This term is widely used in the provisions of Income Tax Act, 1961 and defined in Section 2(7). The Act defined this term as a Person who has to pay or payable Tax or any other sum of money under this Act. It includes every person whose proceedings are taken for the assessment of his Income or assessment of fringe benefits. In some other cases a person is considered for Assessment in respect of the income of some other persons. In such cases also he will be considered as an Assessee. This term also includes every person who is deemed to be an assessee or an assessee in default under any provision of this Act.