Tax Audit u/s 44AB for F&O: Turnover Thresholds, Profit Ratio and Books of Accounts
For FY 2025-26, a Section 44AB tax audit is mandatory when F&O turnover exceeds ₹1 crore — or ₹10 crore if cash receipts and payments are each 5% or less of totals, which fully digital F&O traders usually meet. A low declared profit ratio does not remove the audit obligation, and books of account are required.
Harun Raaj
Chartered Accountant · Harun Raaj & Associates
Short answer: Under s.44AB ITA 1961, a tax audit is mandatory when business turnover exceeds ₹1 crore (clause (a)); the threshold rises to ₹10 crore only where cash receipts are ≤5% of total receipts and cash payments are ≤5% of total payments — a condition nearly every digital F&O trader meets. Turnover means the ICAI absolute-sum figure, never contract value. A thin profit ratio does not waive the audit: the presumptive opt-out rule removes the ₹10 crore relaxation (and can compel an audit) for anyone eligible for s.44AD who declares less than the deemed profit while income exceeds the exemption limit. The audit report is due by 30 September; the ITR by 31 October.
Changed FY 2025-26: The ₹10 crore digital threshold — inserted at ₹5 crore by Finance (No.2) Act 2019 (w.e.f. AY 2020-21) and raised to ₹10 crore by Finance Act 2021 (w.e.f. AY 2022-23) — is still the operative limit for cashless F&O traders in FY 2025-26. The ₹1 crore standard limit applies to anyone failing the 5% cash test.
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The thresholds in one table
The ₹10 crore condition: the 5% cash test
The elevated threshold applies only when both conditions hold for the year:
- Aggregate cash receipts ≤ 5% of total receipts; and
- Aggregate cash payments ≤ 5% of total payments.
F&O through a SEBI-registered broker is almost entirely electronic: margins, premiums and settlements move through the exchange and banking system. A trader with no cash deposits into the trading account and no cash withdrawals above 5% comfortably meets the test and gets the ₹10 crore limit. But a single large cash deposit from an unexplained source can drop you back to the ₹1 crore test — with audit consequences.
The profit-ratio trap (presumptive opt-out rule)
The ₹10 crore relaxation does not apply to a person who is eligible for the presumptive scheme under s.44AD but declares a profit lower than the deemed profit (8% of turnover, or 6% for digital receipts) while total income exceeds the basic exemption limit. That person must get an audit even below ₹10 crore.
The nuance for F&O: F&O traders cannot use s.44AD at all (see F&O Traders Cannot Use Section 44AD), so this opt-out rule does not bite them through 44AD. But the same principle surfaces through the back door: an F&O trader who declares a profit that is a tiny fraction of turnover (say 1%) invites scrutiny of whether the declared income is real, and the Assessing Officer can reject the books and apply deemed-profit logic. on how strictly the presumptive opt-out rule applies to pure F&O assessees.
Practical takeaway: the audit trigger for an F&O trader is turnover, not profit. Turnover above ₹1 crore (cash test failed) or ₹10 crore (cash test met) → audit. Low profit alone does not waive it.
Books of account you must keep
Whether or not you cross the audit threshold, presumptive shortcuts are unavailable, so maintain:
- Trade ledger — trade-wise P&L, dates, instrument, quantity, price, and settlement;
- Contract notes from the broker (the primary evidence);
- Bank statements for margin, premium and settlement flows;
- Broker monthly P&L / tax reports; and
- A simple P&L and balance sheet for the year (required in ITR-3).
If audit applies, a CA audits these and files Form 3CB + Form 3CD on the portal.
Due dates
Missing the 30 September audit-report deadline blocks the ITR and can trigger fees under s.234F and interest.
Worked example: Vikram's thin margin
Persona: Vikram, a full-time F&O trader, FY 2025-26. ICAI turnover ₹95,00,000; net F&O profit ₹4,75,000 (5% of turnover). All transactions digital; no cash receipts or payments beyond negligible amounts.
Step 1 — Threshold test: Turnover ₹95 lakh < ₹1 crore. Cash test: met (fully digital). → No audit on turnover grounds.
Step 2 — Profit-ratio check: Vikram is not eligible for s.44AD (F&O excluded), so the presumptive opt-out rule does not directly apply. But a 5% profit ratio on ₹95 lakh turnover is low; the AO could examine whether expenses are inflated or trades are being churned. His trade ledger should justify the margin.
Step 3 — Books: Trade ledger + contract notes + bank statements, kept in order. No audit this year — but if turnover crosses ₹1 crore next year with any cash above 5%, audit triggers automatically.
Step 4 — Loss-position variant: If Vikram had a net loss of ₹2,00,000 on ₹95 lakh turnover, he still files ITR-3 on time to carry the loss forward under s.72 — no audit, but the deadline is unforgiving.
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Frequently Asked Questions
1. Is the tax audit limit for F&O ₹1 crore or ₹10 crore?
₹10 crore if your cash receipts and payments are each ≤5% of totals — which applies to most fully digital F&O traders. Otherwise the limit is ₹1 crore. The limit is based on ICAI-method turnover, never contract value.
2. I made a net profit of only ₹2 lakh on ₹70 lakh turnover. Do I need an audit?
No audit at ₹70 lakh turnover (below ₹1 crore), provided you pass the cash test. The low profit ratio does not by itself trigger s.44AB for an F&O trader — but keep the trade ledger ready, because a thin margin invites scrutiny.
3. What books must an F&O trader maintain for a tax audit?
A trade ledger, contract notes, bank statements, broker P&L reports, and a simple annual P&L and balance sheet. For a statutory audit, the CA verifies these and files Form 3CB + 3CD.
4. What is the due date for the tax audit report?
30 September of the assessment year. The income tax return carrying the audit report is due by 31 October. The report itself must be furnished on the portal by 30 September.
5. Does a cash deposit into my trading account break the ₹10 crore threshold?
Possibly. If aggregate cash receipts exceed 5% of total receipts for the year, the ₹10 crore relaxation is lost and the ₹1 crore threshold applies. A single large cash deposit can push you over.
6. Can the AO demand an audit even if my turnover is below the threshold?
Yes, in specific cases — for example, if your declared F&O profit is implausibly low relative to turnover, or under the presumptive opt-out rule where it applies. This is a scrutiny-style call, not an automatic trigger. for your specific facts.
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Check your threshold before 30 September
Use the F&O Turnover Calculator to compute ICAI turnover, test the ₹1 crore vs ₹10 crore threshold against your cash flows, and get a written summary for your CA before the 30 September audit-report deadline.
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Last verified: 2026-08-08.
Sources: Section 44AB ITA 1961 (incl. proviso inserted by Finance (No.2) Act 2019 (inserted at ₹5cr) as expanded by Finance Act 2021 (raised to ₹10cr)); Section 44AD ITA 1961; ICAI Guidance Note on Tax Audit (2023 ed.); Income-tax Rules, 1962 (Form 3CB/3CD).
Reviewer: pending CA sign-off. Draft status — do not publish before CA review.: application of the presumptive opt-out rule to pure F&O assessees.
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