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 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. Thomson Reuters Tax & Accounting, Inc. 6160 Warren Parkway, Frisco, TX 75034, 800-327-8829 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 Crosslink Professional Tax Solutions, LLC 16916 S. Harlan Road, Lathrop, CA 95330, 800-345-4337 Taxware Systems, Inc. 195 N. Euclid Ave, Suite 201, Upland, CA 91786, 909-931-3131
