Income Tax Audit Services in India
The income tax audit under Section 44AB of the Income Tax Act, 1961 is one of the most widely applicable statutory obligations in Indian taxation. Every year, lakhs of businesses, professionals, and firms cross the prescribed turnover or gross receipt thresholds and become liable to get their accounts audited by a Chartered Accountant — and to furnish the tax audit report in Form 3CA or Form 3CB, along with the detailed statement in Form 3CD, before the due date.
The tax audit is not a formality. Form 3CD contains 44 clauses — covering everything from depreciation calculations and disallowances under Section 40A to cash transactions above the limit, TDS compliance, loans and advances, payments to related parties, and ICDS adjustments. A carelessly prepared tax audit report exposes the taxpayer to scrutiny assessment, disallowances, and penalties — while a professionally prepared one becomes a shield that demonstrates compliance and reduces audit risk.
N D Savla & Associates has been conducting income tax audits for businesses, professionals, LLPs, partnership firms, and companies across Mumbai and India for over 25 years. Our tax audit team combines deep knowledge of the Income Tax Act with practical experience across every industry — so every clause of Form 3CD is filled with precision, not approximation.
What Is an Income Tax Audit Under Section 44AB?
An income tax audit under Section 44AB of the Income Tax Act, 1961 is a mandatory audit of the books of accounts of a taxpayer — business or professional — whose turnover, gross receipts, or income crosses the prescribed threshold in a financial year. The audit must be conducted by a Chartered Accountant in practice, who furnishes a tax audit report in the prescribed form — either Form 3CA (where the accounts are also audited under another law, such as the Companies Act) or Form 3CB (where no other audit is required) — along with Form 3CD, the detailed statement of particulars.
The income tax audit under Section 44AB is separate from the statutory audit under the Companies Act and from the GST audit. A company may require all three — a statutory audit, a GST audit for GSTR-9C, and a tax audit under Section 44AB — each with different forms, different scopes, and different due dates.
The purpose of the income tax audit is to verify that the books of accounts are maintained correctly, that income has been correctly computed, that disallowances have been properly applied, and that all prescribed details required by the Income Tax Department are correctly disclosed. A clean tax audit report significantly reduces the risk of a scrutiny notice and forms the foundation of a defensible income tax return.
Who Is Required to Get a Tax Audit Under Section 44AB?
The income tax audit threshold has been revised multiple times. Here are the current applicable thresholds for FY 2024-25 (AY 2025-26):
| Category of Taxpayer | Tax Audit Required If | Threshold | Relevant Provision |
|---|
| Business — General | Total sales, turnover, or gross receipts exceed the threshold | ?1 crore (?10 crore if cash receipts/payments = 5% of total) | Section 44AB(a) |
| Business — Presumptive Taxation (Section 44AD) | Taxpayer claims income below the presumptive rate (6%/8%) OR opts out after earlier adoption | If income declared is lower than prescribed percentage of turnover | Section 44AB read with Section 44AD |
| Profession — General | Gross receipts from profession exceed the threshold | ?50 lakh | Section 44AB(b) |
| Profession — Presumptive Taxation (Section 44ADA) | Taxpayer claims income below 50% of gross receipts | If income declared below 50% of gross receipts | Section 44AB read with Section 44ADA |
| Business — Specified transactions (Section 44AE, 44BB, 44BBB) | Taxpayer claims income below the specified presumptive rate | Turnover below the general limit but income below presumptive rate | Section 44AB(c)/(d)/(e) |
| LLP / Partnership Firm | Total turnover or gross receipts exceed ?1 crore (business) or ?50 lakh (profession) | Same as business/profession thresholds above | Section 44AB(a)/(b) |
?? Important: The ?10 crore threshold (instead of ?1 crore) applies only if cash receipts AND cash payments are each = 5% of total receipts and payments respectively during the year. If either exceeds 5%, the ?1 crore threshold applies.
Form 3CA, Form 3CB, and Form 3CD — What Each Form Is and When It Applies
Form 3CA — For Taxpayers Already Audited Under Another Law
Form 3CA is used when the taxpayer's accounts are already audited under any other law — most commonly the Companies Act 2013 (statutory audit) or the LLP Act. In Form 3CA, the tax auditor provides a declaration that the accounts have been audited under the other law and that the particulars in Form 3CD are true and correct to the best of their knowledge.
