Do You Need a Tax Audit for F&O Trading?
The Question Most F&O Traders Get Wrong
Most retail traders assume a tax audit is only for large businesses. For F&O trading, the rules are different — and ignoring them can mean penalties under Section 271B of the Income Tax Act.
When is a Tax Audit Mandatory?
A tax audit under Section 44AB is required if:
- Your F&O turnover exceeds ₹10 crore in a financial year, OR
- Your F&O turnover is below ₹10 crore but your net profit is less than 6% of turnover
The second condition catches most retail traders. F&O is a loss-making activity for the majority — which means even modest turnover can trigger a mandatory audit.
A Practical Example
Say you traded F&O this year with:
- Total F&O turnover: ₹45 lakhs
- Net loss: ₹2.2 lakhs
Your profit is negative — clearly less than 6% of turnover. A tax audit is mandatory.
Now say you had:
- Total F&O turnover: ₹45 lakhs
- Net profit: ₹3.5 lakhs (= 7.8% of turnover)
You are above the 6% threshold. No audit required.
What Does a Tax Audit Involve?
A Chartered Accountant audits your books and files Form 3CB + 3CD along with your ITR-3. The deadline is typically 30 September of the assessment year (vs 31 July for non-audit cases).
Missing the audit when it is required attracts a penalty of 0.5% of turnover, up to ₹1.5 lakhs.
How to Know for Sure
You need two numbers: your F&O turnover and your net F&O profit/loss. Both are calculated from your contract notes — not just your broker's P&L statement, which often uses a different methodology.
Aankda's F&O Tax Calculator computes both automatically from your Zerodha contract note and tells you directly whether you cross the audit threshold.