ITR Filing AY 2025-26: Deadline Extended to September 15 — Key Penalties If You Miss It
Missed July 31 ITR filing? CBDT extends last date to Sept 15. Check penalties, Section 234A rules, and refund delays.
ITR Deadline Extension 2025: September 15 New Last Date — Check Interest, Penalty Rules

Relief for taxpayers! The Income Tax Department has extended the ITR filing deadline for the financial year 2024-25 (AY 2025-26) from July 31 to September 15, 2025, for salaried individuals and non-audit taxpayers. The extension by the Central Board of Direct Taxes (CBDT) comes amid recent changes under the new tax regime.
📌 Why Was the ITR Deadline Extended?
The extension follows system updates in ITR forms and filing utilities. According to the CBDT, additional time was necessary to ensure a smooth and glitch-free filing experience. The move also eases pressure on chartered accountants and tax professionals, who faced delays due to late availability of updated filing software.
⚠️ What If You Miss the September 15 Deadline?
♦ Taxpayers can still file a belated or updated return under Section 139(8A).
♦ The updated return window has been extended to 48 months, double the previous 24-month period.
♦ But late filing could cost up to 60–70% more tax liability, depending on your income and dues.
💸 Penalties & Interest Charges for Late Filing
♦ Section 234A: 1% monthly interest on unpaid taxes after the deadline.
♦ Loss Carry Forward Denied: Missed filers can’t carry forward capital or business losses.
♦ Forced New Regime: Late filers automatically shift to the New Tax Regime, losing deductions and exemptions of the Old Regime.
♦ Delayed Refunds: Filing after the deadline will slow down tax refund processing.
📅 Mark Your Calendar
With just over a month left, experts advise filing returns well before September 15, 2025, to avoid penalties, last-minute rush, and technical issues on the portal.
Final Reminder: September 15, 2025, is now the official last date for filing ITR for AY 2025-26.