Unit of account

Before you decide whether to record or measure something, identify the accounting boundary. The unit of account can be one item or a group. The company applies the relevant requirements to that unit.

A contract, physical object, and ledger account can each suggest a boundary, but none sets that boundary by itself. The applicable Accounting Standards Codification (ASC) guidance may require the company to separate components or evaluate several items together.

Decide what belongs together

Northline buys one machine. Assume the machine has no separately significant component under the applicable guidance. Northline therefore accounts for the machine as one unit in this example. Delivery and installation costs can enter the machine's cost without becoming separate equipment units.

Now consider a customer contract that includes equipment and a separate service promise. One signed contract does not necessarily produce one unit for revenue recognition. The company applies ASC 606 to identify the promises that must be accounted for separately as performance obligations.

The contrast matters. Counting contracts or physical objects cannot replace the required analysis.

Keep the unit separate from its account

An account is a recordkeeping category. A unit of account identifies what the company evaluates under a requirement. Several units can appear in one ledger account, and one transaction can create units reported in different accounts.

For example, an equipment account can contain many machines. If one machine develops an impairment indicator, apply the relevant Topic to determine whether the company tests that machine, a larger asset group, or another unit. The account title does not make that decision.

Use the applicable Topic to set the boundary

No single boundary works for every accounting question. Record the entity, transaction, reporting date, relevant rights and obligations, and the ASC paragraphs that establish the unit. If you use another Topic to identify the unit, retain that cross-reference in the research record.

FASB uses its Conceptual Framework to explain why a measurement needs an identified item. The framework is not authoritative generally accepted accounting principles. For a specific transaction, use the applicable ASC Topic or Subtopic to decide what the company accounts for together.

Use the unit in the next decision

Once you have identified the unit, ask whether the company should recognize it and which measurement basis applies. If the unit changes, repeat those decisions for the new boundary instead of carrying the old answer forward automatically.