Tax Audit Under Income Tax: What Is It, Who Needs It & What Is the Turnover Limit?

Tax Audit is an important compliance requirement under the Income-tax law for certain businesses and professionals. It is conducted by a Chartered Accountant (CA) to examine the books of accounts and report specified financial and tax-related particulars to the Income Tax Department.

But the most common question is:

“My turnover is ₹1 crore / ₹5 crore / ₹10 crore. Is Tax Audit applicable to me?”

The answer depends not only on turnover but also on the nature of business/profession, cash transactions and whether presumptive taxation provisions apply.

What is Tax Audit?

Tax Audit means an audit of the books of accounts of a taxpayer by a Chartered Accountant as prescribed under Section 44AB of the Income-tax Act, 1961.

For FY 2025-26 (AY 2026-27), the existing provisions of the Income-tax Act, 1961 continue to apply for tax-audit reporting. The Income Tax Department has clarified that the tax-audit thresholds remain unchanged under the new Income-tax Act, 2025 as well. (Income Tax Department)

The purpose of a tax audit is to ensure proper reporting of income, expenses, deductions, depreciation, tax compliances and other particulars required under the Income-tax law.

Tax Audit Limit for Business

Generally, tax audit becomes applicable where the sales, turnover or gross receipts from business exceed ₹1 crore in a financial year.

However, there is an important relaxation.

Turnover up to ₹10 Crore

The tax-audit threshold can be increased from ₹1 crore to ₹10 crore where:

• Cash receipts do not exceed 5% of total receipts, and
• Cash payments do not exceed 5% of total payments.

Therefore:

Business Turnover ≤ ₹10 Crore + Cash Receipts ≤ 5% + Cash Payments ≤ 5% → Generally, Tax Audit Not Required solely because of turnover.

If either of the specified cash conditions is not satisfied, the normal ₹1 crore threshold becomes relevant. (Income Tax Department)

Example

Suppose a business has:

Turnover: ₹6 crore
Cash receipts: 2%
Cash payments: 3%

Since both cash conditions are within 5%, the enhanced ₹10 crore threshold may apply.

Therefore, turnover of ₹6 crore by itself would not make tax audit mandatory solely under the turnover criterion.

Tax Audit Limit for Professionals

For professionals covered by the relevant provisions, tax audit is generally applicable when gross receipts exceed ₹50 lakh.

There is also a higher presumptive-taxation threshold of ₹75 lakh under Section 44ADA where the specified cash-receipt condition is satisfied. Therefore, professionals should examine both the gross-receipt level and the applicable presumptive-taxation provisions before concluding whether audit is required. (Income Tax Department)

Examples of professions may include:

• Chartered Accountants
• Lawyers
• Doctors
• Architects
• Engineers
• Interior designers
• Technical consultants
• Other specified professionals

What About Presumptive Taxation?

Tax audit applicability is not determined only by turnover.

Special provisions can apply where a taxpayer:

• Opts for presumptive taxation;
• Declares income below the prescribed presumptive percentage;
• Has previously opted for presumptive taxation and subsequently declares income in a manner triggering the audit provisions; or
• Falls under other specific audit conditions.

Therefore, a taxpayer with turnover below ₹1 crore can also potentially have a tax-audit requirement depending upon the circumstances.

Tax Audit Is Different From Statutory Audit

A common misconception is that Tax Audit and Statutory Audit are the same thing.

They are not.

Tax Audit

Conducted under the Income-tax law to report specified tax-related particulars.

Statutory Audit

Conducted under the applicable corporate, LLP or other governing law.

For example, a company may be required to have a statutory audit even when its turnover is below the tax-audit threshold.

Therefore, exemption from tax audit does not necessarily mean exemption from other applicable audits.

Why Is Tax Audit Important?

Tax audit helps in:

✅ Proper verification of books of accounts
✅ Reporting of income and expenses
✅ Verification of tax-related particulars
✅ Identification of accounting and compliance errors
✅ Proper disclosure of specified transactions
✅ Better tax compliance and documentation
✅ Reducing the risk of incorrect reporting

A proper tax-audit review can also help identify issues relating to GST, TDS, depreciation, expenses, loans, cash transactions, related-party transactions and other tax disclosures, wherever relevant.

What Documents Are Generally Required?

Depending on the nature of business or profession, the CA may require:

• Books of accounts
• Trial balance
• Profit & Loss Account
• Balance Sheet
• Bank statements
• Sales and purchase details
• GST returns and reconciliation
• TDS returns
• Fixed asset/depreciation details
• Loan and interest details
• Details of cash receipts and payments
• Details of specified expenses and transactions
• Previous year’s financial statements and tax-audit report, where applicable

The exact requirements may vary from taxpayer to taxpayer.

Important Takeaway

Don’t decide Tax Audit applicability only by looking at turnover.

Before concluding whether a tax audit is applicable, check:

1. Nature of activity – Business or Profession
2. Turnover / Gross Receipts
3. Cash Receipts
4. Cash Payments
5. Presumptive Taxation provisions
6. Income actually declared
7. Previous presumptive-taxation history, wherever relevant
8. Other specific provisions of the Income-tax law

For FY 2025-26 (AY 2026-27), the Income Tax Department has confirmed that tax-audit reports continue to use Form 3CA/3CB and Form 3CD, with the tax-audit report due date being 30 September 2026. (Income Tax Department)

Need Help With Tax Audit Applicability?

If you are unsure whether your business or profession requires a Tax Audit, it is advisable to get the applicability checked before filing your Income Tax Return.

A N Bobade & Associates
Chartered Accountants

Tax Audit | Income Tax | GST | Accounting | Audit & Assurance | Tax Compliance

📌 Professional Tax & Compliance Guidance for Businesses and Professionals

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