ITR Filing 2025: Last 23 days left to file income tax return for FY25; here’s a list of documents you need to file return

There are only 23 days left to file the Income Tax Return (ITR) for the Financial Year 2025. The last extended date to file a return is September 2025. The due date to file ITR for non-audit taxpayers is generally 31st July of the relevant assessment year, if not extended. However, in May 2025, the Central Board of Direct Taxes (CBDT) extended the ITR deadline to 15th September 2025 from 31st July. So, if you haven’t filed your ITR yet, don’t worry, you still have more than three weeks to file your return.

Here’s a list of documents you need while filing your ITR for FY 2024-25 (AY 2025-26).

While filing an ITR, you should gather all your relevant documents in advance. These documents are:

1) Form 16

Form 16 is a TDS certificate that salaried taxpayers need to file their income tax return (ITR). It’s an important document that proves that the government has received the tax deducted by your employer. Form 16 has two parts- A and B. 

Form 16 Part A

Details of the TDS that is collected and deposited every quarter, as well as the employer’s PAN and TAN, are provided in Part A of Form 16.

Form 16 Part B

Part B of Form 16 is an annexure to Part A. Employers are required to provide Part B for their employees, which includes information on the wage breakdown and authorised deductions under Chapter VI-A.  

2) Capital gains statement

Reporting capital gains is important while filing your ITR. If you have sold any stocks, mutual funds, or other assets, your broker or investment firm should provide you with the capital gains statement. It assists you in determining whether gains are long-term or short-term.

3) Bank Statements/interest certificates

Taxpayers also need to keep their bank statements and interest certificates handy before filing their ITR. Banks issue these documents to account holders. It is required in ITR filing because you need to pay tax on your bank interest also after a certain limit.

4) PAN, Aadhaar details

Before submitting your tax return, make sure you have your PAN and Aadhaar handy. Citing your Aadhaar number is required, and your PAN is necessary for filing. 

5) AIS, TIS, and Form 26AS

26AS or AIS: Form 26AS and AIS are important documents to file an ITR. Form AIS contains information on taxes deposited by the taxpayer, including advance tax and self-assessment tax, while Form 26AS describes the deduction of TCS and TDS.

TIS: The amount that banks and registrars provide to the income tax department is known as TIS (Taxpayer Information Summary). The value that is left over after accounting for processing value and taxpayer feedback is known as derived value. This number will be used to prefill the ITR if applicable.