It is tax time again! Want to save yourself the cost of purchasing software to configure your taxes? Head online to www.militaryonesource.comwhere you can use the software for free. H&R Block offers free online tax filing services on the site to military families. Just go to the Military OneSource site and click on the tax service page. It will ask you to log on to Military OneSource, so if you have not signed up as a member of the site, do so now. Then it will direct you to the tax preparation software.