The headline difference is development costs: US GAAP generally expenses them; IFRS capitalizes them once criteria are met. For an R&D-heavy multinational this is a recurring earnings and asset-base divergence.
| Area | US GAAP (ASC 730 / 350) | IFRS (IAS 38) |
|---|---|---|
| Research costs | Expensed as incurred | Expensed as incurred |
| Development costs | Expensed as incurred | Capitalized once the six criteria are met (technical feasibility, intent, ability, future benefits, resources, measurability) |
| Software | Special rules — internal-use (ASC 350-40), for-sale (ASC 985-20) | Within IAS 38 (development criteria) |
| Revaluation model | Not available | Available where an active market exists (rare) |
An educational reference and original synthesis — not investment advice, and not a substitute for the standard or for professional accounting guidance. For authoritative measurement detail, consult ASC 730 / ASC 350 / IAS 38 directly.