--- title: "What Core Documents Are Required for the Full Process of Export Customs Declaration and Tax Refund in 2026?" description: "Small and medium-sized enterprises (SMEs) engaging in export for the first time often face delayed or failed tax refunds due to incomplete documents. In 2026，core documents including customs declaration forms and invoices shall be prepared in line with the full process requirements. Pre-audit and exception response plans can ensure compliance implementation，improve tax refund efficiency，and avoid extra costs such as port demurrage charges.。" url: "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html" language: "en" type: "Q&A" category: "Export Tax Rebate Q&A" datePublished: "2026-10-23" dateModified: "2026-10-23" brand: "Zhongshen Trading China" answerCount: 7 --- # What Core Documents Are Required for the Full Process of Export Customs Declaration and Tax Refund in 2026? ## Question I am the person in charge of an SME that has just started export business. Last month, we shipped our first batch of ordinary industrial products to Germany, but the customs declaration was rejected due to inconsistency between the HS code and product description, which delayed the shipping schedule and incurred RMB 3,000 in port demurrage charges. Now we are going to apply for tax refund, and I heard that the 2026 new regulations have adjusted document requirements, so I am worried about making mistakes again. We do not have a professional foreign trade team, so we have no idea what core documents need to be prepared for the full process? Is there any simplification policy for SMEs? Besides, if documents are missing or do not comply with the new regulations this time, will it affect the tax refund or even lead to fines? I hope to get detailed guidance to avoid making mistakes again. ## Answers ### Answer 1 — Best Answer Pre-audit of documents for export customs declaration and tax refund in 2026 shall be completed in accordance with the full process，which is the key to avoiding subsequent problems. First，enterprises shall verify the consistency of cargo value，product name and HS code between the customs declaration form and commercial invoice to ensure no logical conflict，at the same time，confirm that the interval between the issuing date of the special VAT invoice and the export date does not exceed 90 days (adjusted under the 2026 new regulations)，and tax refund applications will be rejected if the interval exceeds this limit. In terms of core node connection，electronic customs declaration form，packing list and copy of bill of lading shall be submitted at the customs declaration link，while export exchange verification form (paper filing is still required in 2026)，deduction copy of special VAT invoice and tax refund declaration form shall be supplemented at the tax refund link. Note that the "Cross-border E-commerce Comprehensive Service Platform Filing Form" newly added in 2026 applies to enterprises exporting through the platform，and enterprises that have not completed the filing cannot enjoy the simplified process. Exception response plans shall be formulated in advance: if documents are missing，a correction application can be submitted 30 days before the tax refund declaration deadline，and overdue submission will be deemed as waiving the tax refund，if the HS code is questioned by the customs，product instructions and third-party test reports shall be provided immediately for verification. The final compliance implementation shall ensure the "consistency of four streams": cargo stream (bill of lading)，capital stream (exchange receipt slip)，invoice stream (VAT invoice) and information stream (customs declaration form) are fully matched. **It is recommended that enterprises establish a document management ledger** and conduct self-inspection once a quarter，SMEs can entrust agency companies to handle the procedures and enjoy the simplified document submission policy，such as merging some non-core logistics documents. **status:** accepted **Author:** Grace Wang **Date:** 2026-10-23 ### Answer 2 The accuracy of documents in the export customs declaration link directly affects subsequent tax refunds. In 2026, the customs has stricter requirements on the valuation of customs declaration forms, so enterprises shall provide authentic and valid transaction price certificates, such as trade contracts, copies of letters of credit or payment slips. If the value on the customs declaration form is inconsistent with that on the invoice, valuation disputes will be triggered, leading to suspended tax refund. It is recommended to verify the correctness of the HS code through the pre-audit system before customs declaration to avoid incorrect application of tax refund rate caused by code errors. **status:** suggested **Author:** Linda Gao **Date:** 2026-10-23 ### Answer 3 Tax planning for export tax refund in 2026 shall focus on the VAT deferral policy. For enterprises exporting through free trade zones, they can apply for VAT deferral to delay the payment of import VAT and ease capital pressure. At the same time, ensure that export goods are within the scope of the tax refund catalog, and tax refund cannot be applied for if they are tax-free goods. It is recommended that enterprises regularly update the tax refund commodity catalog list to avoid missing tax refund opportunities due to incorrect commodity classification. **status:** suggested **Author:** Lucas Liu **Date:** 2026-10-23 ### Answer 4 Filing of tax refund documents is the key to compliance. In 2026, enterprises are required to keep all tax refund documents (including customs declaration