2025 ActIncome-tax Act, 2025 is in force from 1 April 2026 — every page shows old (1961) & new (2025) section numbers side by side.Income-tax Act, 2025 in force · old & new sections shown
Section guide · Business

Section 44AB → Section 63: Tax audit — who needs it and when

A tax audit by a Chartered Accountant is compulsory once turnover or receipts cross set limits. The audit report (old Forms 3CA/3CB-3CD) is now Form 26.

1961: s.44AB 2025: s.63 Updated Nov 2026
Income-tax Act, 1961Section 44ABQuote this for FY 2025-26 (AY 2026-27) and earlier years
Income-tax Act, 2025Section 63Quote this from Tax Year 2026-27 (income from 1 April 2026)
BusinessTurnover above ₹1 crore (₹10 crore if cash ≤ 5%)
ProfessionReceipts above ₹50 lakh
ReportForm 26 (old 3CA/3CB-3CD)
2025 Acts.44AB→s.63
Section 44AB → Section 63: Tax audit — who needs it and when
How to read section numbers: s.80C→s.123 means Section 80C of the Income-tax Act, 1961 is now Section 123 of the Income-tax Act, 2025 (in force from 1 April 2026). Returns for FY 2025-26 still use the old numbers; Tax Year 2026-27 onwards uses the new ones. Section Finder

When audit applies

  • Business turnover above ₹1 crore — or above ₹10 crore when cash receipts and cash payments are each within 5%
  • Professional gross receipts above ₹50 lakh
  • Presumptive cases (44AD/44ADA/44AE) declaring income below the deemed rate while total income exceeds the basic exemption limit
  • F&O traders with a loss or low profit may also land here — see our F&O guide

Due dates

Statutorily, the audit report is due one month before the ITR due date — 30 September, with the return by 31 October. For AY 2026-27 the CBDT extended the audit-case ITR date to 21 November 2026. From Tax Year 2026-27 the regular dates return to 30 September (report) and 31 October (ITR).

Late audit report

Budget 2026 replaced the penalty for a late tax-audit report with a fixed fee — but a late audit also delays the return and can cost loss carry-forward. Start the audit by August.

Worked example

Example

Example: A trader's turnover is ₹4.5 crore, with cash sales of only 2% and cash payments of 1%. Audit is not required because the ₹10 crore limit applies.

Common mistakes

  • Ignoring the 5% cash test for the higher limit
  • Presumptive filers declaring lower profit without audit
  • Filing the ITR before the audit report is uploaded and accepted

Frequently asked questions

A practising Chartered Accountant. At VJ & Associates, audits are signed by the Chartered Accountants of our team.

Last reviewed on 11 November 2026 by Vinay Jaglan, VJ & Associates. Law and portal screens change — verify before acting, or ask the office.

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