LastminuteITR
← All articles

Tax Audit Rules for F&O Trading Explained

Do you need a CA for a tax audit on your F&O trades? We break down the turnover limits and loss conditions that trigger a mandatory tax audit.

7 min read · 2026-06-15

The Dreaded Tax Audit

For F&O traders, the biggest fear at tax time isn't the tax itself—it's the Tax Audit. A tax audit under Section 44AB means a Chartered Accountant must examine your trading books, certify them, and file an audit report before you can file your ITR.

When do you actually need one?

Quick stat: The base tax-audit turnover limit is Rs 1 crore, but it rises to Rs 10 crore when 95% or more of receipts and payments are digital, which covers nearly all F&O traders (Source: Section 44AB, Income Tax Act).

The ₹10 Crore Turnover Limit

The primary trigger for a tax audit is your Trading Turnover. - The base limit for a tax audit is ₹1 Crore. - However, if 95% or more of your business receipts and payments are digital (which is true for 100% of F&O trading), the audit limit is increased to ₹10 Crore.

If your calculated F&O turnover is less than ₹10 Crore, you generally do not need a tax audit, even if you have incurred losses.

The "Loss" Confusion (Section 44AD)

There is a lot of outdated information online saying "if you have F&O losses, you must get an audit." This is mostly false today.

This confusion stems from Section 44AD (presumptive taxation). If you opt into 44AD, declare profits at 6%, and then in a subsequent year declare less than 6% profit (or a loss), an audit is triggered.

However, most tax experts agree that F&O trading is not suitable for Section 44AD. If you treat F&O as normal business income (maintaining a basic P&L), you only need an audit if your turnover crosses ₹10 Crore.

How to Calculate F&O Turnover

Turnover in F&O is not the total value of the contracts you bought. It is calculated as: Turnover = Sum of Absolute Profits + Sum of Absolute Losses + Premium received on sale of options

Example: You make a profit of ₹50,000 on one trade and a loss of ₹40,000 on another. Your net profit is ₹10,000, but your turnover is ₹90,000.

Check your status with LastMinute ITR Don't pay for an audit you don't need. Upload your broker statement to LastMinute ITR. We will help you calculate your exact absolute turnover based on ICAI guidelines, so you know for sure if you are under the ₹10 Crore safe limit before you file on the government portal.

Start with LastMinute ITR · import your broker statement · fix an AIS mismatch.

What you should do

Common mistake

Believing every F&O loss needs an audit. That myth comes from Section 44AD. If you report F&O as plain business income, a loss alone does not force an audit; turnover does.

Related guides

Tax Audit Rules for F&O Trading Explained · LastMinute ITR