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House B/L vs Master B/L: the difference, and what to check between them

Updated on · ClearBerth

In short

The Master B/L is issued by the shipping line (or an upstream transport operator) to the forwarder or consolidator; the House B/L is issued by the forwarder to the actual exporter. In consolidation, several House B/Ls are covered by one Master B/L. Container, seal, ports and quantities must match between them; the parties and the B/L number do not.

Who issues what

The Master B/L (MBL) is the shipping line's bill of lading. It covers the port-to-port carriage of the container and names, as shipper and consignee, the forwarders or agents organising the transport — rarely the exporter and importer themselves.

The House B/L (HBL) is issued by the freight forwarder or consolidator. It names the actual exporter and the actual consignee of the goods. It is often issued on a FIATA form (FBL).

What must match

  • The container number and its ISO 6346 check digit.
  • The seal number.
  • The port of loading and the port of discharge.
  • The vessel and voyage.
  • Gross weight and number of packages — identical for a full container (FCL); in consolidation (LCL), the House B/Ls together must not exceed the Master B/L.
  • The nature of the goods, described in a compatible way.

What may legitimately differ

  • Shipper and consignee: forwarders on the Master, actual parties on the House.
  • The bill of lading number: each document has its own.
  • The freight terms (prepaid or collect): they follow the contract at each level.
  • The number of originals: a non-negotiable Sea Waybill has none to surrender.

The most common mistakes

  • The two bills of lading filed in the wrong slots: a Master taken for a House, and the other way round.
  • A DRAFT used instead of the final document.
  • The same copy of a bill of lading uploaded twice, and its weights added up.
  • One digit of the container number copied wrongly on one of the two documents.

Frequently asked questions

Must the House B/L and Master B/L show the same gross weight?

For a full container, yes. In consolidation, one Master B/L covers several House B/Ls: it is the sum of the Houses that must stay consistent with the Master, not each House on its own.

How can I tell which document is the Master B/L?

The Master B/L is issued by the shipping line (its prefix often appears in the B/L number) or by the upstream transport operator, and its consignee is the forwarder or its agent. The House B/L names the actual importer.

Can a Sea Waybill act as the Master B/L?

Yes. A Sea Waybill is a non-negotiable transport document: the goods are delivered to the named consignee without surrendering originals. It plays the same role as a Master B/L when documents are reconciled.

These checks, on every shipment, in one minute

ClearBerth compares packing list, House B/L, Master B/L, invoice and EUR.1, and shows you every discrepancy with the document to correct.

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