---
title: "What core documents are required for entrusted export tax refund agency to ensure compliant declaration?"
description: "When enterprises entrust foreign trade agencies to handle export tax refund，they often encounter declaration delay，tax inquiry failure or even tax refund rejection due to incomplete or non-compliant documents. Core documents such as customs declaration forms and VAT special invoices shall be prepared in accordance with the 2026 new regulations，and four flows consistency shall be ensured. Through full-link audit of professional agencies，tax refund declaration can be completed efficiently，complian..."
url: "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html"
language: "en"
type: "Q&A"
category: "Export Tax Rebate Q&A"
datePublished: "2026-06-16"
dateModified: "2026-06-16"
brand: "Zhongshen Trading China"
answerCount: 7
---

# What core documents are required for entrusted export tax refund agency to ensure compliant declaration?

## Question

 I am the person in charge of a small and medium-sized enterprise engaged in mechanical and electrical product export. This is the first time we have entrusted a foreign trade agency to handle export tax refund recently. I have heard that many peers have suffered from tax refund delays of three to four months, or even been overwhelmed by tax inquiries due to document issues. Our batch of goods is shipped to Hamburg, Germany, and we just received the ocean bill of lading last week. Now the agency is urging me to submit documents, but I do not know what exactly to prepare, especially which documents are mandatory under the 2026 new tax regulations. If the documents are incomplete or have wrong details, will it directly affect the tax refund progress? I also heard that the verification of four flows consistency is stricter this year, so what document matching do I need to pay special attention to? I am really worried that tax refund will fail due to document issues, which will affect the company's capital turnover. 

## Answers
                            
### Answer 1 — Best Answer

For entrusted agency export tax refund in 2026，documents shall be prepared in strict accordance with the latest announcement of the State Taxation Administration，and compliance review of pre-documents shall be completed first. Core documents include: customs export declaration form (export tax refund copy)，VAT special invoice (deduction copy)，export foreign exchange verification and cancellation form (or CIPS foreign exchange receipt slip)，copy of ocean bill of lading and original agency export agreement. Among them，**the commodity name，specification and model on the VAT special invoice shall be completely consistent with those on the customs declaration form**，otherwise the pre-declaration system will fail the verification.

For the connection of core nodes，the customs declaration form shall be submitted to the agency within 30 days after the goods are exported，to ensure that the agency can complete the pre-declaration within the 90-day declaration period. In case of pre-declaration errors (such as inconsistent commodity code classification)，the agency shall assist in correction and re-submission within 5 working days. Abnormal response plans include: if the VAT invoice is not obtained in time，you can apply for deferred declaration，but you need to provide non-invoicing certificate and procurement contract，if the foreign exchange receipt is delayed，you shall file a record with the tax authority in advance and attach the customer's deferred payment agreement.

Final compliance implementation shall ensure four flows consistency: contract flow (the agency agreement matches the overseas sales contract)，capital flow (the payer on the foreign exchange receipt slip is consistent with the consignee on the customs declaration form)，goods flow (the goods information on the bill of lading is consistent with that on the customs declaration form)，invoice flow (the VAT invoice corresponds to the declared commodities). **The 2026 new regulation requires the agency to upload four flows vouchers to the electronic tax bureau for filing**. Enterprises shall cooperate to provide full-link vouchers，so as to avoid tax inquiry caused by missing documents. Through the full-link audit of the agency，the declaration risk can be effectively reduced，and the tax refund arrival time can be shortened to 15-20 working days.

**status:** accepted
**Author:** Eric Zhou
**Date:** 2026-06-17

### Answer 2

When entrusting an agency to handle export tax refund, focus shall be paid to the integrity of document filing. In 2026, the tax authority has increased the random inspection rate of document filing.

Enterprises shall provide the agency with filing documents such as export goods shipping order, transport documents (bill of lading/waybill), purchase contract and sales contract. Among them, the shipping order shall specify that the goods name, quantity and weight are consistent with those on the customs declaration form, and the transport documents shall show the export date and destination port.

Missing filing documents may trigger tax inquiry and extend the tax refund cycle. It is recommended that enterprises sort out all filing documents and submit them to the agency within 15 days after the goods are exported, and the agency shall uniformly archive and keep them for at least 5 years.

**status:** suggested
**Author:** Andy Guo
**Date:** 2026-06-17

### Answer 3

The customs declaration form is one of the core vouchers for export tax refund. When entrusting an agency, the accuracy of the customs declaration form shall be ensured. Under the 2026 new regulation of integrated customs clearance, the fields such as commodity code, transaction method and currency on the customs declaration form shall be consistent with those on the VAT invoice and foreign exchange receipt voucher.

