Publish: December 23, 2025
What are the audit requirements involving TAN?
Verification of TAN Allotment
- Auditors must confirm that the assessee has been allotted a valid TAN under Section 203A of the Income Tax Act.
- The TAN must match the entity’s legal name and PAN, and should be correctly mentioned in all TDS-related documentation.
- If the entity is required to deduct or collect tax but does not have a TAN, it must be reported as a compliance failure.
Disclosure in Tax Audit Report (Form 3CD)
- Under Clause 34 of Form 3CD, auditors are required to:
- Report the TAN of the assessee
- List the sections under which TDS/TCS is applicable
- Mention the amounts deducted or collected, deposited, and any shortfalls
- This disclosure is mandatory and forms part of the audited financial statements submitted to the Income Tax Department.
Examination of TDS/TCS Compliance
- Auditors check whether:
- TDS/TCS was deducted at the correct rates
- Tax was deposited within due dates
- TDS returns were filed quarterly using the correct TAN
- Form 16/16A certificates were issued to deductees on time
- Any non-compliance (like late deposit, short deduction, or wrong TAN usage) is reported in the audit findings.
Reconciliation with Form 26AS and TRACES
- Auditors reconcile the TDS data recorded in books of accounts with:
- Form 26AS (to verify deductee credits)
- TRACES portal records (to ensure filing and challans match)
- This process confirms whether the TAN has been used correctly and whether the tax deducted has reached the deductees.
Reporting of Penalties and Defaults
- If the entity has incurred penalties under Section 272BB or Section 271H for TAN-related failures (e.g., not quoting TAN, late filings), auditors must:
- Report the nature and amount of penalties
- State the reasons and corrective actions (if any)
- This ensures full transparency of TAN compliance as part of the entity’s audit trail.
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