Providers listed on this webpage are Approved IRS e-file Providers; however, they are not part of, nor do they have any special relationship with the Internal Revenue Service. The following companies have passed the IRS Assurance Testing System (ATS) requirements for Software Developers of electronic Employment Tax Returns for Tax Year 2021. Meeting the requirements means that the software can provide correct data in the proper format for processing by IRS systems. It does not mean that a software package includes every possible schedule or attachment, or that it will meet the needs of all filers. It is the filer's responsibility to contact the provider to determine if the software meets their needs. The providers are not listed in any particular order. Universal Tax Systems, Inc. 225 Chastain Meadows Court NW, Suite 200, (866) 345-4171 Paysoft, LLC 9205 W. Russell Rd. Bldg 3 Suite 240, Las Vegas, NV 89148, (702) 827-0015 Sanford Technology Group, LLC 335 S Marine Corps Drive Ste 200, Tamuning, GU 96913, (671) 647-0220 ext. 400 Smartrak Group INC. PO BOX 41322, Plymouth, MN 55441-0322, (612) 276-3567 TaxBandits.com 2685 Celanese Rd, Suite 100, Rock Hill, SC 29732, (704) 684-4751 C&S Technologies, Inc. 1879 Lundy Ave. Suite #266. San Jose, CA 95131, (408) 935-8969 CFS Tax Software, Inc 1445 Los Angeles Ave., Ste. 214, Simi Valley, CA 93065, 800-343-1157 MasterTax, LLC 111 W. Rio Salado Pkwy, Tempe, AZ 85281, (888) 237-8585 Profit Developers Inc DBA SAXTAX P.O. Box 7280, Port St. Lucie, FL 34985, 772-337-2921, sales@profitdevelopers.com Aatrix Software, Inc. 2617 S Columbia Road, Grand Forks ND 58201, (701) 746-6814 THOMSON REUTERS TAX & ACCOUNTING INC. 6300 Interfirst Dr., Ann Arbor, MI, 48108, (800) 968-8900 TaxTime USA, Inc. 30800 Telegraph Road, Suite 1775, Bingham Farms, MI 48025, (248) 642-7070 Tax Me, LLC 210 Rocketts Way, Suite 411, Henrico VA 23231, (804) 502-1658 Corporate Payroll Services 230 Scientific Drive, Suite 100, Peachtree Corners, GA 30092, (770) 446-7289 Ext. 2143 Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, (800) 487-0677 Sana Tax & Bookkeeping Service, Inc. 37-28, 56th Street, Woodside, NY 11377, (718) 476-1972 LTtax, Inc. 10 West 33rd Street, Suite 1015, New York, NY 10001, (212) 643-1768 Business Software Inc. 155 Technology Parkway, Suite 100, Peachtree Corners, GA 30092, (770) 449-3200 Drake Software 235 East Palmer Street, Franklin, NC 28734, (828) 524-8020 MPAY Inc. 230 Third Avenue, Suite A Waltham, MA 02451, (888) 632-2940 Greenshades Software, Inc. 7020 AC Skinner Parkway, Suite 100, Jacksonville FL 32256, (904) 807-0160 ext. 6088 PrimePay, LLC 1487 Dunwoody Dr. West Chester, PA 19380, (610) 296-4500 Greatland Corporation PO Box 1157, Grand Rapids, MI 49501, (800) 968-1099
Sanford Technology Group, LLC 335 S Marine Corps Drive Ste 200, Tamuning, GU 96913, (671) 647-0220 ext. 400
Profit Developers Inc DBA SAXTAX P.O. Box 7280, Port St. Lucie, FL 34985, 772-337-2921, sales@profitdevelopers.com
Corporate Payroll Services 230 Scientific Drive, Suite 100, Peachtree Corners, GA 30092, (770) 446-7289 Ext. 2143
Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, (800) 487-0677
Business Software Inc. 155 Technology Parkway, Suite 100, Peachtree Corners, GA 30092, (770) 449-3200
Greenshades Software, Inc. 7020 AC Skinner Parkway, Suite 100, Jacksonville FL 32256, (904) 807-0160 ext. 6088
