Tax Litigation / Customs / Tax Criminal Defense

The Tax Practice Group at Law Firm SIWOO is composed of attorneys with extensive experience in the highly specialized field of taxation. Successful resolution of tax matters requires a sophisticated command of tax law, administrative law, tax accounting, and general civil and commercial law.

We provide comprehensive legal services covering the entire spectrum of tax issues, including tax advisory, administrative appeals, litigation against unfair tax assessments, recovery of overpaid taxes, and tax criminal defense.

Our attorneys adopt a hands-on, team-based approach, managing every stage of a case directly—from initial consultation and legal research to strategy development and closing. For complex, multi-layered cases requiring a broader perspective, we offer a cost-effective "One-Stop Service" through close strategic collaboration with leading accounting, tax, and customs firms, ensuring the best possible outcomes for our clients.

Practice Areas

Tax Litigation & Appeals: Representation in administrative lawsuits and tax tribunal proceedings.

Tax Administrative Appeals: Handling pre-assessment reviews, filing of objections, and requests for examination and adjudication.

Tax Advisory: Comprehensive advice on domestic taxes, customs duties, and local taxes.

Tax Criminal Defense: Legal defense for violations of the Punishment of Tax Offenses Act and regulations related to foreign exchange transactions.

Tax Audit Response: Strategic representation and defense during tax investigations by the National Tax Service (NTS).

Tax Consulting: Strategic planning for inheritance/gift tax, family business succession, capital gains, and international tax transactions.

Rectification Litigation: Administrative litigation to cancel refusals of rectification requests (claims for correction).

Tax Refund Litigation: Legal actions for the recovery of overpaid taxes and handling of erroneous payments.