OCI is a period flow. AOCI is the related cumulative balance within equity. The two can differ in sign and amount because AOCI includes prior periods, reclassifications, tax effects, ownership changes, and topic-specific movements.
Calling AOCI a reserve can mislead if the word suggests cash was placed in a separate account. The balance describes accumulated recognized changes routed through OCI. It does not identify where the entity's cash is held or how an underlying asset or liability is measured.
Roll forward by component
Do not net unrelated OCI components into one unexplained change. For each component, show opening AOCI, current-period OCI before reclassification, amounts reclassified or otherwise transferred under applicable guidance, tax, ownership attribution, and ending AOCI. Tie the total to equity and each component to the underlying accounting schedule.
ASC 220-10-45-14 places total OCI in an equity component separate from retained earnings and additional paid-in capital. The next control is component detail: ASC 220-10-45-14A requires the changes in each accumulated component on the face of the statements or in the notes. A total-only tie can therefore balance while hiding an error in one component.
Put the concept to work
Understand this concept
- Explain why AOCI is a cumulative equity component and not cash, a separate investment account, retained earnings, or the current-period OCI amount.
Apply this concept
- Prepare a component-level AOCI rollforward from opening balance through current OCI, reclassification, tax and ownership effects to ending balance and equity-statement tie.
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Build on these ideas
- Accumulated other comprehensive income — Understand
To apply this concept: Required. The rollforward requires the learner to distinguish stock and flow amounts.
- Other comprehensive income — Understand
To understand this concept: Required. AOCI accumulates period OCI components after specified movements.
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Use this idea next
- Accumulated other comprehensive income — Apply
Required level here: understand. Required. The rollforward requires the learner to distinguish stock and flow amounts.
- Reclassification adjustment — Apply
Required level here: apply. Required. The reclassification must be reconciled through the cumulative component balance.
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