
Form 140 for July-September 2026, Due 31 October: Checks Before You File the Vendor TDS Return
Form 140 (earlier Form 26Q) for July-September 2026 is due on 31 October 2026. The PAN, challan, payment-code and date checks to run first, plus the ₹200-a-day fee under section 427 and the ₹10,000 to ₹1 lakh penalty under section 461.

