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 2023. 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 - UltraTax CS 6300 Interfirst Drive, Ann Arbor, MI 48108, 800-968-8900 Profit Developers, Inc. P.O. Box 7280, Port St Lucie, FL 34985-7280, 772-337-2921 Crosslink Professional Tax Solutions, LLC 16916 S. Harlan Road, Lathrop, CA 95330, 800-345-4337 On-Line Taxes, Inc. 724 Jules Street, St Joseph, MO 64501, 877-658-4776 Thomson Reuters Tax & Accounting, Inc. 2395 Midway Rd., Carrollton, TX 75006, 800-327-8829 ICLUBcentral, Inc. 570 Kirts Boulevard, Suite 237, Troy, MI 48084, 248-654-3100 CCH a Wolters Kluwer Business 9111 E Douglas, Ste 300, Wichita, KS 67207, 800-739-9998 Tax Technologies, Inc. 196 Woods Ave, Bergenfield, NJ 07621, 866-239-4884 Bivio, Inc. 4800 Baseline Rd, Unit E104336, Boulder, CO 80303-2643, 877-529-0585 Corptax, Inc. 2100 E. Lake Cook Road, Suite 800, Buffalo Grove, IL 60089, 800-966-1639 TaxAct, Inc. 3200 Olympus Blvd., Suite 150, Dallas, TX 75019, 319-373-3600 Taxware Systems, Inc. 195 N. Euclid Ave, Suite 201, Upland, CA 91786, 909-931-3131