Form 3CB — For Taxpayers Not Audited Under Any Other Law
Form 3CB is used by taxpayers — typically proprietorships, partnership firms, LLPs (below the LLP Act audit threshold), and professionals — whose accounts are not otherwise audited under any law. In Form 3CB, the tax auditor certifies that they have examined the books of accounts and that the particulars in Form 3CD are true and correct. The tax audit report in Form 3CB carries the CA's full professional responsibility.
Form 3CD — The Statement of Particulars (44 Clauses)
Form 3CD is the detailed statement of particulars that accompanies both Form 3CA and Form 3CB. It contains 44 numbered clauses covering virtually every significant aspect of the taxpayer's tax position. Key clauses requiring particularly careful attention:
- Clause 13 — Method of accounting: Whether the mercantile or cash system is followed, and any change in the method of accounting during the year.
- Clause 14 — Method of valuation of stock: The method of stock valuation followed and whether there is any change, with the effect on profits quantified.
- Clause 17 — Amounts debited to P&L but disallowed: Personal expenditure, capital expenditure charged to revenue, and expenditure on exempt income — all must be specifically disclosed.
- Clause 18 — Depreciation: Depreciation as per books versus depreciation as per Income Tax Act (Section 32 rates) — differences must be reconciled.
- Clause 20 — Amounts not deductible — Section 40/40A: Payments to related parties exceeding fair market value (Section 40A(2)), cash payments exceeding ?10,000 (Section 40A(3)), and other disallowances must be specifically disclosed with amounts.
- Clause 21 — Amount deductible on payment basis: PF/ESI contributions, bonus, leave encashment paid after year-end but within the due date — or not paid at all — disclosed under Section 43B.
- Clause 26 — Loans and deposits: Cash loans or deposits accepted or repaid above ?20,000 must be disclosed with names and amounts — a frequent source of penalty under Section 269SS and Section 269T.
- Clause 34 — TDS compliance: Details of TDS deducted and deposited on time, along with instances of TDS non-deduction or late deposit — one of the most scrutinised clauses.
- Clause 36A — Cash receipts above ?2 lakh: Receipts above ?2 lakh in cash from a single person in a single day under Section 269ST must be specifically disclosed. Violation results in a 100% penalty.
- Clause 44 — Break-up of expenditure by GST registration: Total expenditure classified between registered and unregistered GST suppliers — enables cross-checking between income tax and GST data.
For the parallel GST compliance obligations that connect directly to Clause 44 and other tax audit disclosures, our GST Audit services ensure that the GST and income tax positions are consistent and reconciled.
How We Conduct an Income Tax Audit — Our 8-Step Process
- Document Collection and Books Review
We issue a structured document checklist to the client — covering audited financial statements (or draft financials for non-company taxpayers), profit and loss account, balance sheet, cash book, bank statements, sales and purchase registers, stock records, fixed asset register, TDS certificates (Form 26AS / AIS), loan account statements, and all supporting vouchers for significant items.
- Turnover Verification and Threshold Confirmation
We verify that the total turnover or gross receipts as reported in the books matches the actual threshold applicable for Section 44AB. For businesses claiming the higher ?10 crore cash threshold, we calculate the actual percentage of cash receipts and cash payments to confirm eligibility.
- Profit and Loss and Balance Sheet Verification
We verify that the P&L account and balance sheet have been correctly prepared. Key verification areas: revenue recognition, stock valuation (method consistent with prior year?), depreciation (calculated at Income Tax Act rates under Section 32 for the tax computation?), and provisions (which are deductible on payment basis under Section 43B?).
- Disallowance Computation — Sections 40, 40A, and 43B
We systematically compute all disallowances: Section 40(a) — TDS not deducted or deposited late on vendor payments; Section 40A(2) — payments to related parties exceeding fair market value; Section 40A(3) — cash payments above ?10,000 to a single person in a day; Section 43B — statutory dues (PF, ESI, professional tax) not paid before filing the return.
- TDS Compliance Review — Clause 34
We reconcile TDS deducted and deposited during the year with the applicable rates under Section 194C, 194J, 194H, 194I, and other relevant sections. We identify: (a) payments on which TDS was required but not deducted; (b) TDS deducted but deposited late; (c) TDS returns not filed. For ongoing TDS return support, our TDS Return Filing services cover Form 24Q, 26Q, and 27Q filing.
