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 2024. 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. C&S Technologies Inc. 1879 Lundy Ave. Suite #266. San Jose, CA 95131, 408-935-8969 TaxBandits.com 2685 Celanese Rd, Suite 100, Rock Hill, SC 29732, 704-684-4751 Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, 800-487-0677 Tax Me, LLC 210 Rocketts Way, Suite 411, Henrico, VA 23231, 804-502-1658 Profit Developers Inc P.O. Box 7280, Port St. Lucie, FL 34952, 772-337-2921 Aatrix Software, Inc. 2617 S Columbia Road, Grand Forks, ND 58201, 701-746-6814 Greatland Corporation PO Box 1157, Grand Rapids, MI 49501, 800-968-1099 TaxZerone, LLC 690 Saratoga Ave, Ste 100, San Jose, CA 95129, 408-444-7120, support@taxzerone.com Tekplus, LLC 8201 164th Ave NE, Suite 200, Redmond, WA 98052, 502-259-0936 Sovos Compliance, LLC 200 Ballardvale St. 4th Floor, Wilmington, MA 01887, 866-890-3970 Greenshades Software, Inc. 7020 AC Skinner Parkway, Suite 140, Jacksonville FL 32256 Sales@greenshades.com or 888-255-3815 TaxTime USA, Inc. 30800 Telegraph Road, Suite 1775, Bingham Farms, MI 48025, 248-642-7070 Universal Business Computing Company P.O. Box 25764, Colorado Springs, CO 80936-5764, 800-827-8610 Drake Software, LLC 235 E Palmer St, Franklin, NC 28734, 800-890-9500 Smartrak Group, Inc. P.O. Box 41322, Plymouth, MN 55441-0322, 612-276-3567 Universal Tax Systems, Inc. 225 Chastain Meadows Court NW, Suite 200, 866-345-4171 Zenwork, Inc. 1 E Center Street, Suite 250, Fayetteville, AR 72701, 877-811-3829 Quarterly Express Plus - Lewis Software Associates, LLC 3619 Scruggs Place, Suite B, Springdale, MD 20774, 877-854-0100 Pistus, Inc. 724 Jules Street, St Joseph, MO, 64501, 844-474-7887 TimeTrex Software Inc. 12128 N Division St., Suite #560, Spokane, WA 99218, 800-714-5153 EarnHCM 1220 S. Central Ave. #204, Glendale, CA 91204, 323-999-518 Corporate Payroll Services 230 Scientific Drive, Suite 100, Norcross, GA 30092, 770-446-7289 Advanced Tax Solutions, LLC 1603 Capitol Ave, Suite 310 A254, Cheyenne, WY 82001, 307-414-1211 CFS Tax Software, Inc. 1445 Los Angeles Ave., Ste. 214, Simi Valley, CA 93065, 800-343-1157
Financial MicroSystems, Inc - Client Ledger System Software 3000 Langford Rd., Ste. 2500, Peachtree Corners, GA 30071, 800-487-0677
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