Tax filing is the process of filing your income tax returns with the Income Tax Department. This involves making a declaration of income and the taxes already paid over the year. This is required so that there is proper tax compliance and to make sure that one has paid the right amount of tax. In case the taxpayer had paid amounts of tax higher than that required, then a refund of the excess is granted. Essentially, tax filing helps maintain transparency and fairness in your financial obligations to the government.