New Reporting Norms: Draft Form 166 to Capture Detailed Account & TIN Information



Quick Summary
The Income-tax Department has unveiled Draft Form 166, a new reporting standard for financial institutions under Section 508(1) of the Income-tax Act, 2025. This form mandates detailed information about reportable accounts, including account holder specifics, branch details, account summaries, and disclosures for individuals, entities, and controlling persons. It aims to boost transparency and align with international tax reporting frameworks.

The Income-tax Department has introduced Draft Form No. 166 prescribing the format for filing the Statement of Reportable Account under Section 508(1) of the Income-tax Act, 2025.

The proposed form lays down a comprehensive reporting structure for financial institutions and other reporting entities required to furnish details of reportable accounts.

The draft format is expected to strengthen transparency, cross-border tax reporting, and regulatory data accuracy.

New Form 166: Detailed Account and TIN Reporting Norms

Structured Reporting Framework in Draft Form No. 166

Draft Form No. 166 is divided into two major parts:

Part A: Statement Details

This section captures:

  • Reporting Entity Name and Identification Number
  • Global Intermediary Identification Number (GIIN)
  • Registration details and reporting entity category
  • Statement type, statement number, and reporting period
  • Correction reasons and report types

This portion ensures that each submission is uniquely identifiable and traceable.

Part B: Report Details (Account-Level Information)

Part B requires detailed reporting for each account being reported. It includes:

1. Account Information

  • Account number, type, and category
  • Account holder name and status
  • Self-certification and documentation status
  • Joint account details
  • Date of closure (if applicable)

2. Branch Details

  • Branch reference number
  • Address, contact details, and country/state codes

3. Account Summary

  • Year-end account balance or value
  • Aggregate gross interest and dividend paid
  • Gross proceeds from sale of property
  • Other income credited
  • Aggregate credits and debits

Individual, Entity & Controlling Person Disclosures

The draft form introduces extensive disclosure requirements depending on the nature of the account holder:

Individual Account Holder Details

  • PAN and Aadhaar
  • Nationality and tax residency
  • Tax Identification Number (TIN)
  • Occupation and date of birth
  • Address and contact information

Legal Entity Account Holder Details

  • Constitution type and incorporation details
  • Nature of business
  • PAN and foreign identification numbers
  • Country of residence and incorporation
  • TIN and issuing country

Controlling Person Details

Where the account holder is an entity, reporting must also include information of controlling persons, including:

  • PAN/Aadhaar
  • Nationality and tax residency
  • TIN details
  • Occupation and identification information

Compliance Implications

The detailed reporting architecture in Draft Form No. 166 suggests a strong alignment with global tax transparency frameworks such as FATCA and CRS-style disclosures. Financial institutions and reporting entities will need to:

  • Upgrade compliance systems
  • Ensure accurate self-certification processes
  • Strengthen KYC documentation
  • Validate tax residency and TIN data

Given the granular level of information required, early system preparedness will be crucial once the form is notified in its final form.

What Stakeholders Should Do

Banks, financial institutions, NBFCs, and other reporting entities should:

  • Review internal reporting systems
  • Map data fields with Draft Form No. 166 requirements
  • Train compliance teams
  • Monitor further notifications for final implementation timelines

The draft indicates a move towards more structured and digitally standardized financial reporting under the Income-tax Act, 2025

FAQ :

Draft Form 166 is a proposed format for filing the Statement of Reportable Account under Section 508(1) of the Income-tax Act, 2025, requiring financial institutions to report detailed account information.

The form requires details such as reporting entity information, account-level data including account number, balance, and income, as well as disclosures on account holders (individuals and entities) and their controlling persons, including TIN and PAN.

The form aims to strengthen transparency, improve cross-border tax reporting, and enhance the accuracy of regulatory data, aligning with global tax transparency frameworks.

Financial institutions, banks, NBFCs, and other reporting entities that are required to furnish details of reportable accounts under the Income-tax Act, 2025.

Institutions need to upgrade compliance systems, ensure accurate self-certification processes, strengthen KYC documentation, and validate tax residency and TIN data to meet the granular reporting requirements.




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Finance news reporter covering taxation, GST, income tax, business compliance, and economy updates. I simplify complex financial topics into easy-to-understand articles for professionals, taxpayers, and business owners on leading finance and tax platforms.

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