Turnover Limit for Tax Audit Under Section 44AB: Who Needs an Audit, Due Dates and Penalty

Whether your business needs a tax audit is one of the first compliance questions to settle each year. It decides your ITR due date, whether you must hire a chartered accountant to certify your books, and whether a penalty is at stake.

The answer depends on three things: whether you run a business or profession, your turnover or gross receipts, and how much of your money moves in cash. This guide sets out every limit with examples.

Quick answer: Under Section 44AB, a tax audit is required if business turnover exceeds ₹1 crore. The limit rises to ₹10 crore if cash receipts and cash payments are each no more than 5% of the total. For professionals, the limit is ₹50 lakh of gross receipts. Separate rules apply to taxpayers who opt out of presumptive taxation under Sections 44AD and 44ADA.

The Income-tax Act, 2025 replaced the 1961 Act from 1 April 2026 and renumbers the audit provision. The thresholds below apply to FY 2025-26 (AY 2026-27), audited in 2026. Check the corresponding section of the 2025 Act for FY 2026-27 onwards.

Tax Audit Limit Under Section 44AB

The ₹10 crore limit: how the 5% test works

Both conditions must be met:

1. Cash receipts (including receipts by bearer cheque) ≤ 5% of total receipts.
2. Cash payments (including payments by bearer cheque) ≤ 5% of total payments.

Receipts and payments through account-payee cheques, bank transfers, UPI, cards and other electronic modes count as non-cash.

Example: A Surat textile trader with turnover of ₹6 crore receives ₹20 lakh in cash (3.3%) and pays ₹15 lakh in cash (2.5%). Both are below 5%, so no tax audit is required, as turnover is under ₹10 crore. If cash receipts were ₹40 lakh (6.7%), the ₹1 crore limit would apply and an audit would be compulsory.

Tax Audit Limit for Professionals

Professionals listed under Section 44AA (doctors, lawyers, chartered accountants, engineers, architects, interior decorators, technical consultants, film artists and others) need an audit when gross receipts exceed ₹50 lakh.

How this interacts with presumptive taxation (44ADA)

Under Section 44ADA, eligible professionals can declare 50% of gross receipts as income without maintaining detailed books. The 44ADA limit is:

• ₹50 lakh, or
• ₹75 lakh if cash receipts are no more than 5% of total receipts.

A professional with ₹65 lakh receipts (mostly digital) who opts for 44ADA and declares at least 50% profit does not need an audit, even though receipts exceed ₹50 lakh.

Business Under Presumptive Scheme (44AD)

Section 44AD lets eligible small businesses declare 8% of turnover as profit (6% for digital receipts) with a turnover limit of:

• ₹2 crore, or
• ₹3 crore if cash receipts are no more than 5%.

When a 44AD business needs an audit:

• It declares profit lower than the presumptive rate and its total income exceeds the basic exemption limit.
• It opts out of 44AD and, in any of the next five years, its income exceeds the basic exemption limit.

Tax Audit Due Date

The CBDT sometimes extends these dates by notification or circular. In 2025, for example, the audit report date for AY 2025-26 was extended. Check for any 2026 extension on the Income Tax portal. See our coverage of the tax audit deadline extension.

Form 3CA, 3CB and 3CD

The CA uploads the report on the e-filing portal, and the taxpayer must accept it from their login before the due date.

Penalty for Not Getting Tax Audit (Section 271B)

If you fail to get accounts audited or fail to furnish the audit report, the penalty is the lower of:

1. 0.5% of turnover or gross receipts, or
2. ₹1,50,000.

No penalty is levied if you prove a reasonable cause under Section 273B, such as the death or physical inability of the partner in charge, natural calamity, or loss of records beyond your control.

Example: A firm with ₹2.4 crore turnover misses the audit. 0.5% of ₹2.4 crore is ₹1,20,000, which is lower than ₹1,50,000, so the maximum penalty is ₹1,20,000.

Common Mistakes

Counting only taxable sales. Turnover includes all business sales, including exempt sales.

Ignoring cash payments in the 5% test. Both receipts and payments must stay within 5%.

Assuming a presumptive taxpayer never needs an audit. Declaring lower profit with income above the exemption limit triggers an audit.

Not accepting the CA's uploaded report. The report is treated as filed only when the taxpayer accepts it.

Frequently Asked Questions

1. What is the turnover limit for tax audit? ₹1 crore for businesses, ₹10 crore if cash receipts and payments are each within 5%, and ₹50 lakh gross receipts for professionals.

2. Is a tax audit required if turnover is below ₹1 crore? Usually not, unless you are a presumptive-scheme taxpayer declaring lower profits with income above the basic exemption limit, or have opted out of 44AD within the last five years.

3. What is the tax audit limit for doctors and lawyers? ₹50 lakh of gross receipts, unless they opt for Section 44ADA (limit ₹50 lakh, or ₹75 lakh with cash receipts within 5%) and declare at least 50% profit.

4. What is the due date for the tax audit report for AY 2026-27? 30 September 2026, unless extended by CBDT.

5. What is the penalty for not getting a tax audit? 0.5% of turnover or ₹1.5 lakh, whichever is lower, under Section 271B.

6. What is the difference between Form 3CA and 3CB? 3CA is used when accounts are audited under another law; 3CB when they are not. Both are filed with Form 3CD.