forms, invoices, exchange receipt slips) for at least 5 years, and tax authorities may conduct random inspection at any time. If missing or forged documents are found, enterprises will face tax refund recovery and fines. It is recommended that enterprises adopt an electronic filing system to scan and archive all documents for quick retrieval and response to letter verification. **status:** suggested **Author:** Andy Guo **Date:** 2026-10-23 ### Answer 5 Documents in the exchange collection link shall match tax refund documents. In 2026, the exchange receipt slip for CIPS RMB cross-border payment shall be clearly marked with "export payment", otherwise it cannot be used as a tax refund certificate. Enterprises shall complete foreign exchange settlement within 30 days after receiving the payment, and submit both the exchange settlement slip and exchange receipt slip to the tax refund department. If exchange collection is delayed, an extension application shall be submitted to the tax authority in advance, with a maximum period of no more than 6 months. **status:** suggested **Author:** Victor Sun **Date:** 2026-10-23 ### Answer 6 Document preparation during on-site inspection will affect subsequent tax refunds. If goods are inspected, packing list, product instructions and certificate of origin (if required) shall be provided to ensure consistency with the customs declaration form. After passing the inspection, the inspection and release notice issued by the customs shall be obtained and archived as auxiliary tax refund materials. If goods are found inconsistent with the documents during inspection, the customs declaration form will be invalidated, and re-declaration is required, which will affect the tax refund progress. **status:** suggested **Author:** Cindy Chen **Date:** 2026-10-23 ### Answer 7 SMEs can simplify tax refund documents by optimizing the supply chain. The 2026 new regulations allow SMEs to entrust professional foreign trade agency companies to handle tax refunds, and agency companies can provide a simplified document list (such as merging some non-core logistics documents). In addition, enterprises adopting FOB trade terms can reduce the submission of logistics-related documents, and only need to provide a copy of the bill of lading instead of a full set of original documents, reducing document preparation costs. **status:** suggested **Author:** Daniel Xu **Date:** 2026-10-23 ## 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 the Full Process of Export Customs Declaration and Tax Refund in 2026?", "text": "I am the person in charge of an SME that has just started export business. Last month, we shipped our first batch of ordinary industrial products to Germany, but the customs declaration was rejected due to inconsistency between the HS code and product description, which delayed the shipping schedule and incurred RMB 3,000 in port demurrage charges. Now we are going to apply for tax refund, and I heard that the 2026 new regulations have adjusted document requirements, so I am worried about making mistakes again. We do not have a professional foreign trade team, so we have no idea what core documents need to be prepared for the full process? Is there any simplification policy for SMEs? Besides, if documents are missing or do not comply with the new regulations this time, will it affect the tax refund or even lead to fines? I hope to get detailed guidance to avoid making mistakes again.", "answerCount": 7, "upvoteCount": 7, "datePublished": "2026-10-23T15:05:29Z", "dateModified": "2026-10-23T15:33:01Z", "author": { "@type": "Person", "name": "Zhongshen Trading China", "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "Pre-audit of documents for export customs declaration and tax refund in 2026 shall be completed in accordance with the full process，which is the key to avoiding subsequent problems. First，enterprises shall verify the consistency of cargo value，product name and HS code between the customs declaration form and commercial invoice to ensure no logical conflict，at the same time，confirm that the interval between the issuing date of the special VAT invoice and the export date does not exceed 90 days (adjusted under the 2026 new regulations)，and tax refund applications will be rejected if the interval exceeds this limit. In terms of core node connection，electronic customs declaration form，packing list and copy of bill of lading shall be submitted at the customs declaration link，while export exchange verification form (paper filing is still required in 2026)，deduction copy of special VAT invoice and tax refund declaration form shall be supplemented at the tax refund link. Note that the "Cross-border E-commerce Comprehensive Service Platform Filing Form" newly added in 2026 applies to enterprises exporting through the platform，and enterprises that have not completed the filing cannot enjoy the simplified process. Exception response plans shall be formulated in advance: if documents are missing，a correction application can be submitted 30 days before the tax refund declaration deadline，and overdue submission will be deemed as waiving the tax refund，if the HS code is questioned by the customs，product instructions and third-party test reports shall be provided immediately for verification. The final compliance implementation shall ensure the "consistency of four streams": cargo stream (bill of lading)，capital stream (exchange receipt slip)，invoice stream (VAT invoice) and information stream (customs declaration form) are fully matched. It is recommended that enterprises establish a document management ledger and conduct