What is the tax audit limit under Section 44AB for business?

The normal business threshold is Rs. 1 crore. It is Rs. 10 crore where cash receipts do not exceed 5% of aggregate receipts and cash payments do not exceed 5% of aggregate payments, subject to the statutory conditions.

What is the tax audit limit for profession under Section 44AB?

A person carrying on profession is generally required to obtain a tax audit where gross receipts exceed Rs. 50 lakh in the previous year, subject to the other provisions of Section 44AB and presumptive taxation rules.

Which forms are used for tax audit for AY 2026-27?

For FY 2025-26 relevant to AY 2026-27, Form 3CA with Form 3CD applies where accounts are audited under another law; otherwise Form 3CB with Form 3CD applies.

Income Tax Act 1961 - Tax Audit

Section 44AB of Income Tax Act: Tax Audit of Business and Profession

Updated: 28 September 2026 | AY 2026-27

Section 44AB of the Income-tax Act, 1961 requires specified persons carrying on business or profession to get their accounts audited by an accountant and furnish the prescribed tax audit report by the specified date. The section is designed to support correct reporting of taxable income and prescribed particulars.

Important for FY 2025-26: The normal tax audit threshold for business is Rs. 1 crore. For a business satisfying both 5% cash conditions for receipts and payments, the threshold is Rs. 10 crore. The general professional threshold is Rs. 50 lakh.

What does Section 44AB mean?

Section 44AB is the principal tax-audit provision under the Income-tax Act, 1961. Where a person falls within its prescribed conditions, the accounts of the relevant previous year must be audited by an accountant before the specified date, and the audit report must be furnished in the prescribed form.

For Section 44AB, the expression accountant takes its meaning from the Explanation below Section 288(2). In practical terms, the tax audit report is furnished by an eligible chartered accountant in accordance with the Act, the Income-tax Rules and the e-Filing procedure.

Section 44AB tax audit limits

Category	When tax audit is generally required
Business - normal rule	Total sales, turnover or gross receipts exceed Rs. 1 crore in the previous year.
Business - low cash transactions	The Rs. 1 crore limit is replaced by Rs. 10 crore where aggregate cash receipts do not exceed 5% of aggregate receipts and aggregate cash payments do not exceed 5% of aggregate payments.
Profession	Gross receipts from profession exceed Rs. 50 lakh in the previous year.
Presumptive income cases	Audit may also arise where income is declared below the deemed income under specified presumptive provisions or where Section 44AD(4) applies, subject to the precise statutory conditions.

For the enhanced Rs. 10 crore business threshold, both cash tests must be satisfied. The statutory rule also treats certain non-account-payee instruments as cash for the purpose of the 5% computation. Taxpayers should therefore examine the mode of every receipt and payment rather than looking only at cash deposited or withdrawn from a bank account.

Section 44AB and presumptive taxation

Section 44AB interacts with the presumptive taxation provisions. The Finance Act, 2023 amended the first proviso to Section 44AB so that the section does not apply to a person who declares profits and gains in accordance with Section 44AD(1) or Section 44ADA(1).

Section 44AD - eligible business

Section 44AD provides presumptive taxation for eligible assessees carrying on eligible business. Its turnover or gross-receipts ceiling is ordinarily Rs. 2 crore, increased to Rs. 3 crore where cash receipts do not exceed 5% of total turnover or gross receipts, subject to the statutory conditions.

Section 44ADA - specified profession

Section 44ADA provides presumptive taxation for eligible resident individuals and partnership firms other than LLPs engaged in specified professions. Its gross-receipts ceiling is ordinarily Rs. 50 lakh, increased to Rs. 75 lakh where cash receipts do not exceed 5% of total gross receipts, subject to the statutory conditions.

Separate audit consequences can arise where a taxpayer declares income below the presumptive amount or becomes subject to the restrictions in Section 44AD(4). The exact result depends on the applicable presumptive provision, income level and facts of the year.

Which tax audit form is required?

Rule 6G prescribes the audit report and statement of particulars for Section 44AB. For FY 2025-26 / AY 2026-27, the existing Income-tax Act, 1961 forms continue to apply:

Form	Use
Form 3CA with Form 3CD	Where the accounts of the business or profession are required to be audited under another law.
Form 3CB with Form 3CD	Where the accounts are not required to be audited under another law and tax audit is required under Section 44AB.
Form 3CD	Statement of prescribed particulars accompanying the applicable audit report.

Specified date and tax audit due date

The Explanation to Section 44AB links the specified date to the due date for furnishing the return of income under Section 139(1). The tax audit report is generally required to be furnished one month before the applicable return-filing due date.

For FY 2025-26 / AY 2026-27, the Income Tax Department states that the tax audit report due date is 30 September 2026. A taxpayer should still check whether any CBDT order or notification extends the statutory due date for the relevant assessment year.

Audit under another law

If a person is already required to get the accounts audited under another law, Section 44AB permits compliance by completing that audit before the specified date and furnishing the audit report required under that other law together with the further report prescribed for Section 44AB. This is why Form 3CA is used in such cases.

Penalty for failure to comply - Section 271B

Where a person fails to get the accounts audited or fails to furnish the tax audit report as required by Section 44AB, the Assessing Officer may impose a penalty under Section 271B. Under the Income-tax Act, 1961 applicable to AY 2026-27, the penalty is 0.5% of total sales, turnover or gross receipts, or Rs. 1,50,000, whichever is lower.

Reasonable cause: Section 273B provides protection from specified penalties, including Section 271B, where the taxpayer proves that there was reasonable cause for the failure. Whether reasonable cause exists depends on the facts and evidence of the case.

Practical compliance checklist

Identify whether the activity is business or profession and compute the correct turnover or gross receipts.
For the Rs. 10 crore business threshold, separately test cash receipts and cash payments against the 5% limits.
Check whether Sections 44AD, 44ADA, 44AE, 44BB or 44BBB affect the audit requirement.
Determine whether another law already requires an audit, to choose between Form 3CA and Form 3CB.
Ensure Form 3CD particulars reconcile with the books, financial statements, return of income and relevant tax records.
Furnish the report electronically within the applicable specified date and retain supporting records.

Frequently asked questions

Is tax audit compulsory when business turnover exceeds Rs. 1 crore?

Generally yes, unless an applicable exception or presumptive provision applies. Where both statutory 5% cash conditions are satisfied, the business threshold under Section 44AB(a) is Rs. 10 crore instead of Rs. 1 crore.

Is the Section 44AB professional audit threshold Rs. 75 lakh?

No. The general Section 44AB(b) professional tax-audit threshold is Rs. 50 lakh. Rs. 75 lakh is the enhanced eligibility ceiling under Section 44ADA for specified presumptive professional income where the cash-receipt condition is satisfied.

What is the tax audit report due date for AY 2026-27?

The Income Tax Department states 30 September 2026 for the tax audit report for FY 2025-26 / AY 2026-27. Any later CBDT extension should be checked before filing.

Does a statutory audit under another law replace the Section 44AB report?

It avoids a duplicate audit of the same accounts if the statutory conditions are met, but the taxpayer must still furnish the prescribed further tax audit report and particulars. Form 3CA with Form 3CD is used where accounts are audited under another law.

Related provisions on Aap Tax Law

For connected provisions, see Section 44AA - maintenance of accounts, Section 44AD - presumptive business income and Section 44AE - goods carriages.

Note: This article explains the law for general information. Tax audit applicability can depend on the taxpayer's legal status, nature of receipts, presumptive-tax history and other facts.