This is effectively the simplest, and a two page form, and meant to cover all individuals not having detailed kind of incomes as spelt out in form selection module.
(we are doing only a pre-read here, before the actual fill out, as I need to know how do I actual fill out in the sense of handfill, computer fill, online fill, which is in next module, so what you could do is take the form print, try filling whatever you can yourself before its given for filing to whom so ever you consider worthy of filing, it can even be you)