---
title: "What are the breakdowns of customs declaration agency fees for imported diesel and what is the current average market reference price?"
description: "Many enterprises importing diesel encounter problems such as hidden charges and inflated quotes due to unclear understanding of the composition of customs declaration agency fees，which leads to excess customs clearance costs and even the risk of port detention. As an agency with 20 years of experience，Zhongshen will break down the composition of agency fees，provide transparent quotes based on the latest 2026 policies and actual port conditions，and help enterprises hedge against additional costs..."
url: "https://www.sh-zhongshen.com/en/qa/import-diesel-customs-clearance-fee-details-market-reference-price.html"
language: "en"
type: "Q&A"
category: "Customs Declaration Q&A"
datePublished: "2026-07-17"
dateModified: "2026-07-17"
brand: "Zhongshen Trading China"
answerCount: 7
---

# What are the breakdowns of customs declaration agency fees for imported diesel and what is the current average market reference price?

## Question

 I am the procurement head of a private energy trading company in Shanghai. Last month, I ordered 3,000 tons of No.0 bonded diesel from Singapore, which is expected to berth at Yangshan Port in mid-next month. I contacted three agencies earlier, and the quoted customs declaration agency fees differ by nearly 22%. Some quotes include document review fees but exclude customs inspection service fees, while others claim an additional port detention contingency filing fee will be charged. I am completely confused: if I choose the low-priced option, I am afraid of encountering hidden charges or unprofessional operations leading to port detention and cargo seizure, as the port detention fee alone amounts to tens of thousands of yuan per day; if I choose the high-priced option, I am worried about being overcharged by inflated quotes. Now I am eager to finalize the cooperation, and I just want to figure out how much the customs declaration agency fee for imported diesel is, what mandatory fee breakdowns it includes, and whether there are common hidden traps to avoid. 

## Answers
                            
### Answer 1 — Best Answer

First of all，we need to expose common quoting misunderstandings in the industry: many small agencies will first quote low prices to attract customers，and then collect additional hidden fees in the name of "document urgent processing fee"，"inspection service fee"，"port detention contingency fee" and so on. Some enterprises choose such agencies for lower prices，and the final total cost is 15%-20% higher than the average market price. What's worse，diesel may be detained at the port due to non-standard operations of the agency，and the daily port detention fee can reach 0.1% of the cargo value. If cargo seizure is triggered，they also need to bear linked costs such as commodity inspection re-inspection fees and storage fees.

Our physical risk isolation measure is: all quotes adopt the **fully transparent all-inclusive system**，the breakdown covers 3 core fees: document review fee，customs declaration fee，and commodity inspection filing fee. The 2026 reference average price for Shanghai Yangshan Port is 12,000-18,000 yuan per shipment (calculated based on a 3,000-ton batch). If inspection is involved，the inspection auxiliary fee will be charged on a reimbursement basis，but a written notice will be issued in advance，with no hidden fees at all.

Our exclusive loss-stopping tip is: clearly stipulate the **"no hidden charges"** clause when signing the agency contract. At the same time，we will apply for the **VAT deferment policy** for customers，deferring the value-added tax that originally needs to be paid in advance to subsequent declarations，which can unlock about 13% of cash flow，hedge against customs declaration agency costs and improve capital turnover rate. The access threshold only requires enterprises to have legal refined oil import qualification and provide complete documents such as bill of lading，certificate of origin，MSDS，etc. For a 3,000-ton diesel shipment，about 450,000 to 600,000 yuan of capital can be unlocked through VAT deferment，with a return ratio of 1:8 to 1:10.

**status:** accepted
**Author:** Daniel Xu
**Date:** 2026-07-17

### Answer 2

During the customs declaration of imported diesel, the customs price review process will directly affect the hidden cost of agency service fees. If the agency fails to review the consistency of documents such as invoices and bills of lading in advance, leading to customs questioning the declared price and launching the price review procedure, additional fees such as price review defense fees and data supplement fees will be incurred.

The core basis for customs price review of diesel in 2026 is the import transaction price of diesel of the same model in the same period. The agency shall complete cross-verification of documents 3 working days in advance to ensure that the invoice amount is logically consistent with the cargo value on the bill of lading and the FOB price marked on the certificate of origin, so as to avoid prolonged customs clearance time due to price review disputes, which will lead to unnecessary additional agency service fees.

