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. 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 TaxBandits.com 2685 Celanese Rd, Suite 100, Rock Hill, SC 29732, 704-684-4751 LTtax, Inc. 10 West 33rd Street, Suite 1015, New York, NY 10001, 212-643-1768 TaxTime USA, Inc. 30800 Telegraph Road, Suite 1775, Bingham Farms, MI 48025, 248-642-7070 Business Software Inc. 155 Technology Parkway, Suite 100, Peachtree Corners, GA 30092, (770) 449-3200 Greenshades Software, Inc. 7020 AC Skinner Parkway, Suite 140, Jacksonville FL 32256 Sales@greenshades.com or 888-255-3815 Quarterly Express Plus - Lewis Software Associates, LLC 3619 Scruggs Place, Suite B, Springdale, MD 20774, 877-854-0100 MasterTax, LLC 111 W. Rio Salado Pkwy, Tempe, AZ 85281, 888-237-8585 Sana Tax & Bookkeeping Service, Inc. 37-22 57th Street, 2nd Floor, Woodside, NY 11377, (718) 476-1972 CFS Tax Software, Inc 1445 Los Angeles Ave., Ste. 214, Simi Valley, CA 93065, 800-343-1157 Zenwork, Inc. 1 E Center Street, Suite 250, Fayetteville, AR 72701, 877-811-3829 PrimePay, LLC 1487 Dunwoody Dr. West Chester, PA 19380, 610-296-4500 C&S Technologies, Inc. 1879 Lundy Ave. Suite #266. San Jose, CA 95131, 408-935-8969 Corporate Payroll Services 230 Scientific Drive, Suite 100, Norcross, GA 30092, 770-446-7289 Drake Software 235 East Palmer Street, Franklin, NC 28734, 828-524-8020 Aatrix Software, Inc. 2617 S Columbia Road, Grand Forks, ND 58201, 701-746-6814 Workful, LLC 945 Broad Street Augusta Ga 30901, 866-967-5385 MPAY Inc. 230 Third Avenue, Suite A Waltham, MA 02451, (888) 632-2940 Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, 800-487-0677 Sovos Compliance, LLC 200 Ballardvale St. 4th Floor, Wilmington, MA 01887, 866-890-3970 Paysoft, LLC 9205 W. Russell Rd. Bldg 3 Suite 240, Las Vegas, NV 89148, 702-827-0015 Universal Tax Systems, Inc. 225 Chastain Meadows Court NW, Suite 200, 866-345-4171 Advanced Tax Solutions, LLC 1603 Capitol Ave, Suite 310 A254, Cheyenne, WY 82001, (307) 414-1211, support@mytaxprepoffice.com Profit Developers Inc DBA SAXTAX P.O. Box 7280, Port St. Lucie, FL 34985, 772-337-2921, sales@profitdevelopers.com Intuit Inc. Corporate Headquarters, 2700 Coast Ave, Mountain View, CA 94043, Corporate 650-944-6000, Payroll Services 775-332-8800 THOMSON REUTERS TAX & ACCOUNTING INC. 6300 Interfirst Dr., Ann Arbor, MI, 48108, 800-968-8900 Tax Me, LLC 210 Rocketts Way, Suite 411, Henrico, VA 23231, 804-502-1658 Smartrak Group INC. PO BOX 41322, Plymouth, MN 55441-0322, 612-276-3567
Sanford Technology Group, LLC 335 S Marine Corps Drive Ste 200, Tamuning, GU 96913, 671-647-0220 ext. 400
Business Software Inc. 155 Technology Parkway, Suite 100, Peachtree Corners, GA 30092, (770) 449-3200
Greenshades Software, Inc. 7020 AC Skinner Parkway, Suite 140, Jacksonville FL 32256 Sales@greenshades.com or 888-255-3815
Quarterly Express Plus - Lewis Software Associates, LLC 3619 Scruggs Place, Suite B, Springdale, MD 20774, 877-854-0100
Sana Tax & Bookkeeping Service, Inc. 37-22 57th Street, 2nd Floor, Woodside, NY 11377, (718) 476-1972
Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, 800-487-0677
Advanced Tax Solutions, LLC 1603 Capitol Ave, Suite 310 A254, Cheyenne, WY 82001, (307) 414-1211, support@mytaxprepoffice.com
Profit Developers Inc DBA SAXTAX P.O. Box 7280, Port St. Lucie, FL 34985, 772-337-2921, sales@profitdevelopers.com
Intuit Inc. Corporate Headquarters, 2700 Coast Ave, Mountain View, CA 94043, Corporate 650-944-6000, Payroll Services 775-332-8800
