If you have not received interest on your tax refund, most probably, there may be a reason behind it. Interest on refund can only be paid given the fact the amount of refund is more than 10 percent of the actual tax liability. It is necessary to clear the doubts about the issue. Exchequer of the government along with time and resources is precious. So as responsible citizen, we should be well-conversant with the basics of Income Tax Refund so that we can save our hardships along with saving precious time and efforts of the Income Tax Department.