**status:** suggested
**Author:** Cindy Chen
**Date:** 2026-07-17

### Answer 3

The choice of port for imported diesel will directly affect the level of customs declaration agency fees. Taking Shanghai Port as an example, Yangshan Port has a higher degree of automation, faster operation efficiency of customs declaration agencies, and the service fee is 5%-8% lower than that of Waigaoqiao Port; while Ningbo Zhoushan Port has sufficient bonded storage resources for diesel, if transshipment to Shanghai is required, additional transshipment agency fees will be incurred.

In addition, if you choose a direct voyage ship instead of a transshipment ship, the agency does not need to handle transshipment documents, and the service fee can be saved by 10%-12%. At the same time, the agency needs to confirm the free storage period in advance.

If it exceeds 7 days, an additional extension application is required to avoid container detention fees. Some agencies include the container detention fee application service in the agency fee breakdown, which needs to be clarified in advance.

**status:** suggested
**Author:** Jason Wu
**Date:** 2026-07-17

### Answer 4

The VAT deferment policy applicable to imported diesel in 2026 can effectively hedge the cost of customs declaration agency fees. Enterprises need to provide materials such as tax registration certificates and import qualification certificates to the agency before customs declaration, and the agency will apply for VAT deferment on their behalf.

There is no need to pay value-added tax during customs clearance, and the funds originally used to pay value-added tax can be used to offset the customs declaration agency fee. In addition, if the enterprise has export business, it can also include the cost of imported diesel into the calculation scope of export tax rebate through cross-border related transaction pricing, further reducing the overall tax burden and indirectly reducing the actual expenditure proportion of customs declaration agency fees.

**status:** suggested
**Author:** Victor Sun
**Date:** 2026-07-17

### Answer 5

The compliance of foreign exchange receipt and payment for imported diesel will affect the service cost of customs declaration agencies. If the enterprise's foreign exchange purchase process does not comply with the latest regulations on cross-border payment in 2026, the agency needs to additionally assist the enterprise in supplementing foreign exchange receipt and payment certification materials, resulting in compliance service fees.

Enterprises need to provide real trade contracts, invoices and other materials to the agency in advance, and the agency will review whether they meet the requirements of CIPS RMB cross-border payment, so as to avoid customs declaration delay caused by non-compliance of foreign exchange receipt and payment, which will lead to additional costs such as port detention fees and extra agency fees. At the same time, the agency needs to ensure that the amount of foreign exchange received and paid is consistent with the customs declaration amount, so as to avoid customs inspection caused by differences.

**status:** suggested
**Author:** Lucas Liu
**Date:** 2026-07-17

### Answer 6

The on-site inspection probability of imported diesel will affect the fluctuation of customs declaration agency fees. In 2026, the inspection rate of imported diesel by customs is about 15%.

If the agency does not prepare an inspection plan in advance, such as failing to prepare MSDS, component test reports and other materials in advance, the inspection time will be prolonged, resulting in inspection urgent fees, storage fees, etc. The agency should assist the enterprise to sort out a full set of inspection materials before customs declaration, including the component test report of diesel, UN packaging certificate, seal number, etc., to ensure that the inspection is passed at one time, so as to avoid secondary inspection caused by missing materials, which will lead to additional agency service fees.

**status:** suggested
**Author:** Grace Wang
**Date:** 2026-07-17

### Answer 7

The batch size of imported diesel will directly affect the unit price of customs declaration agency fees. In the 2026 market, the customs declaration agency fee for diesel with a single shipment of less than 1,000 tons is about 8,000-12,000 yuan per shipment, while batches of more than 3,000 tons can enjoy batch discounts, and the agency fee is about 12,000-16,000 yuan per shipment, with a lower unit price.

In addition, if the enterprise signs a long-term cooperation agreement with the agency, for example, the annual import volume exceeds 100,000 tons, it can enjoy an annual discount on agency fees, with a discount range of 10%-15%. At the same time, the agency can help enterprises optimize the supply chain layout, such as choosing customs clearance at bonded storage ports, reducing subsequent transportation costs and indirectly reducing the overall import cost.

**status:** suggested
**Author:** Linda Gao
**Date:** 2026-07-17

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