Interim Reporting — ASC 270 vs IAS 34

The key divergence is conceptual: US GAAP takes an integral view, IFRS a discrete view — which changes how some costs hit interim periods.

Area	US GAAP (ASC 270)	IFRS (IAS 34)
View	Integral — an interim period is part of the annual period	Discrete — each interim period stands on its own
Cost recognition	Some costs allocated/estimated across the year	Recognized in the interim period incurred (with exceptions)
Income taxes	Estimated annual effective rate	Estimated annual effective rate (a discrete-view exception)

The integral vs discrete distinction affects interim inventory write-downs, certain accruals, and cost deferrals.

• SAP implementation: period-end close and interim reporting logic in SAP Group Reporting — forthcoming under SAP & Enterprise Systems.

An educational reference and original synthesis — not investment advice, and not a substitute for the standard. Consult ASC 270 / IAS 34 directly.