Securities AIS data often shows gross transaction values, while broker P&L computes gain/loss. The filing position must be based on tax computation with evidence, not raw AIS gross numbers.
Detailed analysis
Why mismatch occurs
AIS may receive transaction-level values from market/reporting entities. Broker P&L may adjust cost, holdings, corporate actions, STT, charges and realised/unrealised classification. The taxpayer must reconcile transaction values to taxable gain/loss.
Practical example
Example
AIS shows equity sales of ₹52 lakh. Broker realised P&L shows short-term gain of ₹1.35 lakh and long-term gain of ₹82,000 after cost. ITR should not report ₹52 lakh as gain. Keep broker capital-gains report, holding statement and reconciliation to AIS gross sales.
Reconciliation file
| Mismatch item | Evidence |
|---|
| Gross sale value | AIS transaction list and broker contract notes. |
| Cost of acquisition | Holding statement and purchase contract notes. |
| Corporate action | Bonus/split/merger adjustment evidence. |
| Intraday/F&O | Segment-wise broker P&L and business/income classification review. |
| Charges/taxes | Broker ledger, STT/charges and tax computation. |
Common mistakes
Avoid these mistakes- Reporting AIS gross sale value as income.
- Ignoring corporate actions.
- Mixing delivery equity with F&O/intraday.
- Not reconciling multiple brokers.
- Not saving contract notes and holding statement.
Validated source note
Validated on 17 June 2026
Based on official AIS FAQ, Income-tax Act, 2025 and Income Tax e-Filing return help pages.
Official sources used
This article is intentionally source-limited to official Income Tax Department / e-Filing material. Source validation date: 17 June 2026. Verify final positions with the latest Income-tax Act, rules, forms, portal utilities and instructions before filing.
FAQs
Why does AIS differ from broker P&L? â–¾
AIS may show transaction values, while broker P&L calculates gain/loss after cost and adjustments.
Should AIS gross sale value be treated as capital gain? â–¾
No. Taxable capital gain requires sale value, cost and classification computation.
What documents should be kept? â–¾
Broker P&L, contract notes, holding statement, AIS download and computation.
What about F&O/intraday? â–¾
They may require separate tax classification review.
Should multiple broker accounts be consolidated? â–¾
Yes. Consolidate before final ITR.