Income Tax Efiling is a very common term during this part of the year i.e. June-July, after the months of Feb-March or September. Many of us always had a question as to what is Income Tax Efiling and why are we hearing the word Efiling Income Tax more and more these days. In a laymans terms Income Tax Efiling is nothing but Electronic filing of Income Tax returns which are filed every year. As most of us know that Income Tax returns are to be mandatory filed by all the persons having total income exceeding the income not chargeable to tax.(Sec 139 of Income Tax Act, 1961).