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How to preserve customs evidence in the ERP

Outsourcing declarations to a broker does not give finance a complete import or export record. Build a retained chain from the declared goods to the shipment, commercial document, inventory event and accounting. Keep the legal and commercial roles explicit so a delivery term or supplier address does not silently decide who imports.

Diagram: Keep customs value, duty and import VAT bases separate. Assumed rates and valuation inputs, for arithmetic only. The customs and tax owners approve actual bases and treatment.

Use the customs-to-ERP worksheet with the broker and finance owners. The procedure below is a control design for EU examples. The customs specialist approves classification, origin, valuation and procedure for actual goods.

Establish the route and responsible parties

Record the seller, buyer, stock owner, importer/exporter, declarant and representative for the selected route. Retain the representation agreement and the exact registrations used. Identify who can instruct amendments and who receives customs decisions and release evidence.

The Commission describes EORI as an identification number for customs activities. Preserve its owner and role rather than treating it as interchangeable with a VAT number or incorporation number. Commission, EORI.

Give the broker a controlled data specification. It should identify mandatory business inputs, responsibility for uncertain facts, the declaration references returned and the event that allows the goods to proceed. A shared mailbox without an acknowledgment or owner is a weak handoff.

Control classification, origin and valuation independently

Collect technical product facts before selecting a tariff code. Retain the approved classification, tariff version, effective dates, supporting description and any ruling. A supplier's suggested code is an input for review, not an approved company decision by itself.

Classification also affects non-tariff measures, licensing and restrictions. The Commission explains the Combined Nomenclature and TARIC relationship and the broader uses of classification. Do not limit the product record to a duty percentage. Commission, tariff classification.

Keep origin distinct from country of dispatch and supplier residence. Determine whether a claim concerns preferential or non-preferential origin and retain the evidence required for that claim. Commission, origin rules.

For value, retain the transaction price, currency and approved adjustments. The customs transaction-value method has conditions and specified additions; freight, assists and royalties may require analysis. If that method is unavailable, the specialist must approve the appropriate alternative. Commission, customs valuation quick information.

Store the decision and evidence with the declaration line. Do not calculate customs value by copying inventory cost or a transfer price without checking the relevant valuation rules.

Agree the broker's return data before the first shipment

Ask for declaration and line references, goods descriptions, code, origin, procedure, quantities, units, customs value, duty, import VAT, relevant currency/rate and release or amendment status. Include shipment, purchase-order and invoice references needed to join the records.

Retain the actual declaration evidence, not only the broker's service invoice. Separate a broker fee from a duty disbursement and an import-VAT amount. Reconcile the corresponding accounting entries to their own supporting documents.

The Commission identifies tariff, value and origin as the main factors determining customs duty. An unexplained amount charged by a broker does not establish that all three inputs were correct. Commission, calculating customs duties.

Work an illustrative import calculation

Assume the customs specialist approves a transaction value of EUR10,000, an additional EUR500 freight amount included in customs value and an illustrative duty rate of 4%. There are no other adjustments, preferences or special procedures. These are deliberately assumed values, not a tariff determination for a real product.

The customs value is EUR10,500. Illustrative duty is EUR420. Assume the import-VAT base includes a further EUR80 qualifying destination cost not already included, and the approved illustrative VAT rate is 20%. That base is EUR10,500 plus EUR420 plus EUR80, or EUR11,000. The illustrative import VAT is EUR2,200.

The different bases matter. The Commission's import-VAT explanation includes customs value and the applicable duties and additional costs under the relevant rules. It does not say every amount on a broker invoice is automatically part of the same base. Commission, import-VAT taxable amount.

For this example, the declaration has two goods lines whose approved customs values are EUR6,300 and EUR4,200. Their sum must equal EUR10,500. Match each line to received goods and the relevant purchase references. If only one line can be matched, the overall declaration total is not sufficient evidence of a complete receipt reconciliation.

Finance records inventory, duty, freight and VAT according to the approved accounting and deduction treatment. This calculation is not permission to capitalize recoverable VAT or claim import VAT without the required importer evidence. The tax owner approves those decisions separately.

Work the export evidence path separately

For an export, link the sales order, invoice, picked goods, transport reference, declaration and required exit evidence. Record which party obtains the exit result and how finance retrieves it. Commercial delivery and a customs exit result are different events.

If a customer receives only part of a shipment, preserve the actual quantity and ask customs and tax to determine the effect on the declaration and invoice. Do not edit the original dispatch quantity simply to match a later customer acknowledgment.

Create an exception for missing evidence. Assign its owner, affected amount and next action. The tax reviewer determines any VAT treatment and required correction; the reconciliation must not silently equate a shipping booking with proof of export.

Control amendments and close the reconciliation

Suppose a broker incorrectly declares the first import line as EUR6,800 instead of EUR6,300. The resulting total is EUR11,000 rather than EUR10,500. Stop the finance reconciliation from treating that unexplained difference as another inventory cost. Obtain the source documents and have the authorized party correct the declaration through the applicable procedure.

Preserve both versions and reconcile the amended duty/VAT and payment effects. A correcting journal alone does not amend a customs declaration; an amended declaration alone does not prove the ERP was updated.

☐ Party roles, representation and registrations are documented.
☐ Classification, origin and valuation each have approved evidence.
☐ Declaration lines match shipment and receipt/export populations.
☐ Broker fees, duty and import VAT are distinguishable.
☐ Release, exit and amendment evidence are retrievable.
☐ Missing references and amount differences have named owners.
☐ Finance and customs agree the final population and accounting bridge.

Reassess the route when a product, supplier, origin claim, trade agreement or operating model changes. Continue with foreign stock and CBAM evidence where the goods fall within those processes.

Sources checked 17 October 2026 using official Commission material. The example uses assumed rates and valuation decisions. No declaration was submitted, and no live tariff classification or input-tax claim is certified by this guide.

Worksheet: Customs declaration line reconciliation

Copy this worksheet for each case. It records decisions and evidence; it does not determine the tax or legal treatment.

Show the worksheet

Copy this worksheet for the named entity, route and period. Blank fields are intentional inputs. Retain approved decisions and source evidence rather than inferring legal treatment from these headings.

Importer/exporter, declarant, representative and agreement:
EORI owner, route and applicable customs procedure:
Per-line tariff classification, version and approving evidence:
Origin type, claim and supporting evidence:
Value, currency, additions/deductions and valuation approval:
Declaration/line, shipment, invoice, goods receipt and quantity joins:
Duty, import VAT, fees and corresponding accounting references:
Release or exit evidence and outstanding requests:
Original/amended version, decision and financial adjustment:
Customs owner, controller, unresolved cases and close approval:

Close the record

Prepared by and date:
Reviewed by and date:
Open items, owners and due dates:
Evidence location and version:
Change/review trigger:

Keep prior versions and document corrections. A balanced reconciliation does not replace an approved scope decision or missing source evidence.

Country pages: key facts with sources
E-invoicing matrix: country × ERP support
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Vendor documentation is cited only as an example of the level of evidence to ask for; it is not a recommendation or a ranking. This guide is general information, not tax or legal advice. Checked 2026-10-17.

Related: Glossary – abbreviations and terms used in these guides (SAF-T, Peppol, CTC, EN 16931, IFRS and more).

Page last updated: 2026-10-17 · Markdown version