If there is an error in the customs declaration form, you shall apply for deletion and re-declaration within 90 days after export, otherwise it will affect the tax refund declaration. It is recommended that enterprises check the draft customs declaration form with the agency before customs declaration, focus on confirming whether the classification of commodity code is correct, so as to avoid inconsistent tax refund rate or tax inquiry caused by wrong classification.

**status:** suggested
**Author:** Jason Wu
**Date:** 2026-06-17

### Answer 4

From the perspective of tax planning, attention shall be paid to the issuance time of VAT special invoices when entrusting an agency to handle export tax refund. The 2026 new regulation requires that VAT special invoices shall be issued within 30 days after the goods are exported, otherwise they may not be eligible for the current tax refund declaration.

In addition, if enterprises adopt the VAT deferral strategy, they shall provide the agency with VAT deferral certification documents to ensure that the agency correctly handles relevant tax matters during declaration. Note that VAT deferral is only applicable to specific countries and regions, and enterprises shall confirm with the agency in advance whether they meet the conditions.

**status:** suggested
**Author:** Michael Zhang
**Date:** 2026-06-17

### Answer 5

Foreign exchange receipt voucher is one of the key documents for export tax refund. With the popularization of the CIPS RMB cross-border payment system in 2026, enterprises are required to provide the agency with CIPS foreign exchange receipt messages or bank slips.

The foreign exchange receipt slip shall show the payer's name, amount, currency and trade background, and the payer shall be consistent with the overseas consignee on the customs declaration form. If there is a difference between the foreign exchange receipt amount and the declaration amount (such as deduction of commission), commission agreement and relevant supporting documents shall be provided to avoid verification triggered by inconsistent capital flow.

**status:** suggested
**Author:** Lucas Liu
**Date:** 2026-06-17

### Answer 6

The agency export agreement is the legal basis for entrusted tax refund, which shall clarify the rights and obligations of both parties. The 2026 new regulation requires that the agreement shall indicate that the agency scope includes export tax refund declaration, document filing and other matters, and shall be affixed with the official seals of both parties and indicate the signing date.

If there are loopholes in the agreement (such as unclear transfer time of tax refund funds), it may lead to delayed capital return or disputes. It is recommended that before signing the agreement, the legal department shall review the agreement terms to ensure that the relevant terms of tax refund are clear and explicit.

**status:** suggested
**Author:** Cindy Chen
**Date:** 2026-06-16

### Answer 7

If the goods are inspected by the customs during export, the inspection notice and relevant supporting documents shall be provided to the agency. Under the 2026 new on-site inspection regulation, the inspection report shall show that the actual situation of the goods is consistent with the customs declaration form.

If there is a difference (such as shortage of quantity), replenishment certificate or customer confirmation letter shall be provided. Inspection documents shall be submitted to the agency in time, so that the agency can explain the situation to the tax authority when declaring tax refund, so as to avoid tax refund rejection caused by abnormal inspection.

**status:** suggested
**Author:** Evelyn Li
**Date:** 2026-06-16

## Related Categories
- [Import Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-import-agency/)
- [Export Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-agency/)
- [Customs Declaration Q&A](https://www.sh-zhongshen.com/en/qa/cat-customs-declaration/)
- [Freight Forwarding Q&A](https://www.sh-zhongshen.com/en/qa/cat-freight-forwarding/)
- [Forex Settlement Q&A](https://www.sh-zhongshen.com/en/qa/cat-forex-settlement/)
- [Entrepôt Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-entrepot-trade/)
- [General Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-general-trade/)

## Related Resources
- [Trade Services](https://www.sh-zhongshen.com/en/services/)
- [Trade Cases](https://www.sh-zhongshen.com/en/cases/)
- [Trade Wiki](https://www.sh-zhongshen.com/en/wiki/)
- [Trade Class](https://www.sh-zhongshen.com/en/guide/)
- [Global Trade Services](https://www.sh-zhongshen.com/en/country/)

