--- title: "A valid VAT number: what VIES does not tell you about an EU customer" canonical: https://www.billabex.com/en/blog/vat-number-vies-limits/ lang: en alternate: https://www.billabex.com/fr/blog/numero-tva-vies-limites.md updated: 2026-10-19 index: https://www.billabex.com/llms.txt --- # A valid VAT number: what VIES does not tell you about an EU customer A new European customer's VAT number returns a valid result. Sales then requests an additional delivery on credit: “The check is green, so we can proceed.” Yet the search says nothing about how much that customer can pay when the invoice falls due. It answers a tax-registration question, not a request to approve credit exposure. This confusion often starts with several checks combined into one “customer verified” status. Separate the tax number, the identity of the contracting party, available information about its situation and the proposed financial exposure. A positive result from one tool should not close questions that tool does not examine. For a French business selling elsewhere in the European Union, those distinctions support both accurate records and a defensible internal decision. They also make it easier to explain what remains to be clarified without accusing the customer of misconduct. ## Define what the identifier confirms The European Commission describes a VAT number as identifying a taxable person or legal entity registered for VAT. Its purpose concerns tax identification. The Commission also explains that a business may require national VAT numbers in several countries. [European Commission, VAT identification numbers](https://taxation-customs.ec.europa.eu/taxation/vat/vat-directive/vat-identification-numbers_en). VIES queries national data for verification in the context of European cross-border trade. Keep your conclusion within that scope. A valid status provides no credit limit, collection history or confirmation of who may sign your order. Those questions need other evidence. Avoid naming an internal field “creditworthiness approved” when VIES is its only source. “VAT verification” describes the check performed. Another field can identify who assessed the contracting party and a third can record the internal exposure decision. This separation helps whoever takes over the case after the sale. ## Distinguish an invalid result from an unavailable service Your Europe explains that an invalid response can reflect a nonexistent number, missing activation for intra-EU transactions or registration still in progress. The service can also be temporarily unavailable. It recommends retaining evidence of validation and contacting the relevant tax authority where clarification is needed. [Your Europe, checked 18 June 2026](https://europa.eu/youreurope/business/finance-and-tax/vat/check-vat-number-vies/index_en.htm). An internal technical-error status should therefore remain a technical error. Converting it to “invalid customer” can lead sales to allege an identity or fraud problem incorrectly. Copying an old positive result to conceal an outage would instead hide current uncertainty. Consider a simulated exercise with twelve checks: ten valid responses, one invalid response and one unavailable result. Valid responses account for 10 out of 12 attempts, or 83.3%. Among the eleven usable responses, they represent 10 out of 11, or 90.9%. Neither percentage measures creditworthy customers. They describe consultation outcomes using different denominators. Record which question remains open and who will resolve it. That gives the team an actionable next step without treating a temporary data problem as a final commercial conclusion. ## Match the identifier to the correct business The record should connect the order, contract and tax information to the same party, or explain a particular arrangement. A trading brand, delivery address and group payment company are not necessarily three names for one legal entity. Copying a valid number from another entity's document does not resolve the discrepancy. The European e-Justice BRIS service searches covered companies through registration identifiers and provides information available from national registers, potentially including annual accounts and legal representatives. Its scope concerns specified company forms and branches, rather than every kind of independent business. [European e-Justice, BRIS service description, 22 June 2026](https://e-justice.europa.eu/topics/registers-business-insolvency-land/business-registers-search-company-eu/general-information-find-company_en). Use the information to ask a focused question. If the order names company A but the supplied documents concern company B, establish who is contracting and why the other company is involved. Do not merge their accounts merely to remove the mismatch. The method for cases where [the payer is not the customer](https://www.billabex.com/en/blog/payer-versus-customer-entity-mapping/) helps document the relationship. A representative named in a register supplies one item to examine. It does not describe every internal delegation. Link the contractual decision to relevant evidence rather than a resemblance between business names. ## Calculate the exposure a tax check does not measure Imagine a French company considering a new delivery to a customer in another EU country. Every amount below is fictional, expressed in euros and measured on a consistent receivable basis. The €14,000 of open invoices is already net of earlier receipts. Add €10,000 of work performed but not yet invoiced and a new €30,000 delivery. A €6,000 deposit for that new delivery has actually arrived and has not already been deducted from another line. Projected exposure is therefore €14,000 plus €10,000 plus €30,000 minus €6,000, or €48,000. Against an assumed internal limit of €50,000, arithmetic headroom is €2,000. The limit is a management assumption, not a statutory requirement or a recommendation for your business. If the deposit has merely been promised, exposure becomes €54,000, exceeding that assumption by €4,000. The VIES result can be identical in both cases. It cannot turn the promised €6,000 into cash or establish that €48,000 of exposure is acceptable. The decision should examine ability and behaviour regarding payment, unresolved blockages and concentration. Reviewing the [age of credit information](https://www.billabex.com/en/blog/outdated-credit-information-customer-review/) helps distinguish a recent search from financial data describing an older period. A deposit reference also needs to belong to this customer and transaction. Subtracting an unrelated advance merely because it appears nearby in the bank feed would understate exposure. ## Seek relevant information without overreading an absence The European insolvency-register interconnection answers a separate question: finding procedure information in registers actually connected to the service. The portal explains that national search and retention rules differ and coverage depends on implemented interfaces. A search needs to respect those limits. [European insolvency-register interface](https://webgate.ec.europa.eu/iri/index.html?lang=en). No result is therefore not a favourable credit score. Nor does it establish that tax or commercial information is wrong. If the identifier was incorrect or the relevant register was not searched, say so rather than interpreting silence as assurance. For an actual case, record the source, identifier, date and useful outcome, followed by the decision made. Restrict detailed information to people who need it. Verify an observation about a proceeding before repeating it in a reminder or using it to decide how existing contractual commitments should be handled. Keep the underlying evidence accessible to the reviewer. A label such as “checked online” gives little help when another colleague must understand what was searched or whether the result concerns the right entity. ## Preserve three separate conclusions Tax verification, contracting-party identity and credit-exposure approval should be able to change independently. A changed address does not necessarily mean a new entity. A payment incident does not automatically invalidate its VAT number. Update the relevant issue with the origin of the new information. The distinction between [business identities and invoice references](https://www.billabex.com/en/blog/duplicate-invoice-numbers-legal-entities/) complements this work. To examine how your team retrieves a European customer's context, explore [Billabex's customer view 360](https://www.billabex.com/en/product/customer-view-360/). Use your records and decisions in a demonstration without assuming a native VIES check or automated credit rating. ## Sources - European Commission, definition and use of VAT identification numbers. - Your Europe, VIES verification guidance, 18 June 2026. - European e-Justice, BRIS guidance, 22 June 2026, and insolvency-register interface. Sources consulted on 7 September 2026.