Its is mandatory for individuals, NRIs, partnership firms, LLPs, companies and Trust to file income tax returns each year. Individuals and NRIs are required to file income tax return, if their income exceeds Rs.2.5 lakhs per annum. Proprietorship firms and partnership firms are required income tax return - irrespective of amount of income or loss. All companies and LLPs are mandatorily required to file income tax return, irrespective of turnover or profit. As a responsible and compliant citizen, one is required to file tax returns. The due date for income tax return filing is 31st July of every year for individual taxpayers. The due date for income tax return filing for companies and taxpayer requiring tax audit is 30th September. Section 44AD of the Income Tax Act deals with tax audit under Income Tax Act.