In a transit trade the real risk is not the spread — it is capital sitting on the customs ledger waiting for release. Under the old single-declaration route, nothing moves until every document is in: bill of lading, invoice, certificate of origin. One late paper freezes the entire cargo title, and the bank stops disbursing alongside it.

Two-step declaration splits the process. A summary filing with nine core fields releases the goods for pickup first; the full declaration follows within 14 days. Title lands 3 to 5 days earlier, and the bank can negotiate against the released status, shrinking the in-transit exposure immediately.

Consolidated duty payment then converts per-shipment tax settlement into a ten-day or monthly cycle backed by a revolving bank guarantee, so the trader no longer fronts the duty on every parcel. Stacked together, the working capital trapped in transit drops by roughly a third — a concrete release for the cash flow of large crude and product flows.

Practical caveat: two-step filing demands higher declaration accuracy; a wrong field triggers a risk-control hold that slows things further. And consolidated payment requires arranging the guarantee line and bank credit in advance. These are clearance-efficiency tools, not tax cuts — keep them separate from bonded-tax relief.