The interview firsts asks for your MARITAL status and then as you complete the MY INFO section and if you enter a qualifying child the option to choose the HOH filing status will be presented. If it is not then either you do NOT qualify or you are answering something incorrectly. Two of the most common mistakes are entering the wrong months the child lived with you especially if it is a new born OR saying the CHILD pays more than 50% of their own support. I would delete the child and enter them again from scratch making sure to read every word on every screen carefully ... sometimes reading them out loud will help you understand the question.