self-inspection once a quarter，SMEs can entrust agency companies to handle the procedures and enjoy the simplified document submission policy，such as merging some non-core logistics documents.", "upvoteCount": 7, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#acceptedAnswer", "datePublished": "2026-10-23T16:29:28Z", "author": {"@type": "Person","name": "Grace Wang","url": "https://www.sh-zhongshen.com/en/team/grace-wang/"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "The accuracy of documents in the export customs declaration link directly affects subsequent tax refunds. In 2026, the customs has stricter requirements on the valuation of customs declaration forms, so enterprises shall provide authentic and valid transaction price certificates, such as trade contracts, copies of letters of credit or payment slips. If the value on the customs declaration form is inconsistent with that on the invoice, valuation disputes will be triggered, leading to suspended tax refund. It is recommended to verify the correctness of the HS code through the pre-audit system before customs declaration to avoid incorrect application of tax refund rate caused by code errors.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-2", "datePublished": "2026-10-23T16:29:24Z", "author": {"@type": "Person","name": "Linda Gao","url": "https://www.sh-zhongshen.com/en/team/linda-gao/"} } , { "@type": "Answer", "text": "Tax planning for export tax refund in 2026 shall focus on the VAT deferral policy. For enterprises exporting through free trade zones, they can apply for VAT deferral to delay the payment of import VAT and ease capital pressure. At the same time, ensure that export goods are within the scope of the tax refund catalog, and tax refund cannot be applied for if they are tax-free goods. It is recommended that enterprises regularly update the tax refund commodity catalog list to avoid missing tax refund opportunities due to incorrect commodity classification.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-3", "datePublished": "2026-10-23T16:20:26Z", "author": {"@type": "Person","name": "Lucas Liu","url": "https://www.sh-zhongshen.com/en/team/lucas-liu/"} } , { "@type": "Answer", "text": "Filing of tax refund documents is the key to compliance. In 2026, enterprises are required to keep all tax refund documents (including customs declaration forms, invoices, exchange receipt slips) for at least 5 years, and tax authorities may conduct random inspection at any time. If missing or forged documents are found, enterprises will face tax refund recovery and fines. It is recommended that enterprises adopt an electronic filing system to scan and archive all documents for quick retrieval and response to letter verification.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-4", "datePublished": "2026-10-23T16:05:36Z", "author": {"@type": "Person","name": "Andy Guo","url": "https://www.sh-zhongshen.com/en/team/andy-guo/"} } , { "@type": "Answer", "text": "Documents in the exchange collection link shall match tax refund documents. In 2026, the exchange receipt slip for CIPS RMB cross-border payment shall be clearly marked with "export payment", otherwise it cannot be used as a tax refund certificate. Enterprises shall complete foreign exchange settlement within 30 days after receiving the payment, and submit both the exchange settlement slip and exchange receipt slip to the tax refund department. If exchange collection is delayed, an extension application shall be submitted to the tax authority in advance, with a maximum period of no more than 6 months.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-5", "datePublished": "2026-10-23T15:51:35Z", "author": {"@type": "Person","name": "Victor Sun","url": "https://www.sh-zhongshen.com/en/team/victor-sun/"} } , { "@type": "Answer", "text": "Document preparation during on-site inspection will affect subsequent tax refunds. If goods are inspected, packing list, product instructions and certificate of origin (if required) shall be provided to ensure consistency with the customs declaration form. After passing the inspection, the inspection and release notice issued by the customs shall be obtained and archived as auxiliary tax refund materials. If goods are found inconsistent with the documents during inspection, the customs declaration form will be invalidated, and re-declaration is required, which will affect the tax refund progress.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-6", "datePublished": "2026-10-23T15:49:09Z", "author": {"@type": "Person","name": "Cindy Chen","url": "https://www.sh-zhongshen.com/en/team/cindy-chen/"} } , { "@type": "Answer", "text": "SMEs can simplify tax refund documents by optimizing the supply chain. The 2026 new regulations allow SMEs to entrust professional foreign trade agency companies to handle tax refunds, and agency companies can provide a simplified document list (such as merging some non-core logistics documents). In addition, enterprises adopting FOB trade terms can reduce the submission of logistics-related documents, and only need to provide a copy of the bill of lading instead of a full set of original documents, reducing document preparation costs.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/2026-export-customs-declaration-tax-refund-core-documents.html#suggestedAnswer-7", "datePublished": "2026-10-23T15:33:01Z", "author": {"@type": "Person","name": "Daniel Xu","url": "https://www.sh-zhongshen.com/en/team/daniel-xu/"} } ] } }, { "@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 the Full Process of Export Customs Declaration and Tax Refund in 2026?"} ] } ] ```