Field Notes
When Vendor Credits Fail Compliance Tests
A credit memo reduces what you owe, but compliance asks a sharper question: did the credit reverse the same cost centre, period, and tax treatment as the original charge?
We regularly see credits applied to a corporate overhead centre while the overcharge hit a product line. The P&L looks cleaner overall, yet product margins remain distorted and internal chargeback reports stay wrong.
Another failure mode is timing. A credit booked in a new fiscal year for a prior-year overcharge may require explicit disclosure under your local closing policy.
During attestation work, we trace credit serial numbers back to the disputed invoice lines. If the vendor cannot produce that link, treat the credit as incomplete remediation.
Finance teams that document credit routing rules in the cost policy give auditors—and their own controllers—a clear pass/fail test.