The Providers listed on these webpages 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 Providers have passed the IRS Assurance Testing System (ATS) requirements for Software Developers of electronic Partnership (1065 MeF) 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. Thomson Reuters - Onvio Tax 6300 Interfirst Drive, Ann Arbor, MI 48108, 800-968-8900 Drake Software 235 East Palmer Street, Franklin, NC 28734, 828-524-8020 (support) H&R Block One H&R Block Way, Kansas City, MO, 64105, 800-HRBLOCK/800-472-5625 Advanced Tax Solutions, LLC 1603 Capitol Ave, Suite 310 A254, Cheyenne, WY 82001, 307-414-1211 Corptax, Inc. 2100 E. Lake Cook Road, Suite 800, Buffalo Grove, IL 60089 800-966-1639 TaxAct, Inc. 1425 60th St NE, Cedar Rapids, IA 52402, 319-373-3600 SAXTAX.com/Profit Developers, Inc. PO Box 7280, Port St. Lucie, FL 34985, (772) 337-2921 Tax Technologies, Inc. 196 Woods Ave., Bergenfield, NJ 07621, 678-574-2160 TaxAct 1425 60th Street NE, Cedar Rapids, IA 52402, 319-373-3600 TaxAct, Inc. 3390 Asbury Road, Dubuque, IA 52002, 319-373-3600 Intuit Inc. 7535 Torrey Santa Fe Rd, San Diego, CA 92129, 800-446-8848 ProTaxPro by FileYourTaxes.com PO Box 7657, Oxnard, CA 93031 805-256-1791 CrossLink Professional Tax Solutions, LLC 16916 S. Harlan Road, Lathrop, CA 95330, 800-345-4337 CCH, A Wolters Kluwer Business 9111 E. Douglas, Suite 400, Wichita, KS 67207, 800-739-9998 Thomson Reuters - UltraTax CS 6300 Interfirst Drive, Ann Arbor, MI 48108, 800-968-8900