ITR Filing (AY 2026-27)due 31 July 2026GSTR-3Bdue Every 20thGSTR-1due Every 11thAdvance Tax — Q1 (FY 2026-27)due 15 June 2026TDS Returns — Q4 (FY 2025-26)due 31 May 2026ITR Filing (AY 2026-27)due 31 July 2026GSTR-3Bdue Every 20thGSTR-1due Every 11thAdvance Tax — Q1 (FY 2026-27)due 15 June 2026TDS Returns — Q4 (FY 2025-26)due 31 May 2026
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