CRS due diligence looks straightforward on paper but breaks down quickly in practice. The failures we see most often during reviews fall into three categories: misclassified entities, stale self-certifications, and unreconciled controlling-person data.
Misclassification
Entities are often classified once at onboarding and never revisited, even after structural changes. A passive NFE can quietly become an investment entity following a change in mandate or asset mix, and the original classification stops being defensible. Build a periodic re-classification trigger into your governance calendar and tie it to specific events (mandate change, new shareholders, change in income mix).
Stale documentation
Self-certifications without a clear refresh cadence become liabilities. Track issue dates and proactively re-request when circumstances change. Where you rely on a change-in-circumstances framework, document the indicators you monitor so the rationale is repeatable across reviewers.
Controlling persons
Reconciling controlling persons against the entity self-certification is one of the most error-prone steps. Differences in spelling, residence or TIN format quickly create reporting noise. A single source of truth for the underlying KYC data avoids this drift.
Closing the loop
None of these pitfalls require a new system. They require a clear procedure, a named owner, and a regular review point. That is usually the difference between a quiet reporting cycle and a remediation project.
