What is Income Tax Audit? Format, Objectives & Turnover Limits

Business may be exciting, but when it comes to taxes, even a small slip can turn into a big headache. And and and…. if you are an Indian business owner, dealing with income tax is another big task!

But you have to stay on the right side of the Income Tax Act to keep your business compliant. And one term that often sends shivers down the spine of many business owners is income tax audit.

This blog will break down everything about income tax audit:

• Who needs it?
• What’s the turnover limit for tax audit?
• Income tax audit due date
• Penalties and more

Let’s jump in.

What is Income Tax Audit?

In simple terms, an income tax audit is going through your books of accounts as per the Income Tax Act, 1961. As companies are subjected to statutory audit (under company law) or costs audit (under cost accounting law), so is it for some businesses and professionals to undergo their accounts audit for tax purposes.

A Chartered Accountant (CA) conducts this audit, reviewing the accounts and confirming that amounts of income, expenses, and deductions are properly reported. The audit also ensures that the taxpayer has complied with all provisions of the income tax law.

CA prepares the results in the prescribed formats, like Form 3CA/3CB and Form 3CD, and further uploads them electronically on the Income Tax portal. This is commonly known as an ITR audit since it directly assists in filing your Income Tax Return (ITR).

Objectives of Tax Audit

A tax audit has more than compliance objectives. The main objectives of tax audit include:

• It’s for proper maintenance of books of accounts and reflecting the actual financial situation of the taxpayer.
• To certify claims for deductions, exemptions, and expenses
• Finding any discrepancies or fraud
• Helping tax authorities to check the accuracy of income tax returns submitted.
• Saving taxpayers and assessing officers’ time by reducing routine checks.

Simply put, a tax audit builds trust and credibility in your financial reporting.

Tax Audit Applicability

Applicability of tax audit is based on the turnover limit of tax audit, and other particular conditions as per the Income Tax Act.

• For Businesses: A tax audit is mandatory if total sales or turnover exceeds INR 1 crore. However, if your cash receipts and cash payments are both limited to 5% or less of total transactions (meaning 95%+ is digital/banking), this threshold jumps to INR 10 crore.
• For Professionals: A tax audit is mandatory if gross receipts exceed INR 50 lakh. However, under Section 44ADA, professionals with receipts up to INR 75 lakh, where cash receipts do not exceed 5% of total gross receipts, i.e., 95%+ through digital/banking channels, can opt for presumptive taxation and are not required to undergo a tax audit, provided they declare income at the prescribed rate.

Under Presumptive Taxation Schemes:

• Section 44AD: Applicable to businesses with a turnover up to INR 2 crore (or INR 3 crore if 95%+ of receipts are digital). If your business declares profits lower than the prescribed rate (8% for cash, 6% for digital) and your total income exceeds the basic exemption limit, a tax audit is mandatory. A tax audit also becomes mandatory if a taxpayer who has opted for Section 44AD opts out of the scheme within the five-year lock-in period, and their total income exceeds the basic exemption limit.
• Section 44ADA: If your receipts are under the INR 50 lakh (or INR 75 lakh digital) threshold but you claim your actual net profits are lower than 50% of your gross receipts, you must maintain formal books of accounts and undergo a mandatory tax audit if your total income exceeds the basic exemption limit.
• Sections 44AE, 44BB, 44BBB: Audit applies in case the actual profits are reported below the presumptive income levels.

Tax audit applicability typically arises when turnover exceeds INR 1 crore for businesses or INR 50 lakh for professionals, subject to specified conditions.

Types of Income Tax Audit

Although there are various forms of income tax audit, the standard audit is done under Section 44AB. The only difference is the form of the audit report that needs to be submitted:

• Form 3CA: This form is for businesses or professions under another law (such as a company under the Companies Act).
• Form 3CB: For those who are not required to undergo any other audit means they do not fall under any other law (standard form).
• Form 3CD: This is a detailed statement of particulars. It is required to be submitted along with the Form 3CA or 3CB always.
• Form 3CE: This applies to non-residents or foreign companies earning royalties or fees for technical services through a permanent establishment or fixed place of profession in India (under Section 44DA).

In short, audit is one, but the reporting format is different for different types of businesses and individuals. All these forms must be filed electronically by the Chartered Accountant on the Income Tax portal. Once uploaded, the taxpayer needs to log in and approve the report.

To make the process easier and more automated, a few CAs use income tax software. Most of the details are pre-filled, which saves time.

Income Tax Audit Procedure

The income tax audit process is fairly organized:

• Appointment of a Chartered Accountant: Only a practicing CA is allowed to perform the audit.
• Accounts Books Review: CA reviews ledgers, vouchers, purchase/sales, expenses claim, etc.
• Audit Report Preparation: CA prepares an audit report in the relevant form (3CA/3CB/3CD) based on the findings.
• Online Submission: CA uploads the report electronically on the income tax portal using his or her login credentials.
• Taxpayer Approval: The taxpayer should acknowledge the uploaded audit report using his/her own e-filing account.

This is done to provide accountability and transparency, which leaves an electronic trail of compliance.

Tax Audit Due Date

The standard due date for tax audit is 30th September of the assessment year. The ITR filing deadline for audit cases is 31st October. For FY 2025-26 (AY 2026-27), the tax audit report must be filed by September 30, 2026, and the ITR by October 31, 2026.

In the case of transfer pricing (international transactions), the due date for filing the ITR is 30th November of the assessment year.

Penalty for Non-Compliance

According to Section 271B of the Income Tax Act, you can be penalized in case you do not have your accounts audited and submitted on time.

The penalty under Section 271B is 0.5% of turnover or INR 1,50,000, whichever is lower.

But in case you can show a reasonable cause (natural calamity, auditor resignation, loss of accounts through accident, or any other valid cause), the penalty can be waived.

Final Thoughts

Income tax audit might seem an unnecessary burden, but it is very crucial to maintain your financial records properly. Knowing everything from income tax audit rules to applicability and due date can help you avoid penalties and maintain a good relationship with tax authorities.

Overall, income tax audit is not only about compliance, but also about maintaining transparency in financial records, thus creating a credible financial base for your business.

FAQs on Income Tax Audit