When you sit down to file your return, keep certain key documents at hand, including the Form 16 issued by your employer, bank statements to know the interest income, records of investments and donations made and a copy of returns filed last year. After Selecting Income tax return ITR 1, now to file Itr 1 online for AY 2019-20, you need to select the appropriate assessment year and then preifill data , this return is for salaried people who Here is a step by step guide on how to file ITR online using ITR-1 form. Step 1: Open e-filing website (https://portal.incometaxindiaefiling.gov.in). Click on "Filing of Income Tax Return" tab on the left-hand side menu. A new window will open for login.