What clearance is
Clearance is the act that releases nationalised goods to the importer once the import declaration has been checked and the taxes and obligations have been met. It is not an isolated step: it is the closing of a process that starts in the negotiation with the supplier and ends in your internal bookkeeping. Anyone who only shows up at the end harvests the problems planted at the beginning.
The road to the check
Before any check, the operation has to exist in the system: goods arrived and manifested, a registered declaration carrying product, value, freight, insurance and classification data, and payment of the taxes due. It is on that record that the authority decides what to verify. The outcome everyone wants — release without verification — depends on the importer history, the product and the coherence of the data, not on the value of the cargo.
The kinds of verification
The market talks about coloured channels, and the logic behind them is simple: documentary check only, documentary and physical check (open the box and compare it with what was declared), and verification of price or foreign-exchange data. There is also precautionary hold, when the doubt is about declared value or the origin of funds. What matters is not the name of the channel but knowing what each one requires — because fixing a documentary check is very different from fixing a physical one.
What stops it: tariff classification
A wrong NCM code is the most frequent cause of rework, because it never errs alone: it changes the import duty, it changes IPI, it changes whether a licence is needed, it changes administrative treatment and it changes the ICMS credit on the outbound sale. When verification finds a commercial description that does not match the declared code, the cargo does not leave until it is corrected — and correcting after registration is a procedure, not a spreadsheet adjustment.
What stops it: customs value
A declared value below what the market shows, an undocumented discount, tooling or a mould paid separately, royalties and freight left out of the base: all of these are found in the price verification. The point is not to pay less, it is to prove what you paid — with contract, invoice, FX receipt and a calculation trail. A cheap cargo with weak backing usually spends more days on the yard than an expensive one that is well documented.
What stops it: missing consent
A product that requires prior consent from a technical agency does not clear on goodwill: it clears with the document. Health, agriculture, army, telecoms, metrology and environment regulators have their own flows and their own deadlines, and often require the product or the importer to be registered first, which takes weeks. When that check is done after the purchase, the cargo arrives and sits in a bonded warehouse — and storage becomes the bill nobody budgeted.
What stops it: carrier and terminal
Some holds are not customs at all: a container that was never manifested, a transport document with the wrong consignee, cargo that does not match the packing list, a broken seal, unpaid charges to the shipping line or the agent, and terminal bureaucracy. In those cases clearance can be approved and the cargo still unavailable. It is the part that confuses most people who look at importing only through taxes.
After clearance
Once the cargo is released the process continues: pickup at the terminal, inland transport to destination, internal physical count, booking the entry, using the tax credits and closing the FX contract. An import that ends at clearance is an import that has not yet become a known cost or a used credit — and it is common for the mismatch to appear exactly at that closing stage.
How to reduce the odds of standing still
The order that works is the reverse of the one most companies use: first confirm the product can enter and under which requirements, then classify and simulate the landed cost with that classification, then negotiate price and Incoterm with the supplier knowing what has to appear on their invoice, and only then ship. Everything else — authorisation, FX, transport, insurance — is arranged around that. Shipping first and checking later is, in practice, buying the possibility of paying storage.
Introductory guides to international trade processes, risks and decisions. Content is not a substitute for operation-specific technical, legal, tax or customs advice.