Liberty Tax Service, 14229 B3 Reese Blvd., Huntersville, (BI-LO shopping center) is offering free tax returns for certain professionals throughout the month of March. Free returns are only available for new clients. Feb. 27 to March 4 is teacher appreciation week, March 5-11 is police and firefighter appreciation week, March 12-18 is hospital appreciation week, March 19-25 is healthy living appreciation week, and March 26 to April 1 is volunteers and nonprofits appreciation week. For more information, or to make an appointment, call 704-948-1646.