FATCA Build & Configure (including Testing)

We implement the Target Design: configure mappings & validations for Form 8966/local XML, stand up controls & evidence templates, onboard to portals, and run structured testing so you are ready for dry-run and go-live.

Request a fixed-fee scope Back to FATCA Implementation & Redesign

Who it’s for

  • Reporting entities that completed Target Design and now need hands-on implementation.
  • Teams seeking repeatable builds with reviewer-ready controls, evidence packs, and test results.
  • Institutions aligning FATCA with QI to reduce duplicate work across regimes.

What we build & configure

Mappings & Validations

  • Field-level mapping to Form 8966 / local XML
  • Business & schema validations (XSD, code sets)
  • Reference tables & classification logic

Controls & Evidence

  • Control calendar & KRIs (design & operation)
  • Reviewer checkpoints & sign-off trail
  • Evidence templates & dossier structure

Portals & Registrations

  • GIIN/local portal onboarding plan
  • Test submissions where available
  • Operational model (roles/SLAs/support)

Exception & Corrections Flow

  • Issue intake → triage → fix → re-file
  • Receipts/ACKs, audit trail, query handling
  • Korrekturen & Re-filings playbook

Automation & Tooling

  • Reusable validation scripts/rules
  • Reconciliation sheets (GL/tie-outs)
  • Metrics & dashboard basics

Documentation & Training

  • Procedures & checklists
  • Runbooks & quick-reference guides
  • Role-based training sessions
FATCA Reporting (Form 8966) Corrections & Re-filings

Testing included

Unit & Rule Tests

  • Validation of each mapping rule
  • Negative tests for boundary conditions
  • Reference/code-set coverage checks

Schema & Consistency

  • XSD validation for XML outputs
  • Cross-field consistency (classifications, TIN/GIIN)
  • Sample-based data lineage verification

Integration & UAT

  • End-to-end test with sample files
  • Portal test submissions where possible
  • UAT defects log & retest results

Testing outcomes roll forward into Dry-Run & Reconciliation to validate with larger samples and tie-outs.

How we work

  1. 1) Build plan & environments

    Confirm acceptance criteria from Target Design; align roles, environments, and portal timelines.

  2. 2) Configure & document

    Implement mappings/validations, evidence templates, controls, and exception workflows with versioned docs.

  3. 3) Testing & hardening

    Run unit/integration/UAT, fix defects, perform schema & consistency checks, and prepare build sign-off pack.

  4. 4) Build sign-off → handover

    Deliver the Build Pack (configs, tests, results, procedures) and prepare for Dry-Run & Reconciliation.

Deliverables you receive

Build Configuration Pack

Mappings/validations, reference tables, exception workflows, portal setup details.

Controls & Evidence Suite

Control calendar, KRIs, checklists, evidence templates, reviewer checkpoint logs.

Test Results & Sign-off

Unit/integration/UAT results, defect log & remediation, schema/consistency checks, build sign-off memo.

Options & combinations

  • Independent or with Internal Audit: Align testing artifacts to your IA methodology.
  • QI alignment: Shared documentation & controls; pools/rates mapping and 1042-S/1042 tie-outs.
  • Automation add-on: Lightweight scripts & dashboards for recurring validations and KRIs.
Optional: QI Withholding & 1042-S Hardening

What’s next

Dry-Run & Reconciliation

Larger samples, GL/tie-outs, fixes & re-tests → go/no-go for live filings.

Go-Live & Submission

Final filings, receipts/ACKs, authority queries; corrections as needed.

Handover & Certification Support

Operating handbook, training, RO brief check and certification support.

Next: Dry-Run & Reconciliation RO Certification Support (FATCA)