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What Is an Income Tax Audit under Section 44AB?
A Tax Audit under Section 44AB is an examination of an assessee's books of account to verify the accuracy of financial statements, ensure compliance with income tax provisions, and prevent tax evasion. The audit must be conducted by an independent practicing Chartered Accountant holding a valid Certificate of Practice (COP).
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Statutory Turnover Thresholds for Tax Audit (AY 2026-27)
| Category | Standard Turnover Threshold | Enhanced Digital Threshold (≤5% Cash) | Presumptive Taxation Condition |
|---|---|---|---|
| Commercial Businesses | Exceeding ₹1 Crore | Exceeding ₹10 Crore | If turnover is up to ₹2 Cr (or ₹3 Cr if cash ≤ 5%) and declaring ≥ 6% / 8% profit under Sec 44AD, no audit is required. |
| Specified Professionals | Exceeding ₹50 Lakhs | Exceeding ₹75 Lakhs | Under Sec 44ADA, if gross receipts are ≤ ₹75 Lakhs and net profit is declared ≥ 50%, audit is exempt. |
| Opting Out of 44AD | Exceeding Basic Exemption | N/A | If an assessee opts out of Sec 44AD within 5 consecutive years and profit is below taxable limit, audit is mandatory. |
Understanding the 5% Cash Condition for ₹10 Crore Exemption
To qualify for the elevated ₹10 Crore threshold, an enterprise must satisfy both of the following dual criteria during the relevant financial year:
- Receipts Test: The aggregate of all cash receipts (including sales, turnover, loans, deposits, and capital introduced) must not exceed 5% of aggregate receipts.
- Payments Test: The aggregate of all cash payments (including business expenditures, asset purchases, loan repayments, and drawings) must not exceed 5% of aggregate payments.
Form 3CA vs Form 3CB vs Form 3CD Comparison
Form 3CA (Statutory Audit Exists)
Applicable when the books of account of the person carrying on business or profession have been audited under any other statute (e.g., corporate balance sheet audit under the Companies Act, 2013).
Attached with Form 3CD AnnexureForm 3CB (No Other Statutory Audit)
Applicable for assessees whose accounts are not required to be audited under any other law (e.g., Sole Proprietorships, LLPs not crossing LLP audit limits, and Partnership firms).
Attached with Form 3CD AnnexureStatutory Due Dates & Penalties under Section 271B
- Audit Report Submission Due Date: September 30 of the relevant Assessment Year (for non-transfer pricing cases).
- Income Tax Return (ITR-6 / ITR-5 / ITR-3) Due Date: October 31 of the Assessment Year.
- Transfer Pricing (Form 3CEB) Due Date: October 31 for the report, and November 30 for the ITR.
If an assessee fails to upload the tax audit report by September 30, the Assessing Officer may levy a penalty equal to:
Lower of:
(a) 0.5% of total sales, turnover, or gross receipts, OR
(b) ₹1,50,000 (One Lakh Fifty Thousand Rupees).
Frequently Asked Questions
Can Section 271B penalties be waived under Section 273B?
Yes. Under Section 273B, no penalty shall be imposable under Section 271B if the assessee proves that there was a reasonable cause for the failure, such as natural calamities, severe illness of the auditor/assessee, or portal technical glitches officially acknowledged by the CBDT.
How does a taxpayer assign a Chartered Accountant on the Income Tax Portal?
Log in to incometax.gov.in, navigate to 'Authorised Partners' > 'My Chartered Accountant' > 'Add CA'. Enter the CA's Membership Number, select the relevant form (Form 3CA-3CD or 3CB-3CD) and the Assessment Year. Once the CA uploads the report with their digital signature (DSC), the taxpayer must log in and 'Accept' the submission.