This guide explains the updated Guidance Note on Tax Audit under Section 44AB of the Income-tax Act, 1961, for the Assessment Year 2025-26 (Financial Year 2024-25). It clarifies who needs a tax audit, points out key changes in Form 3CD, including new clauses for digital transactions, MSME reporting, and buybacks. It also outlines the audit process, lists important due dates, and details the penalties for non-compliance. The guide offers best practices for taxpayers to help ensure smooth audits and strong tax compliance in India.