Providers listed on this webpage 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 Form 1041 Estate and Trusts Tax 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. TaxAct, Inc. - Professional 1425 60th St NE, Cedar Rapids, IA 52402, 319-536-3571 TaxAct, Inc. 1425 60th St NE, Cedar Rapids, IA 52402, 319-373-3600 Drake Software 235 East Palmer Street, Franklin, NC 28734, 828-524-8020 (Support) Intuit Inc 7535 Torrey Santa Fe Rd, San Diego, CA 92129, 800-934-1040 Profit Developers Inc P.O. Box 7280, Port St. Lucie, FL 34952, 772-337-2921 Thomson Reuters ONESOURCE Trust Tax Company 2395 Midway Road, Carrollton, TX 75006, 800-327-8829