- Cash Transaction Review — Sections 269SS, 269T, and 269ST
We review all loan and deposit receipts during the year to identify any amounts above ?20,000 received or repaid in cash — prohibited under Section 269SS and Section 269T respectively. We also identify any cash receipts above ?2 lakh from a single person in a day, prohibited under Section 269ST and attracting a 100% penalty.
- ICDS Adjustments
Income Computation and Disclosure Standards (ICDS) notified under Section 145(2) require certain adjustments to income computed as per accounting standards. The most frequently relevant ICDS for our clients are ICDS I (accounting policies), ICDS II (valuation of inventories), ICDS III (construction contracts), ICDS IV (revenue recognition), and ICDS IX (borrowing costs).
- Form 3CD Preparation, Review, and Upload
We prepare the complete Form 3CD — all 44 clauses — based on the verification and computation work done in Steps 1–7. A draft is shared with the client for review and confirmation. Once approved, the tax auditor signs Form 3CA or Form 3CB and uploads the complete tax audit report on the Income Tax e-filing portal at incometax.gov.in under the client's PAN, within the due date — currently 30 September for most taxpayers and 31 October for those covered by transfer pricing.
Penalties for Non-Compliance — What Is at Stake If You Miss the Tax Audit
| Non-Compliance | Penalty / Consequence | Section | Waivable? |
|---|
| Failure to get tax audit done by due date | 0.5% of turnover or gross receipts — maximum ?1.5 lakh | Section 271B | Yes — if reasonable cause shown (illness, natural disaster, system failure) |
| TDS not deducted on vendor payments | 30% of the expenditure on which TDS was not deducted is disallowed | Section 40(a)(ia) | No — disallowance is automatic; deductible only in the year TDS is eventually deposited |
| Cash payment above ?10,000 to single party in a day | Full amount of the payment is disallowed as a deduction | Section 40A(3) | Exceptions for specific categories under Rule 6DD; others are absolute |
| Cash loan/deposit accepted above ?20,000 | Penalty equal to the amount accepted in cash | Section 271D read with Section 269SS | Reasonable cause defence available — but rarely accepted |
| Cash receipt above ?2 lakh from single person in a day | Penalty equal to the amount received in cash | Section 271DA read with Section 269ST | Reasonable cause defence available |
| Late filing of TDS returns after tax audit reveals default | Late fee of ?200 per day under Section 234E + penalty under Section 271H | Sections 234E and 271H | Section 234E mandatory; Section 271H has reasonable cause defence |
Who Can Conduct an Income Tax Audit Under Section 44AB?
Only a Chartered Accountant in practice — holding a valid Certificate of Practice (COP) issued by ICAI — can conduct a tax audit under Section 44AB and sign Form 3CA / 3CB / 3CD. A Cost Accountant, Company Secretary, or any other professional is not eligible.
ICAI has prescribed limits on the number of tax audits a CA can conduct in a financial year — currently 60 tax audits per CA partner. One important point: the tax auditor under Section 44AB need not be the same as the statutory auditor under the Companies Act. Many companies appoint different firms for statutory audit and tax audit — though having the same firm for both reduces the risk of inconsistency between the two sets of reports.
Tax Audit Due Date — Key Deadlines You Must Not Miss
- 30 September: Due date for furnishing the tax audit report for most taxpayers — businesses and professionals not required to file a transfer pricing report.
- 31 October: Due date for taxpayers required to furnish a report under Section 92E (transfer pricing report).
- Income Tax Return: The ITR for taxpayers liable to tax audit is due on 31 October (or 30 November for transfer pricing cases). The tax audit report must be filed before the ITR.
?? The CBDT frequently extends the tax audit due date via notifications. Always check the latest CBDT notification before assuming the due date. Our team monitors all extensions and proactively informs clients of any changes.
For businesses that face scrutiny assessment after filing the tax audit report, our Scrutiny Assessment representation services cover preparation, documentation, and representation before the Assessing Officer.
Income Tax Audit — Key Focus Areas by Business Type
Manufacturing and Trading Companies
Stock valuation consistency, depreciation under Section 32 versus book depreciation, Section 40A(3) cash purchases, raw material credit notes, job work TDS compliance under Section 194C, and GST-income tax reconciliation in Clause 44.
