Line Item

A line item is the basic structural element in a procurement instrument that describes and organizes a required product or service. It is the unit against which a buyer sets pricing, delivery, inspection, acceptance, invoicing and payment. The term includes a subline item, where one applies. This definition comes from the contract-quality material published by the U.S. Department of Defense, which draws on the Federal Acquisition Regulation (DoD contract quality presentation).

In defence procurement, a line item captures a separately identifiable good or service that the government needs to buy. It can be delivered or performed individually. Each line item stands as its own requirement inside a larger contract, so a single contract can hold many line items with different quantities, prices and delivery dates (DoD Line Item Guide).

What a line item contains

DoD guidance sets out what separately identifiable line and subline items include:

• a description of the good or service
• a Product or Service Code
• a quantity and a unit of measure
• inspection and acceptance information
• a delivery schedule or performance period

The same guidance states that fixed-price line items include both unit prices and total prices. Together, these elements let the buyer inspect, accept and pay for each item on its own terms (DoD PGI 204.71).

Line item numbers and subline items

A line item number, or LIN, is the numeric or alphanumeric identifier assigned to a line item. It lets the buyer and the supplier refer to the same requirement in the contract, in deliveries and on invoices (DoD Line Item Guide).

A subline item is a subordinate element within the line-item structure. It breaks a line item into smaller parts when the buyer needs to track them separately. The Uniform Contract Line Item Numbering System (UCLINS) is the DoD system that governs how contract line and subline items are numbered and what content they must carry (DoD PGI 204.71).

Related terms and where the definition comes from

The most common related term is contract line item, meaning a separately identified product or service to be delivered under a contract. The wording above comes from U.S. Federal Acquisition Regulation and DoD guidance, where line items structure requirements, prices, deliveries, acceptance and payment.

NATO keeps its official terminology in the NATOTerm database. Buyers and suppliers working on allied defence projects can use it to check how NATO words its own terms.

On the Canadian financial side, Public Services and Procurement Canada publishes a chart of accounts under its payments and accounting services. Suppliers who invoice the federal government can consult it for the accounting framework behind payment.

What a line item means for a supplier bidding on Canadian public contracts

Treat every line item as a separate commitment. Each one carries its own description, quantity, unit of measure, price and delivery or performance period, and each is inspected, accepted and paid on its own. Price every line in the format the solicitation asks for. For fixed-price items, give both the unit price and the total price.

Read the pricing and delivery tables of each solicitation closely, because the buyer's own instructions govern how items are numbered and priced. Keep your invoices aligned with the line item numbers in the contract, so each delivery matches the item the buyer accepted. A consistent link between line item, delivery and invoice makes acceptance and payment easier to follow.