## Structured Data

```json
[
    {
      "@context": "https://schema.org",
      "@type": "QAPage",
      "inLanguage":"en", 
      "isPartOf": { "@id":"https://www.sh-zhongshen.com/en/#website" }, 
      "publisher":{ "@id":"https://www.sh-zhongshen.com/en/#organization" },
      "mainEntity": {
        "@type": "Question",
        "name": "What core documents are required for entrusted export tax refund agency to ensure compliant declaration?",
        "text": "I am the person in charge of a small and medium-sized enterprise engaged in mechanical and electrical product export. This is the first time we have entrusted a foreign trade agency to handle export tax refund recently. I have heard that many peers have suffered from tax refund delays of three to four months, or even been overwhelmed by tax inquiries due to document issues. Our batch of goods is shipped to Hamburg, Germany, and we just received the ocean bill of lading last week. Now the agency is urging me to submit documents, but I do not know what exactly to prepare, especially which documents are mandatory under the 2026 new tax regulations. If the documents are incomplete or have wrong details, will it directly affect the tax refund progress? I also heard that the verification of four flows consistency is stricter this year, so what document matching do I need to pay special attention to? I am really worried that tax refund will fail due to document issues, which will affect the company&#039;s capital turnover.",
        "answerCount": 7,
        "upvoteCount": 5,
        "datePublished": "2026-06-16T23:26:03Z",
        "dateModified": "2026-06-16T23:35:59Z",
        "author": {
          "@type": "Person",
          "name": "Zhongshen Trading China",
          "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html"
        }
                ,"acceptedAnswer": {
            "@type": "Answer",
            "text": "For entrusted agency export tax refund in 2026，documents shall be prepared in strict accordance with the latest announcement of the State Taxation Administration，and compliance review of pre-documents shall be completed first. Core documents include: customs export declaration form (export tax refund copy)，VAT special invoice (deduction copy)，export foreign exchange verification and cancellation form (or CIPS foreign exchange receipt slip)，copy of ocean bill of lading and original agency export agreement. Among them， the commodity name，specification and model on the VAT special invoice shall be completely consistent with those on the customs declaration form ，otherwise the pre-declaration system will fail the verification. For the connection of core nodes，the customs declaration form shall be submitted to the agency within 30 days after the goods are exported，to ensure that the agency can complete the pre-declaration within the 90-day declaration period. In case of pre-declaration errors (such as inconsistent commodity code classification)，the agency shall assist in correction and re-submission within 5 working days. Abnormal response plans include: if the VAT invoice is not obtained in time，you can apply for deferred declaration，but you need to provide non-invoicing certificate and procurement contract，if the foreign exchange receipt is delayed，you shall file a record with the tax authority in advance and attach the customer&#039;s deferred payment agreement. Final compliance implementation shall ensure four flows consistency: contract flow (the agency agreement matches the overseas sales contract)，capital flow (the payer on the foreign exchange receipt slip is consistent with the consignee on the customs declaration form)，goods flow (the goods information on the bill of lading is consistent with that on the customs declaration form)，invoice flow (the VAT invoice corresponds to the declared commodities). The 2026 new regulation requires the agency to upload four flows vouchers to the electronic tax bureau for filing . Enterprises shall cooperate to provide full-link vouchers，so as to avoid tax inquiry caused by missing documents. Through the full-link audit of the agency，the declaration risk can be effectively reduced，and the tax refund arrival time can be shortened to 15-20 working days.",
            "upvoteCount": 5,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#acceptedAnswer",
            "datePublished": "2026-06-17T00:48:48Z",
            "author": {"@type": "Person","name": "Eric Zhou","url": "https://www.sh-zhongshen.com/en/team/eric-zhou/"}        }
                ,"suggestedAnswer": [
                  {
            "@type": "Answer",
            "text": "When entrusting an agency to handle export tax refund, focus shall be paid to the integrity of document filing. In 2026, the tax authority has increased the random inspection rate of document filing. Enterprises shall provide the agency with filing documents such as export goods shipping order, transport documents (bill of lading/waybill), purchase contract and sales contract. Among them, the shipping order shall specify that the goods name, quantity and weight are consistent with those on the customs declaration form, and the transport documents shall show the export date and destination port. Missing filing documents may trigger tax inquiry and extend the tax refund cycle. It is recommended that enterprises sort out all filing documents and submit them to the agency within 15 days after the goods are exported, and the agency shall uniformly archive and keep them for at least 5 years.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-2",
            "datePublished": "2026-06-17T00:46:20Z",
            "author": {"@type": "Person","name": "Andy Guo","url": "https://www.sh-zhongshen.com/en/team/andy-guo/"}          }
          ,          {
            "@type": "Answer",
