Providers listed on this page are Approved IRS Modernized e-File (MeF) 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 Corporate Returns for Tax Year 2018. 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. Corptax, Inc. 2100 E. Lake Cook Road, Suite 800, Buffalo Grove, IL 60089 (800) 966-1639 H&R Block One H&R Block Way, Kansas City, MO 64105, 1-800-HRBLOCK / 1-800-472-5625 A Andrew Harrison CPA PC 526 Ralph Avenue Brooklyn, NY 11233 (844) 886-8376 Toll Free (718) 363-9500 Tax Technologies, Inc. 196 Woods Ave, Bergenfield, NJ 07621, (678) 574-2160 CrossLink Professional Tax Solutions, LLC 16916 S. Harlan Road, Lathrop, CA 95330, 800-345-4337 Thomson Reuters - UltraTax CS 6300 Interfirst Drive, Ann Arbor, MI 48108 (800) 968-8900 Taxware Systems Inc. 924 W 9th Street, Upland, CA 91786 (909) 931-3131 Advanced Tax Solutions, LLC 1603 Capitol Ave, Suite 310 A254, Cheyenne, WY 82001 (307) 414-1211 GOSYSTEM ONESOURCE 2395 Midway Road, Carrollton, TX 75006, (800) 865-5257 TaxAct, Inc. 1425 60th Street NE, Cedar Rapids, IA 52402, (319) 373-3600 Forte International Tax, LLC 1603 Orrington Avenue, Suite 600, Evanston, Illinois 60201 1-847-733-0645
Forte International Tax, LLC 1603 Orrington Avenue, Suite 600, Evanston, Illinois 60201 1-847-733-0645