This comprehensive guide explains Form 10B, an essential audit report for charitable/religious trusts, educational institutions, and hospitals under the Income Tax Act (2025). It details who needs to file it (especially those with over ₹5 crore income, foreign contributions, or income applied outside India), its key contents, the step-by-step online filing process, and the crucial September 30, 2025 due date for AY 2025-26. The synopsis also highlights the severe consequences of non-compliance, emphasizing the report's vital role in maintaining tax-exempt status and ensuring financial transparency.