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Seller guides
Fees, tax, sourcing and ads. The rules behind the calculator numbers, explained with examples. Every guide ends with a calculator you can try right away.
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Marketplace fees
Naver Smart Store Fees Explained
Naver Pay order management fees, the sales fee introduced in June 2025 and the end of the inflow fee, with examples.
Read → Marketplace feesCoupang Sales Commission by Category
Rates by category, the 3.3% shipping fee, the monthly service fee and how Rocket Growth differs.
Read → TaxVAT Guide for Simplified Taxpayers
Value-added rates by industry, the 0.5% purchase credit, the 48 million KRW exemption, filing dates and switching to general.
Read → Sourcing · Import1688 Import Cost and Customs Guide
Customs value, duty and import VAT, FTA and KC certification checks, and personal vs commercial imports.
Read → AdsBreak-even ROAS Made Simple
Break-even ROAS straight from your profit margin, ROAS vs ACoS, and maximum cost per click.
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