
Obsolete Inventory Write-Downs: GAAP's Lower of Cost or Net Realizable Value Rule Explained
GAAP requires inventory to be reported at the lower of cost or net realizable value under ASC 330; here's how to identify obsolete and slow-moving stock, calculate the write-down, and record it while satisfying the IRS's stricter subnormal-goods test under Treasury Regulation §1.471-2(c).










