Avoid common CRS & FATCA reporting errors: a checklist for financial institutions

Reporting requirements under the Common Reporting Standard (CRS) and the Foreign Account Tax Compliance Act (FATCA) are complex and ever-evolving. Even minor mistakes in data handling, due diligence, or submission formatting can lead to validation failures, regulatory scrutiny, or penalties.

This checklist highlights the most frequent errors seen in CRS and FATCA reporting and explains how financial institutions can prevent them, from onboarding and due diligence through to submission and corrections.

Avoid common CRS & FATCA reporting errors

1. Register too late for a GIIN

Financial institutions should register for a Global Intermediary Identification Number (GIIN) well before reporting deadlines. Waiting until late in the cycle can result in outdated GIIN lists and validation problems during submission.

2. Relying solely on FATCA GIINs for self-certification

Relying only on a FATCA GIIN to validate whether an entity is reportable is insufficient. Institutions must conduct thorough due diligence when opening new accounts, including verifying tax residency and collecting all necessary documentation.

3. Incorrect or missing TINs and identifiers

Reports with dummy or missing Tax Identification Numbers (TINs), dates of birth, or other key identifiers often fail validation checks. Financial institutions must collect and verify accurate TINs for all relevant accounts and maintain updated documentation.

4. Misspellings and formatting errors

Simple issues like misspelled names, incorrect character formatting, or discrepancies with published GIIN records can trigger rejections during the validation process. Pay attention to exact data formatting, spacing, and case sensitivity.

5. Delaying corrections

Many institutions wait until an AEOI portal re-opens to submit corrections, often months after the reporting deadline. Address errors as soon as they are identified to avoid penalties and unnecessary risk.

6. Inaccurate account status

Failing to mark closed or inactive accounts correctly can lead to inaccurate reporting and audit issues. Ensure that accounts closed during the reporting period are appropriately flagged and included in corrections when required.

7. Neglecting updates to account changes

When a financial institution changes its legal name or other key details, associated GIIN accounts and AEOI portal registrations must be updated promptly. Out-of-date information often leads to submission rejections.

8. Failing to stay current with regulatory changes

CRS and FATCA guidance continues to evolve. Institutions that do not monitor updates risk using outdated rules and schemas, leading to non-compliance and potential penalties.

9. Misinterpreting changes

Even when regulatory updates are monitored, incorrect interpretation can introduce compliance gaps. Ensure that internal policy updates are clear, accurate, and implemented across all relevant teams.

10. Conflicting internal data sources

Using inconsistent data from multiple systems increases the risk of discrepancies in reports. Standardise data sources and implement robust monitoring to eliminate conflicts at the point of reporting.

Frequently asked questions

Why is accurate TIN and identifier data important in CRS & FATCA reporting?

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Accurate Tax Identification Numbers (TINs), dates of birth, and other identifiers are essential for successful validation and compliance. Missing or incorrect identifiers are among the most common errors flagged during CRS and FATCA report processing.

What happens if I submit incorrect or incomplete CRS/FATCA reports?

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Submitting incomplete or incorrect reports can lead to validation failures, increased regulatory review, potential penalties, and reputational risk. Ensuring data accuracy and timely corrections helps mitigate these issues.

Can automation help reduce CRS and FATCA reporting errors?

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Yes. Automated regulatory reporting solutions can validate data, enforce schema requirements, track changes, and enable easy corrections. Automation reduces manual effort and the likelihood of human error.

Where can I find common reporting error guidance by tax authorities?

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Competent authorities (e.g., Revenue Jersey, IRD Hong Kong) regularly publish reporting error guidance that outlines frequent mistakes in AEOI reporting and how to mitigate them.

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