Quick answer
After incorporating in South Korea, a company must obtain its Business Registration Certificate from the National Tax Service within 20 days. It must also stay current with tax filings, enroll employees in the four major social insurances and hold annual shareholders’ meetings. Meeting these obligations keeps the company in good standing and avoids penalties.
Registering your company in South Korea is only the first step.
To stay legally active, avoid penalties, and build credibility with Korean authorities, companies must meet ongoing post-incorporation compliance obligations.
At SMA Lawfirm, we guide foreign entrepreneurs through every step — from registration to long-term compliance — so you can focus on growing your business.
Table of contents
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Business Registration Certificate (사업자등록증) 📄
Within 20 days after incorporation, all companies must obtain a Business Registration Certificate from the National Tax Service (NTS).
Why it matters: This document is required to issue tax invoices, hire staff, and legally conduct business in Korea.
Tax Compliance & Filings 📊
Companies must stay current with Korean tax obligations:
- Corporate Income Tax (CIT): Progressive rates from 9–24%, plus 10% local surtax (effective top ~26.4%)
- Value-Added Tax (VAT): 10% standard rate on most goods and services
Filing Deadlines:
| Tax Type | Deadline |
|---|---|
| Corporate Income Tax | Annually, within 3 months after fiscal year-end |
| VAT | Quarterly |
| Withholding Tax | Monthly or quarterly |
Tip: Maintain Korean GAAP-compliant accounting records to reduce audit risk.
See also: Korea Business Tax Guide
Social Insurance Enrollment 👥
All employees must be enrolled in the four mandatory social insurance programs:
- National Pension Service (NPS)
- National Health Insurance (NHIS)
- Employment Insurance
- Industrial Accident Compensation Insurance
Non-compliance can lead to fines, back payments, and reputational damage.
Annual General Meeting (AGM) & Reporting 🏢
- Joint Stock Companies (JSC): Must hold annual shareholder meetings and submit audited financial statements
- LLCs: Fewer formalities but still must keep internal minutes and records
Even small entities should document decisions and maintain proper governance to avoid future disputes.
Labor Law Compliance 📑
Korea enforces strict labor protections:
- 52-hour maximum workweek
- Severance Pay: One month’s wages per year of service (after one year)
- Termination Rules: Must follow statutory procedures for notice and cause
Tip: Consider HR outsourcing or Employer of Record (EOR) solutions if you lack internal HR capacity.
Industry-Specific Licenses 🔑
Certain industries (F&B, fintech, healthcare) require license renewal or regular reporting.
Always confirm whether your sector has ongoing compliance obligations beyond initial incorporation.
Ongoing Compliance Checklist ✅
- File all tax returns on time (CIT, VAT, withholding)
- Renew or update licenses as needed
- Maintain proper GAAP accounting records
- Hold AGMs (if JSC) and record minutes
- Keep payroll, HR, and social insurance in full compliance
Conclusion & SMA Support 🚀
Registering a company in Korea is just the beginning — staying compliant is the key to sustainable growth and protecting your investment.
At SMA Lawfirm, we offer:
- Tax and accounting compliance management
- HR and labor law advisory
- AGM and shareholder resolution preparation
- Ongoing legal and regulatory monitoring
📩 Need help with compliance?
Contact SMA Lawfirm today to keep your Korean business compliant, credible, and penalty-free.
Official Sources
For authoritative reference, consult the following Korean government portals: