Following are the basic documents mandatory to file an ITR in India:
PAN (Permanent Account Number) Aadhar Number Form 26AS Bank Account Details Challan of any advance tax or self-assessment tax (if paid during the year) Details of the original return (if filing a revised return)
Form 16 Salary Slips (If form 16 is not available) Pension Statement / Passbook
Property Address Rent Agreement Co-ownership details in case of co-owned property Municipal Tax Receipts Form 16A if TDS is deducted on rental income Home loan repayment certificate/ Interest Certificate from the bank Pre-Construction Interest Details
Balance Sheet and Profit & Loss Statement Bank Account Statement/ Passbook Supporting documents for expenses incurred Cash Register Any other documents required to maintain the books of accounts of the business & profession Audit Report in case the profit from the business is less than 8% of the Total Turnover.