The following companies have passed the IRS Assurance Testing System (ATS) and/or Business Acceptance Testing (BATS) requirements for Software Developers of electronic business returns to the IRS. 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.
| These providers are listed in no particular order. |