Read information regarding the most usable ITR 1 form. ITR-1 is also known as the Sahaj form and the government made it very simple to understand. Let's check here to get to know the easy and simple step-by-step process to file the online income tax return for the assessment year 2021-22. So, here we are given some steps to file the ITR-1 like Aadhaar and PAN card linked for tax filing, the annual year 2021-22 who is eligible to file ITR-1, who cannot file ITR-1, and much more.