Tax Reporting

FATCA/CRS Data Readiness Checklist

Reduce remediation by aligning onboarding data to reporting rules early.

January 10, 2026 · 1 min read · Harlyz Advisory

The data gaps that slow reporting

Incomplete self-certifications and inconsistent entity classifications are the most common sources of remediation. Regulators expect you to show how data is validated before submission.

A readiness checklist

  • Validate entity classifications against current rules
  • Centralize self-certification storage
  • Align XML reporting fields with source data

Where to start

Begin with onboarding data and work forward. A clean intake process lowers downstream errors more than any late-stage review.

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