The Income Tax Department has introduced a major overhaul in form numbering under the Income Tax Rules 2026, replacing several commonly used forms that were earlier prescribed under the Income Tax Act 1961 and IT Rules 1962. The changes affect tax audit reports, PAN applications, TDS returns, charitable trust filings, foreign remittances, and appellate forms, among others. According to the updated list of frequently used forms, nearly 30 commonly used forms have been assigned new numbers, requiring taxpayers, chartered accountants, companies and trusts to use the revised formats going forward.