Brazil will reject parcel declarations with invalid NCM or cClassTrib data from 1 October

Brazil is turning two parcel-data fields into hard entry checks. From 1 October 2026, a Siscomex Remessa transmission for a Declaração de Importação de Remessa (DIR) must carry an NCM field with at least the first six digits of a valid code and a cClassTrib field with a valid six-digit code. If either test fails, the system will reject the transmission and no DIR will be registered. The official notice gives no grace period.

The rule concerns international consignments cleared through Siscomex Remessa, including postal and express parcels. The DIR is filed only by Correios or an authorised courier, not directly by the foreign seller or recipient. That does not remove the commercial data problem: the operator can submit only the classification information it receives through the marketplace, seller, shipping file or Brazilian consignee. Imports cleared under another declaration follow their own process and should not be folded into this notice by assumption.

NCM and cClassTrib answer different questions. NCM classifies the goods in the Mercosur tariff; the new check accepts at least six valid digits in the DIR transmission, although a business may need more detailed classification elsewhere. cClassTrib is the six-digit tax-classification code introduced for Brazil's CBS and IBS consumption-tax framework. A familiar product description is not a substitute for either field, and one generic code should not be copied across a catalogue without checking the product and tax treatment.

Before the first October shipment, reconcile the next real order across four records: the SKU master, checkout or marketplace data, the carrier file and the Brazilian recipient's classification. Assign an accountable Brazilian tax or customs specialist to confirm cClassTrib, validate NCM against the official classification tools, and ask the postal or courier operator how it will surface a rejected transmission. Keep the classification decision and source version with the SKU so that a corrected file does not drift back to an old value.

This is a data-readiness deadline, not a new ban on parcel imports. The immediate risk is that a DIR is never registered because its transmission fails validation, leaving the parcel unable to follow the intended clearance route until the data is corrected. EU sellers using postal or express delivery to Brazil should test one live product flow with their logistics partner now. An Opportunity Scan can map the responsible parties and product-data gaps before they become a queue of rejected declarations.