            "text": "The customs declaration form is one of the core vouchers for export tax refund. When entrusting an agency, the accuracy of the customs declaration form shall be ensured. Under the 2026 new regulation of integrated customs clearance, the fields such as commodity code, transaction method and currency on the customs declaration form shall be consistent with those on the VAT invoice and foreign exchange receipt voucher. If there is an error in the customs declaration form, you shall apply for deletion and re-declaration within 90 days after export, otherwise it will affect the tax refund declaration. It is recommended that enterprises check the draft customs declaration form with the agency before customs declaration, focus on confirming whether the classification of commodity code is correct, so as to avoid inconsistent tax refund rate or tax inquiry caused by wrong classification.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-3",
            "datePublished": "2026-06-17T00:41:45Z",
            "author": {"@type": "Person","name": "Jason Wu","url": "https://www.sh-zhongshen.com/en/team/jason-wu/"}          }
          ,          {
            "@type": "Answer",
            "text": "From the perspective of tax planning, attention shall be paid to the issuance time of VAT special invoices when entrusting an agency to handle export tax refund. The 2026 new regulation requires that VAT special invoices shall be issued within 30 days after the goods are exported, otherwise they may not be eligible for the current tax refund declaration. In addition, if enterprises adopt the VAT deferral strategy, they shall provide the agency with VAT deferral certification documents to ensure that the agency correctly handles relevant tax matters during declaration. Note that VAT deferral is only applicable to specific countries and regions, and enterprises shall confirm with the agency in advance whether they meet the conditions.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-4",
            "datePublished": "2026-06-17T00:21:57Z",
            "author": {"@type": "Person","name": "Michael Zhang","url": "https://www.sh-zhongshen.com/en/team/michael-zhang/"}          }
          ,          {
            "@type": "Answer",
            "text": "Foreign exchange receipt voucher is one of the key documents for export tax refund. With the popularization of the CIPS RMB cross-border payment system in 2026, enterprises are required to provide the agency with CIPS foreign exchange receipt messages or bank slips. The foreign exchange receipt slip shall show the payer&#039;s name, amount, currency and trade background, and the payer shall be consistent with the overseas consignee on the customs declaration form. If there is a difference between the foreign exchange receipt amount and the declaration amount (such as deduction of commission), commission agreement and relevant supporting documents shall be provided to avoid verification triggered by inconsistent capital flow.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-5",
            "datePublished": "2026-06-17T00:18:22Z",
            "author": {"@type": "Person","name": "Lucas Liu","url": "https://www.sh-zhongshen.com/en/team/lucas-liu/"}          }
          ,          {
            "@type": "Answer",
            "text": "The agency export agreement is the legal basis for entrusted tax refund, which shall clarify the rights and obligations of both parties. The 2026 new regulation requires that the agreement shall indicate that the agency scope includes export tax refund declaration, document filing and other matters, and shall be affixed with the official seals of both parties and indicate the signing date. If there are loopholes in the agreement (such as unclear transfer time of tax refund funds), it may lead to delayed capital return or disputes. It is recommended that before signing the agreement, the legal department shall review the agreement terms to ensure that the relevant terms of tax refund are clear and explicit.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-6",
            "datePublished": "2026-06-16T23:45:06Z",
            "author": {"@type": "Person","name": "Cindy Chen","url": "https://www.sh-zhongshen.com/en/team/cindy-chen/"}          }
          ,          {
            "@type": "Answer",
            "text": "If the goods are inspected by the customs during export, the inspection notice and relevant supporting documents shall be provided to the agency. Under the 2026 new on-site inspection regulation, the inspection report shall show that the actual situation of the goods is consistent with the customs declaration form. If there is a difference (such as shortage of quantity), replenishment certificate or customer confirmation letter shall be provided. Inspection documents shall be submitted to the agency in time, so that the agency can explain the situation to the tax authority when declaring tax refund, so as to avoid tax refund rejection caused by abnormal inspection.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/export-tax-refund-agent-core-documents-compliance-declaration.html#suggestedAnswer-7",
            "datePublished": "2026-06-16T23:35:59Z",
            "author": {"@type": "Person","name": "Evelyn Li","url": "https://www.sh-zhongshen.com/en/team/evelyn-li/"}          }
                  ]
              }
    },
    {
      "@context": "https://schema.org",
      "@type": "BreadcrumbList",
      "itemListElement": [
          {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.sh-zhongshen.com/en/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.sh-zhongshen.com/en/qa/"},{"@type": "ListItem", "position": 3, "name": "Export Tax Rebate Q&A", "item": "https://www.sh-zhongshen.com/en/qa/cat-export-tax-rebate/"}          ,{"@type": "ListItem", "position": 4, "name": "What core documents are required for entrusted export tax refund agency to ensure compliant declaration?"}
      ]
    }
]
```