Meaning
A specific duration of time separating the publication of a commodity index and its application to customer invoices is a standard feature in energy and raw material contracts. This temporal index lag arises because index publishers need time to compile and release monthly market averages. Supply agreements define the exact month to be used for pricing, preventing disputes when market rates fluctuate rapidly.
It ensures both buyer and seller agree on the billing rate before the invoices are issued.
Time Delay
The period between the physical shipment of goods and the publication of the pricing index determines the billing schedule. It can range from a few days to several months depending on the complexity of the market. Long term supply contracts must state this period clearly to maintain a consistent cash flow.
This clarity allows accounts receivable teams to process bills without unexpected delays.
Billing Reconciliation
Adjustments to the preliminary invoices are made once the final monthly index numbers are published. This process ensures the buyer is charged the correct contract rate.
Price Exposure
Holding inventory during periods of high price volatility increases the financial risk for the distributor. It highlights the importance of matching pricing indices with physical delivery dates.