Approved Excise Transmitters and Software Developers


Software developers (vendors) and third-party transmitters that have successfully completed the EDI testing and who have been accepted as an Electronic Participant in the ExSTARS electronic filing program are listed below.

Acceptance to participate in the electronic filing program does not imply endorsement by the IRS or the Treasury Department of the software or quality of services provided. If you purchase software from an approved vendor, or contract with an approved transmitter, you must still complete the Letter of Application (LOA) process.

Software Developers EDI Map 4030 ExSTARS Testing Completion Date EDI Map 4030 ExSTARS Approved Version/Release**see note below EDI Map 4030 ExSTARS version 2.3 Approved Version Release
effective 2/13/19
Dearman Systems, Inc.
6137 East Grant Road
Tucson, AZ 85712
Phone: 520-298-1677
Dearman Systems website
Jan 2006 Dearman ExSTARS4030


LiquiFile Services
245 Junction Trak
Roswell, GA 30075
Phone: 678-819-2250
LiquiFile website
 Apr 2006 Liquidfile 4030 LiquiFile V3
Varec, Inc.
5834 Peachtree Corners East
Norcross, GA 30092
Phone: 770-447-9202
Varec website
Oct 2006 FuelsManager Aviation7.1 ExSTARS.exe Version7.1.0.16 For Terminal Operators Only FuelsManager Aviation 7.1 ExSTARS.exe Version
DTN (formerly Diamond Control Systems)
100 Allentown Pkwy,
Suite 111
Allen, TX 75002-4200
Phone: 888-682-9128
Sep 2006 DTN Guardian 3 Release 7 For Terminal Operators Only DTN 10.05
Mark Jones Systems, LLC
1120 West Prince Road
Tucson, AZ 85705
Phone: 520-887-9340
Mar 2008 Version 3.0 MJS_NExSTARS for New Map Version 2.2.4
Innovative Software Solutions
314 E Nakoma
Suite S 
San Antonio, TX  78216
Phone: 877-752-5673
Innovative Software Solutions website
Aug 2012 N/A AKORE TaxCalendar 4.0 Motor Fuel Tax Module
100 Ravine Lane NE
Suite 220
Bainbridge Island, WA 98110
Phone: 877-780-4848
Avalara website
Jun 2014 Avalara Zytax Compliance 5.17.10 Avalara Zytax Compliance 5.17.10
340 N Broadway St, Suite 260
Green Bay, WI 54303
Phone: 888-998-4436
IGen website
Jun 2014 N/A IGenFuels'IGenEFile Version 2.0
2003 Edwards St
Houston, TX 77007
Phone: 713-409-2210
JunoLogix website
Feb 2017 Everflow Motor Fuels Compliance Version 3.2 Everflow Motor Fuels Compliance Version 3.2
i6 Systems LLC
234 Garibaldi Ave
Lodi, New Jersey 07644
Phone: 908-441-8040
Dec 2020 Fusion6 & Reconcile6 Release 1.105

**Note:   Please be aware that returns that are not filed or not timely filed may be subject to penalty application under IRC 6725. In addition, IRC 6725 may be applied to inaccurately filed returns. Please ensure your filings are accurate and timely.