Professional Services — Doctors, Lawyers, Consultants, CAs
Gross receipt threshold under Section 44ADA; deductibility of professional expenses; TDS on fee income; cash receipts compliance under Section 269ST; Section 44ADA opt-out consequences; advance tax computation.
Real Estate Developers and Builders
Revenue recognition — project completion method versus percentage completion; Section 43CA — stamp duty value as deemed consideration for unsold inventory; TDS on sub-contractor payments under Section 194C; Section 80IBA deduction eligibility for affordable housing; GST-income tax differences on advance receipts.
Partnership Firms and LLPs
Partners' remuneration and interest deductibility within the limits of Section 40(b); working partner remuneration certification; TDS on partner payments; conversion to LLP tax implications; Section 44AD applicability.
Why N D Savla & Associates for Income Tax Audit Services
- 25+ years of tax audit experience. We have been conducting income tax audits across all entity types — companies, LLPs, firms, and proprietorships — for over 25 years. We know every clause of Form 3CD inside out.
- Form 3CD prepared with depth, not speed. Every clause is verified against the supporting records — not filled from management representations. Our Form 3CD reports are designed to stand up to a scrutiny notice, not trigger one.
- Disallowance computation integrated. We do not just report what happened — we compute all applicable disallowances under Sections 40, 40A, and 43B, so the tax computation is accurate from the outset and there are no post-return surprises.
- TDS and GST consistency check. We reconcile the income tax audit findings with the TDS return and GST return data — ensuring consistency across the three compliance streams that the department now cross-matches using AIS/TIS.
- Timely delivery before due date. We begin the tax audit process well before the September due date — typically in June or July — to avoid the last-minute rush that leads to errors and missed disclosures.
- Partner-supervised and partner-signed. Every tax audit is supervised by a CA partner who also signs the Form 3CA/3CB. The professional liability and the professional commitment are both at the partner level.
Frequently Asked Questions — Income Tax Audit Under Section 44AB
What is the income tax audit under Section 44AB and who is required to get it done?
An income tax audit under Section 44AB of the Income Tax Act, 1961 is a mandatory audit of the books of accounts of a taxpayer whose turnover or gross receipts exceed the prescribed threshold. For businesses, the threshold is ?1 crore (or ?10 crore if cash transactions are = 5%). For professionals, the threshold is ?50 lakh. The audit must be conducted by a Chartered Accountant in practice, and the tax audit report — Form 3CA or 3CB along with Form 3CD — must be furnished on the income tax portal before 30 September (or 31 October for transfer pricing cases).
What is Form 3CD and why does it matter?
Form 3CD is the detailed statement of particulars that accompanies the tax audit report. It contains 44 numbered clauses covering virtually every significant aspect of the taxpayer's tax position — depreciation, disallowances under Section 40 and 40A, Section 43B deductions, TDS compliance, cash transactions, ICDS adjustments, and GST reconciliation. The Income Tax Department uses Form 3CD as a primary source of information for risk-based selection of returns for scrutiny. A carelessly prepared Form 3CD can trigger a scrutiny notice; a well-prepared one demonstrates compliance and reduces the risk of departmental attention.
What is the penalty for not getting a tax audit done?
If a taxpayer required to get a tax audit under Section 44AB fails to do so by the due date, the penalty under Section 271B is 0.5% of total turnover or gross receipts — subject to a maximum of ?1.5 lakh. Additionally, where TDS non-compliance is discovered during the tax audit, 30% of the relevant expenditure is disallowed under Section 40(a)(ia) — which is typically a much larger financial impact than the Section 271B penalty itself.
Can the statutory auditor and the tax auditor be different persons?
Yes. The statutory auditor under the Companies Act and the tax auditor under Section 44AB can be different Chartered Accountants or CA firms. Both must be CAs in practice with valid Certificates of Practice. However, having the same CA firm for both reduces the risk of inconsistency between the treatment of a provision in the statutory financial statements and the disallowance position taken in Form 3CD.
What is the difference between a tax audit under Section 44AB and a scrutiny assessment?
A tax audit under Section 44AB is a mandatory, proactive compliance exercise conducted by the taxpayer's own CA — verifying the books and filing Form 3CA/3CB/3CD before the due date. A scrutiny assessment under Section 143(3) is a reactive process initiated by the Income Tax Department after the return is filed. A properly conducted tax audit significantly reduces the risk of a scrutiny notice by demonstrating that the accounts have already been independently verified.