How to correctly convert CIF price to FOB price when declaring export tax refund?

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  • Jul 28, 2026 at 15:01
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I am the head of a small foreign trade company dealing in electromechanical products in Shanghai. I recently received an order on CIF Hamburg terms, with a cargo value of 50,000 USD, freight of 3,000 USD and insurance premium of 500 USD.

We have been using FOB terms before, and this is our first time handling CIF tax refund declaration. I do not know how to accurately convert the price to FOB, and what documents are required for freight and insurance premiums.

I heard that incorrect filling will affect the tax refund progress or even lead to rejection, so I am quite worried. I would like to know the specific procedures, key points for attention and remediation methods after errors occur.

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Expert Q&A

Linda Gao
Linda GaoYears of service：7Customer Rating：5.0

Documentation SupervisorStart a Chat

First of all，accurate pre-document review must be completed. When declaring tax refund under CIF terms，in addition to conventional customs declaration forms，special VAT invoices and export invoices，you also need to prepare valid certificates for freight and insurance premiums: sea/air waybill (with freight amount indicated)，insurance premium invoice or insurance premium confirmation letter issued by the insurance company，and the amount on the certificates must be consistent with that on the customs declaration form. If you use third-party logistics or insurance institutions，you need to ensure that the title of the certificate matches the declaring entity to avoid pre-declaration failure caused by inconsistent documents.

The key to core node connection lies in FOB price conversion and system filling. According to 2026 tax regulations，the CIF price shall be deducted by actual freight，insurance premium and commission (if any) to get the FOB price as the basis for tax refund. In the export tax refund module of the electronic tax bureau，you need to select "CIF" as the transaction method in the "Export Details Declaration Form"，fill in the corresponding freight and insurance premium amounts (the currency unit is consistent with that on the customs declaration form)，and the system will automatically convert the FOB price. Special attention shall be paid: if the freight and insurance premiums are estimated amounts，you need to adjust the declaration within 30 days after the actual occurrence，otherwise it may be deemed as false declaration.

Exception response plans shall be prepared in advance. If the pre-declaration shows a prompt of "freight and insurance premiums inconsistent with customs declaration form"，you shall immediately check the difference between the certificate and the customs declaration form: if the certificate is wrong，contact the institution to reissue it，if there is an entry error in the customs declaration form，apply for modification within 90 days. If an error is found after formal declaration but before tax refund is issued，you can submit a corrected declaration with supporting materials within the tax refund period，and the tax authority will give priority to handling it.

The final compliance implementation shall ensure the "consistency of four flows". In addition to consistent documents，the capital flow shall also match: the payment voucher of freight and insurance premiums shall correspond to the declared amount，and the payee shall be a formal enterprise. At the same time，document filing shall be completed within 15 days after the tax refund declaration，including freight and insurance premium certificates，copies of bills of lading，etc。for tax inspection.

Reference: What Taxes Need to be Paid for Agency Export? 2025 Latest Tax Guide
Victor Sun
Victor SunYears of service：5Customer Rating：5.0

Trade Risk Control ManagerStart a Chat

From the perspective of customs valuation, CIF tax refund declaration shall ensure that the freight and insurance premium amounts on the customs declaration form are true and valid. If the amount on the customs declaration form is an estimate, you shall timely apply to the customs for modifying the supplementary explanation of transaction method after the goods depart, otherwise the tax authority may reject the tax refund due to incomplete information.

For LCL transportation, you need to provide a house waybill freight certificate to avoid valuation disputes caused by the inability to split the total amount of the master bill of lading.

Jason Wu
Jason WuYears of service：10Customer Rating：5.0

International Logistics & Supply Chain ManagerStart a Chat

Logistics document management under CIF terms directly affects tax refund. It is recommended to select logistics enterprises connected to the tax network, whose electronic freight vouchers can be directly imported into the system to reduce errors.

If additional freight is incurred due to container rolling, you shall timely obtain the logistics adjustment letter and modify it in the system to ensure that the amount is consistent with the actual one.

Daniel Xu
Daniel XuYears of service：10Customer Rating：5.0

Director of Import & Export OperationsStart a Chat

In terms of tax planning, freight and insurance premiums under CIF terms can be deducted before tax as sales expenses, but need to be linked with tax refund.

If the freight is borne by the customer, it shall be clearly stipulated in the contract and the customer's payment voucher shall be provided to avoid falsely increasing costs. For cross-border freight in 2026, zero VAT rate can be applied for, which requires separate declaration and attached certificates.

Andy Guo
Andy GuoYears of service：3Customer Rating：5.0

Supply Chain Management ExpertStart a Chat

Attention shall be paid to payment and receipt compliance: the received foreign exchange shall include payment for goods, freight and insurance premiums. When settling foreign exchange, mark "export payment + advanced expenses" and keep the bank slip.

