How to Calculate Import Duties for Cross-Border Shopping — US, Japan, and China

The duty-free threshold for imports from the US, Japan, and China is all 50 (CIF basis). The formula: (taxable value x tariff rate) + (taxable value + tariff) x 10% VAT. FTA partner countries may qualify for 0% tariff with a certificate of origin.

How to Calculate Import Duties for Cross-Border Shopping — US, Japan, and China

Key Summary Korea's import duty threshold (목록통관) is $150 from most countries, $200 from the US (FTA benefit). Items below these thresholds clear customs duty-free. Above the threshold, customs duty (8–20%), VAT (10%), and in some cases individual consumption tax apply. Actual cost can increase by 15–35% above listed price.

Korea Import Duty Thresholds (2026)

Origin Country	Duty-Free Threshold	Special Rules
United States	$200 per shipment	Korea-US FTA benefit
China	$150 per shipment	Most items dutiable above threshold
Japan	$150 per shipment	Some electronics attract 8–13% duty
EU Countries	$150 per shipment	Korea-EU FTA reduces some rates

Full Cost Calculation Formula

Total Import Cost = Product Price
                  + Shipping
                  + Customs Duty (Product × duty rate%)
                  + VAT [(Product + Shipping + Duty) × 10%]
                  + Individual Consumption Tax (luxury/alcohol/tobacco)

Worked Example: $300 Electronics from the US

Item	Amount
Product price	$300
International shipping	$30
Customs duty (8%)	$24
VAT 10% of (300+30+24)	$35.40
Total landed cost	$389.40
Hidden import cost	+$89.40 (29.8% above product price)

Items with Higher Duty Rates

Clothing: 13%. Bags/leather goods: 8–13%. Cosmetics: 6.5–8%. Electronics: 0–8% (varies by HS code). Supplements/vitamins: 6.5–8%. Always check the specific HS tariff code for the product before ordering.