For the complete documentation index, see llms.txt. This page is also available as Markdown.

OPEX on a Voyage

When a vessel is assigned to a voyage, the system stamps the vessel's OPEX lines onto the voyage. These voyage-level OPEX lines are used to calculate the total OPEX, which feeds directly into the Voya

Viewing OPEX Lines on a Voyage

Open the voyage drawer and navigate to the Operating Cost tab. The list shows all OPEX lines currently active on this voyage, with all columns visible.


Managing OPEX Lines

OPEX lines on a voyage can be created, edited, and deleted independently. Changes here affect only this voyage and do not propagate back to the vessel or vessel type records.

Adding a line:

  1. Click Create in the Operating Cost tab.

  2. Enter the fields (same fields as vessel-level OPEX lines; see Maintain OPEX on a Vessel).

  3. Save. The line is added and the voyage OPEX total recalculates immediately.

Editing a line:

All columns are editable except Opex Cost Code. Changes trigger an immediate recalculation.

Deleting a line:

Select the line and click Delete. The voyage OPEX total recalculates immediately.


OPEX Calculation

Total OPEX is calculated as Σ (Daily Rate × Voyage Days) across all active lines.

If an OPEX line's currency differs from the voyage currency, the rate is converted using the exchange rate at the voyage start date before being included in the total.

The calculated total is shown in the voyage P&L as Total OPEX (in voyage currency) and is deducted in the Voyage Result.


Automatic Recalculation

The OPEX total recalculates automatically whenever any of the following change:

  • The vessel assignment on the voyage

  • Total voyage days

  • Offhire days (where the offhire record has a deduction flag set)

  • Any OPEX line on the voyage is added, edited, or deleted


Offhire Impact

When a vessel is on offhire and the offhire record carries a deduction flag (Deduct from Operational Cost, Deduct from Hire Payable, or Deduct from Hire Receivable), the OPEX accrued during that offhire period is deducted from the appropriate target:

Voyage Type
Deduction Target

VC Voyage (owned vessel)

OPEX cost

All active OPEX lines on the voyage are considered applicable to the offhire period.

Note: If the OPEX currency differs from the voyage currency, conversion is applied before the deduction is made.

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