In South Korea, tax obligations are divided between the central government (National Taxes) and local municipal governments (Local Taxes). While many foreign investors focus solely on national taxes like CIT and VAT, the cumulative weight and administrative complexity of local taxes should not be underestimated. Failing to manage these can lead to unexpected tax liens or operational disruptions.
01.The Two Faces of Local Tax: Assessed vs. Self-Reported
Local taxes in South Korea generally fall into two categories:
Assessed Taxes (Bill-based): The main one is the Registration and License Tax (license portion, 등록면허세 면허분), levied on business licenses, permits, registrations and similar authorizations. When a license is first granted, the tax is self-reported and paid before the license certificate is issued. After that, a license with no fixed term or a term longer than one year is treated as renewed every January 1, and the local government sends an annual bill payable by the due date its ordinance sets. Because the annual charge arrives as a bill, it needs little active management beyond making sure it is paid.
Self-Reported Taxes (High Importance): Crucial business-related taxes must be calculated and reported by the company itself.
Local Income Tax on Payroll: Every time you pay your employees and withhold national income tax, you must also calculate and pay a 10% local income tax surcharge.
Corporate Local Income Tax: After filing your Corporate Income Tax (CIT) in March, a corresponding local income tax must be filed and paid to the municipality in April.
02.Wetax: The Secondary Digital Gateway
Just as Hometax is the portal for national taxes, Wetax is the dedicated system for all local government taxes.
Separate System, Separate Learning: Wetax is an entirely different platform with its own interface, login requirements, and reporting logic.
Technical Hurdle: Like Hometax, it operates exclusively in Korean and requires specialized digital certificates for access. Managing two different high-security portals (Hometax and Wetax) simultaneously is a significant administrative burden for a small foreign office.
03.Why Local Tax Management is Critical
The amounts involved in payroll-related and profit-related local taxes are not negligible.
The Complexity of Reporting: Because local tax reporting is often triggered by national tax events, any discrepancy between the two filings can lead to audits or late-payment surcharges from the local district office (Gu-cheong).
The Administrative Burden: Keeping track of different deadlines—national taxes on the 10th and various local taxes throughout the month—requires constant vigilance.
04.Integrated Support: One-Stop Tax Management
To simplify your operations, we provide an integrated service that covers both national and local obligations:
Unified Reporting: When we handle your payroll or corporate tax, we automatically process the corresponding local tax filings through Wetax.
Consolidated Payment Guides: You don't have to worry about two different systems. We provide you with a single, clear payment guide that covers both your national and local tax liabilities.
Agency Representation: As your authorized tax agent, we handle all communication with local district offices, ensuring that your business remains in good standing at both the national and municipal levels.
Summary
South Korea's dual tax system—National and Local—requires a dual-track management strategy. By outsourcing your tax affairs to us, you ensure that your local tax obligations are handled with the same professional precision as your national taxes, preventing small administrative oversights from turning into costly legal headaches.
Statutory basis — Local Tax Act Articles 23(2) and 24(ii): the Registration and License Tax on licenses, permits, registrations and similar authorizations; Article 35(1)–(2): self-reporting and payment before the license certificate is issued, then annual assessment for licenses with no fixed term or a term over one year; Article 103-13: local income tax withheld at 10% of the income tax withheld, payable by the 10th of the following month; Article 103-23(1): corporate local income tax return within four months of the end of the month in which the fiscal year ends.
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