New Delhi, June 11 -- Futures and options traders filing income-tax returns this season face tighter disclosure rules, with the revised ITR-3 form requiring separate reporting of derivatives turnover and profits-an adjustment that sharpens how the tax department tracks trading activity and compares it with third-party data.

The change, aimed at improving data matching under the Annual Information Statement (AIS), marks a shift from earlier practice when F&O trading results were bundled with broader business receipts.

Tax experts say the separation increases transparency and strengthens audit trails, making turnover calculations, and errors in them, more visible to the tax authorities.

Officials and experts say the revised format is int...