The government has extended the ITR filing deadline for FY 2024–25 to September 15, 2025, for non-auditable accounts. Taxpayers should prepare key documents early, including: Form 16 (from employer), TDS certificates (Forms 16A, 16B, 16C), capital gains statements, and tax records like AIS, TIS, and Form 26AS. Other essentials include details of foreign income/unlisted shares, interest certificates, full-year bank statements, and proof of tax-saving investments (e.g., PPF, LIC, 80C/80D). PAN, Aadhaar, and bank details are also mandatory. These ensure accurate reporting and prevent mismatches with the income tax department’s data during return filing.