While the goal of all online tax filing options is to help you complete your taxes, how well they accomplish that goal - and your experience - can vary greatly. Instead of working with a tax professional, you use an online program to answer questions about your tax situation for the specific tax year to prepare your income tax return. Once you’ve completed your return, the program sends it to the IRS electronically through an e-file service. Online tax filing is a popular way to complete your taxes on your own. What is online tax filing all about?įirst, let’s clarify what we mean by this service. Numerous brands offer free online tax filing services, yet not all provide the same level of resources to consumers. Finding the best free online tax filing service is important.