- **Mr. Kim**, holding 100% shares in a domestic company whose assets are 60% real estate, plans to move to Singapore. Under exit tax, those shares may be deemed disposed of at fair market value on the date of his residence change. Gain will be taxed in Korea even though Mr. Kim no longer resides there.
- **Ms. Park**, with foreign bank accounts exceeding the threshold and overseas trust set up, must file disclosures; failure may lead to penalties and possible whistleblower exposure under the law. ([nts.go.kr](https://www.nts.go.kr/nts/na/ntt/selectNttInfo.do?nttSn=1352026&utm_source=openai))
## Steps to Take Now
- Calculate fair market value of your domestic business and real property-rich companies.
- Consult local tax counsel for possible structuring (e.g., holding companies, trust arrangements).
- Prepare documentation for overseas assets—statements, account balances, trust documents.
- Monitor legal changes: exit tax rules may tighten or valuation rules may evolve.
**Conclusion:** For HNWIs considering leaving South Korea or moving assets abroad, the exit tax regime and emerging disclosure obligations are central. Early planning and full compliance are critical to avoid unexpected liabilities.
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NomadicTax Research Team