For the financial year 2017-18, taxpayers filing online ITR using form ITR-1 are required to give a break-up of their gross salary income and income for one house property. To fulfill this requirement taxpayers need some other documents along with the Form-16.

If you are a salaried employee, you must have got your Form-16 for the financial year 2017-18 by now. Form-16 is the most important document you need to file income tax return (ITR) online. Form-16 is a certificate of tax deducted at source (TDS) issued by an employer to its employees. For the financial year 2017-18, taxpayers filing online ITR using form ITR-1 are required to give a break-up of their gross salary income and income for one house property. To fulfill this requirement taxpayers need some other documents along with the Form-16. Here are they:

Form-26ASThis is a consolidated annual statement issued by the income tax department which contains details of all tax deducted at source against a PAN. You can view your Form 26AS on the income tax e-filing website. Before filing online ITR you need to ensure that the details of TDS mentioned against your employer's PAN match with the details mentioned in the Form-16 issued by your employer. If there is any discrepancy, then you should report it with your employer immediately.

Salary slipKeep your salary slips with you while filing online ITR. The new ITR-1 form requires details of allowances not exempt from tax, profit in lieu of salary and value of perquisites to be mentioned in the form. You can get these details from your salary slip.

TDS certificate from banksInterest received on savings bank account, fixed deposit and recurring account are taxable. Banks deduct TDS on interest earned on fixed deposits if your annual interest received is more than Rs 10,000. You need to collect TDS certificates from you banks. While filing ITR, you need to mention details of interest received from all your savings account, post office account and on fixed deposits. Under section 80TTA of Income Tax 1961, interest up to Rs 10,000 received on savings bank account are exempt from tax.

Home loan/education loan interest certificate from banksIf you have a home loan or an education loan from any bank make sure that you collect interest certificate from the banks. Interest paid on home loan and education loan qualify for tax deduction/exemption. The interest certificate contains breakup of interest paid and capital repaid during a financial year.

Investment proofs
Investments up to Rs 1.5 lakh qualify for tax benefit under section 80C. To claim these benefits you need to carry proof of investments you have done under various sections of I-T act.

Capital gains
If you have sold some property, shares or mutual fund units during the financial year and have earned capital gains, you need to mention those in your ITR. Again capital gains need to be broken into short-term and long-term as tax treatment for them are different.

Aadhaar number
Providing Aadhaar number is mandatory for ITR filing. According to section 139AA of Income-tax Act, taxpayers are required to mention their Aadhaar number while filing ITR. If you have applied for Aadhaar and have not got it yet, then you would be required to provide enrolment ID for Aadhaar.