Filing your Income Tax Return: The first step in the process of filing an income tax return is to submit all the required documents. Apart from Form 16, documents related to your income and investments, these documents also include Form 26AS and Annual Information Statement (AIS). You can get Form 26AS from the TRACES portal. Whereas AIS, launched in November 2021, is an expanded version of Form 16A containing a TDS certificate, which can be obtained by logging into the Income Tax Department website www.incometax.gov.in.