The Main Event: Your ITR Filing Deadline
Let's start with the date everyone knows. For most individual taxpayers, including salaried employees and pensioners, the due date to file their Income Tax Return (ITR) for the Financial Year (FY) 2025-26 is July 31, 2026. [10, 11] This is the primary
deadline for those filing forms ITR-1 or ITR-2. [10, 11] However, the tax landscape has different deadlines for different categories. For instance, businesses and professionals who do not require an audit often have until August 31, 2026, while those whose accounts must be audited get until October 31, 2026. [10, 11] Missing this deadline leads to penalties and the inability to carry forward certain losses.
Pay As You Earn: The Advance Tax Calendar
If your total tax liability in a financial year is expected to be ₹10,000 or more, you are required to pay advance tax. [3, 9] This 'pay-as-you-earn' system ensures that the tax burden is spread throughout the year instead of being a lump-sum payment at the end. [9] The payments are due in four quarterly instalments. For FY 2026-27, the deadlines are: 15% of your total tax liability by June 15, 2026; 45% by September 15, 2026; 75% by December 15, 2026; and the full 100% by March 15, 2027. [5, 23] Failure to pay on time attracts interest under sections 234B and 234C of the Income Tax Act. [3, 15] However, professionals and businesses opting for the presumptive taxation scheme under sections 44AD and 44ADA have a simpler path: they can pay their entire advance tax in a single instalment by March 15. [9, 15]
For Employers and Businesses: TDS Timelines
Tax Deducted at Source (TDS) is a crucial mechanism for tax collection. If you are an employer or a business making specified payments like salaries, rent, or professional fees, you must deduct tax and deposit it with the government. TDS payments are typically due by the 7th of the following month. [6, 21] For example, TDS deducted in June 2026 must be deposited by July 7, 2026. [12] The one major exception is for tax deducted in March, for which the deadline is extended to April 30. [6] In addition to monthly payments, TDS returns must be filed quarterly. The due dates for these returns are July 31, October 31, January 31, and May 31 for the respective quarters of the financial year. [6, 14]
A Second Chance: Belated and Revised Returns
Missed the July 31st deadline? All is not lost. The Income Tax Act provides a window to file a 'belated return'. For FY 2025-26 (Assessment Year 2026-27), you can file a belated return until December 31, 2026. [2, 4, 8] While this saves you from more severe consequences of non-filing, it comes with a penalty. A late filing fee of up to ₹5,000 is levied under Section 234F (reduced to ₹1,000 if your total income is below ₹5 lakh). [2, 7] Similarly, if you discover an error after filing your original return, you can file a Revised Return. For AY 2026-27, the deadline to revise your return has been extended to March 31, 2027. [11, 18]
The Proof Is in the Pudding: Submitting Investment Proofs
To ensure your employer deducts the correct amount of TDS from your salary, you need to submit proofs of your tax-saving investments. While the final deadline to make these investments is March 31 of the financial year, most employers ask for proofs much earlier. [17, 25] Typically, companies begin collecting these documents between January and March. [19, 26] Submitting these proofs—for investments under Section 80C, rent receipts for HRA, or health insurance premiums for Section 80D—allows your employer to factor in these deductions and adjust your TDS accordingly. [17, 25] If you miss your employer's deadline, don't worry; you can still claim these deductions when you file your ITR and get a refund if excess tax was deducted. [25]
