A record 7.8 crore income-tax returns have been filed for FY26/AY27 till 31 August 2026, marking a significant milestone for the Income Tax Department. The Income Tax Department announced this achievement, stating "A record 7.8 Crore+ ITRs have been filed for AY 2026-27 as on August 31, 2026." Of these returns, more than 5.71 crore ITRs have been processed according to the department. The August 31 deadline formed part of the revised return-filing schedule introduced through amendments to the Income-tax Act, 1961 under the Finance Act, 2026. Under this framework, non-audit business and professional taxpayers had until August 31 to file their returns, while other taxpayers not in specified categories had until July 31. For FY26/AY27, companies and taxpayers whose accounts are required to be audited face a 31 October 2026 deadline, while taxpayers covered by transfer-pricing provisions under Section 92E have until 30 November 2026.
Taxpayers who missed the 31 August 2026 deadline for filing income tax returns for AY 2026-27 can still file a belated return until 31 December 2026 under Section 139(4) of the Income Tax Act, 1961. Late filing attracts significant penalties including a late fee under Section 234F of up to ₹5,000, or ₹1,000 if total income is below ₹5 lakh. Additionally, there is interest at 1 percent per month on unpaid tax under Sections 234A, 234B, and 234C depending on the outstanding tax liability. The most critical consequence is the loss of ability to carry forward business and capital losses to future years. A belated return also forces calculation into the new tax regime by default, removing planned deductions under the old regime. Late filing by entities that are required to undergo audit may result in fees up to ₹5,000, interest on unpaid taxes, and the inability to carry forward business or capital losses.
Missing the ITR-3 or ITR-4 deadline can result in significant tax regime implications beyond the basic late fee. Taxpayers who want to opt out of the default new tax regime must furnish Form 10-IEA by the due date under Section 139(1). As per Business Standard, Mrinal Mehta from Bombay Chartered Accountants' Society explains that taxpayers often view August 31 simply as a date after which they will have to pay a ₹5,000 fee, without realizing it's also an important election deadline. For example, a professional earning ₹30 lakh with eligible deductions of ₹9 lakh could face an additional tax cost of roughly ₹39,000 by losing the old regime option. However, the impact varies significantly based on income levels - for a professional earning ₹16 lakh with ₹4.75 lakh of eligible deductions, the new regime could be cheaper by about ₹31,200. Sudhir Kaushik from Taxspanner notes that the correct comparison should be made before filing rather than assuming one regime is always better.
Missing the deadline can have severe consequences for business losses and their carry-forward potential. As per Swati Godbole from K J Somaiya Institute of Management, a taxpayer filing a belated return may lose the ability to carry forward certain business losses. For instance, if a business suffers a ₹2 lakh trading loss but files the return late, that loss may not be available to offset future profits, increasing tax liability in later years. Mehta provides a larger illustration: an F&O trader with an ₹8 lakh eligible business loss could potentially use that loss to reduce tax on future profits, but if the return is filed late and the loss becomes ineligible for carry-forward, the future tax shelter could be worth around ₹2.5 lakh. However, unabsorbed depreciation and loss from house property can continue to receive carry-forward treatment even where a return is belated, subject to applicable provisions.
Tax experts strongly recommend against treating December 31, 2026 as a new filing deadline, emphasizing it's merely a backstop rather than a target. Mihir Tanna from SK Patodia & Associate LLP warns that taxpayers sometimes assume they have until October 31, only to discover their deadline was actually August 31. Experts recommend that taxpayers who missed August 31 should confirm the applicable deadline by checking tax-audit and transfer-pricing applicability, reconcile records matching AIS, TIS, Form 26AS, TDS/TCS, bank statements, and GST data, compare tax regimes to assess the impact of losing old-regime options, calculate and pay dues including applicable interest and late-filing fees, and file the belated return promptly without waiting until December 31. Sandeep Bhalla from Dhruva Advisors advises taxpayers to reconcile their return with Annual Information Statement (AIS), Form 26AS, and other financial records, calculate liability, and file at the earliest rather than simply treating December 31 as the target.
