Top 5 Customs Valuation Mistakes: How to Avoid Overpaying at the Border in 2026

In 2026, customs control has become fully digital. AI systems within Customs (FTS) identify discrepancies in documents in fractions of a second. One of the most painful points for business remains customs value.

An error in determining it leads not only to additional duties but also to administrative cases regarding inaccurate declaration.

Mistake 1: Ignoring Transportation Costs in Value Structure

Many importers forget that according to Incoterms rules, transport costs to the border must be included in the base for calculating duties.

• Risk: Customs will "correct" the value using their own tariffs, which are always higher than real ones.
• Solution: Always clearly separate product value and freight in your invoices.

Mistake 2: Undervaluing Prices Without Documentary Justification

Attempting to save on duties through grey imports and undervaluing invoices in 2026 is a dead end. AI systems instantly compare your price with global quotes.

• Risk: CVA (Customs Value Adjustment) and deposits required during the audit period.
• Solution: Have the export declaration from the country of origin and the manufacturer's price list ready.

Mistake 3: Incorrect Handling of Licensing Fees (Royalties)

If you are importing branded goods and pay separately for the right to use the trademark, these amounts must be included in the customs value.

• Risk: Accusations of concealing part of the product's value.
• Solution: Consult with a VED expert before signing a license agreement.

Mistake 4: Lack of "Transaction Value" Method Documents

Many rely on customs accepting the contract price ("Method 1") by default. However, if you lack proof of payment (bank statement), customs is entitled to move to comparative pricing methods.

• Risk: Duties increasing by 1.5–2 times.
• Solution: Save all payment confirmations, even if they are Yuan settlements or USDT.

Mistake 5: Technical Errors in the Declaration (DT)

Simple typos in net/gross weight or HS codes can be interpreted as an attempt to undervalue.

• Risk: Cargo delays at bonded warehouses and fines.
• Solution: Use a verified customs broker and a double-check system for all documents.

How Onex Helps Reduce Customs Risks?

At Onex, we understand that international trade is not just about payments; it's about flawless documentation. We help our clients build transparent schemes that raise no questions from authorities.

What we offer:

1. Preliminary audit of contracts and invoices.
2. Consulting on customs value calculation and valuation methods.
3. Transparent financial routes that confirm the reality of your transactions.

Don't let document errors eat your profits. Contact our Telegram Manager for a professional audit of your import case.

References & External Insights

• Onex Global Trade Insights
• International Chamber of Commerce