Documents and records needed for timely ITR filing in India

Before filing, gather Form 26AS, AIS, TIS, Form 16, Form 16A, bank statements and all tax‑payment challans. Business owners should also keep sales‑purchase registers, profit‑and‑loss accounts, balance sheets, GST returns and invoices. Investors need brokerage statements, contract notes, demat statements and capital‑gain calculations. Property owners must retain rent agreements, municipal tax receipts, ownership documents and home‑loan interest certificates. Having these documents at hand prevents last‑minute scrambling and reduces the risk of errors.