You need the following details and documents for e-filing your income tax returns:Details of your Aadhaar card, PAN card number, and proof of your current addressDetails of all the bank accounts under your name for the particular financial yearProof of income such as salary slip, details of income from investments such as interest on the savings bank account, FDs, etc.All the deductions claimed under section 80 or chapter VI-A of the Income Tax ActDetails of tax payments like advance tax payments and TDSFor your convenience, keep all the necessary documents ready. Calculate advance tax and use the TDS calculator for ITAX calculation.