Multi-basis accounting: STAT, GAAP and IFRS on one portfolio
Learning objectives
- —Distinguish statutory, GAAP and IFRS measurement objectives
- —Explain amortised cost versus fair value classification
- —Describe why parallel ledgers exist
An insurer's investment portfolio is reported on several bases at once. US statutory accounting (SAP) serves solvency supervision and is deliberately conservative. US GAAP and IFRS serve investors and measure performance. The same bond can therefore be carried at amortised cost on one basis and fair value on another.
Visual to build
One security fanning out into three ledgers — STAT, GAAP, IFRS — with the differing measurement rules annotated on each branch.
Real-world case
A US life insurer with an EMEA parent must report the same portfolio under SAP and IFRS 9/17. Map the duplicated effort and the single points of failure.
Practical exercise
Take a corporate bond bought at a discount and state how income and carrying value differ across the three bases.
Vocabulary used: Statutory accounting (SAP) · Accounting mismatch