When paying in RMB via CIPS, ensure that the payment record is consistent with the amount on the customs declaration form to avoid failure of capital flow verification caused by remittance route problems.

Evelyn Li
Evelyn LiYears of service：3Customer Rating：5.0

Cross-border Compliance SupervisorStart a Chat

The contract shall clearly specify the bearing method, amount standard and certificate liability for freight and insurance premiums, so as to avoid document disputes caused by ambiguity. If the logistics/insurance institution fails to provide certificates in time, it can be required to bear the liability for breach of contract according to the contract, and communication records shall be kept as supplementary certificates for tax refund.

Lucas Liu
Lucas LiuYears of service：8Customer Rating：5.0

Senior Operations ConsultantStart a Chat

If it is found during inspection that the freight and insurance premiums are inconsistent with the customs declaration form, you shall immediately contact the institution to provide temporary certificates and issue an explanation to the customs, and apply for indicating the reason for the difference in the inspection record.

After the formal certificate is issued, submit the tax correction materials in time to ensure that the tax refund is not affected. Copies of certificates shall be carried for reference during inspection.

Michael Zhang
Michael ZhangYears of service：6Customer Rating：5.0

Customs Declaration & Compliance ExpertStart a Chat

Tax refund audit focuses on verifying the "consistency of four flows": consistency between customs declaration form and certificates, capital flow and certificates, contract and operation, invoice and FOB price. If any difference is found in the audit, a rectification report with supporting certificates shall be submitted within 15 days, otherwise the tax refund qualification may be suspended.

Kevin Lin
Kevin LinYears of service：4Customer Rating：5.0

Trade Solutions ManagerStart a Chat

For long-term suggestions, a dynamic conversion model between CIF and FOB shall be established to adjust the transaction method according to exchange rate and freight fluctuations.

Sign long-term agreements with fixed logistics/insurance institutions to obtain stable certificate support and improve tax refund efficiency. When freight rises, you can switch to FOB terms to transfer risks and simplify declaration.

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Small and micro-sized enterprises in Nanning mainly engaged in ASEAN fruit and vegetable export lack experience in export tax refund，and worry about falling into traps when entrusting customs brokers that may lead to tax refund failure and leave adverse compliance records. They urgently need to clarify whether customs brokers can handle tax refund on their behalf and get to know reliable operation approaches. By verifying tax refund agency qualification，signing compensation clauses，pre-auditing core documents and other measures，compliance risks can be effectively avoided，ensuring that tax refund funds arrive on time and offset the gap of logistics costs.。

After foreign trade enterprises complete export tax refund declaration，they often fall into anxiety due to unclear formal inquiry channels and insufficient prepared verification materials，and even face tax refund delay and capital occupation due to failure to obtain abnormal feedback in time. Enterprises can inquire through official channels such as the national unified e-tax bureau and China International Trade Single Window，prepare materials such as declaration number in advance，and contact the competent tax authority when encountering system failure，to quickly locate feedback information，ensure smooth and compliant tax refund procedures，and avoid capital losses and compliance risks caused by information delay.。

In export business settled in cross-border RMB，enterprises often encounter declaration errors，delayed tax refunds or even compliance risks due to unfamiliarity with FOB value filling rules. It is necessary to strictly match the RMB FOB value indicated on the customs declaration form，verify the consistency between settlement vouchers and contracts，and retain supporting materials for discrepancies，so as to meet tax compliance requirements，complete tax refund declaration smoothly，and avoid losses such as delayed refund and fines.。

Foreign trade enterprises often have doubts about the scope of tax refund for processing fees when declaring export tax refunds，and are prone to risks such as tax bureau verification letters and suspension of tax refund qualification due to incorrect declarations. It is necessary to classify and identify the compliance of processing fees: processing fees corresponding to domestic entrusted processing with special VAT invoices with remarks can be declared，overseas processing fees must comply with feed processing rules and have complete payment records. At the same time，ensure full matching of the four flows (fund flow，invoice flow，contract flow，goods flow)，and active pre-declaration verification can avoid risks in advance.。

The document supervisor of Guangming Import & Export，who has just completed the export of 12 containers of New Zealand full-cream milk powder，found a 50kg difference in net weight between the customs declaration form and the VAT invoice. Coupled with the previous negative experience of tax refund delay and tax letter investigation caused by a small agency，he is worried that he cannot obtain the tax refund compliantly within the 30 days required by the boss，and even affect the company's export tax refund credit rating. Full-chain compliant tax refund can be achieved through prior document pre-audit，core node connection，and abnormal contingency plan formulation.。