FATCA compliance system for wealth management

Context

• Client records and product structures varied; binary “US person yes/no” was insufficient without supporting evidence trails.
• Compliance teams needed repeatable packaging for filing without analysts re-deriving numbers in spreadsheets each cycle.

Problem

• Source systems were authoritative for accounts but not for classification decisions that lived in policy interpretation.
• Manual assembly of filing extracts introduced version drift between teams.

Approach

• Captured classification decisions with references and reviewer identity; immutable history for sensitive changes.
• Built export pipelines with checksums and reconciliation steps against upstream feeds.
• Separated policy updates from engineering releases where possible to avoid emergency code changes during filing windows.

System / architecture

• Structured datastore for entities, classifications, and evidence links; service layer for export generation.
• Role separation between analysts, reviewers, and IT operations.

Outcome

• Shorter filing cycles with fewer last-minute reconciliation scrambles.
• Auditors and internal review could follow a decision from source evidence to filed output.

Representative regulatory reporting system; institution not named. Not legal or tax advice.