Tax-Prep Software for Business Income Tax (BIT) Filers

Participation in the Illinois Electronic Filing Program for Corporate Income Tax returns is available to software developers, transmitters, Electronic Return Originators (EROs), and taxpayers. To use this method of filing, you can write your own software or buy software from an accepted electronic filer (third party).

If you wish to create your own software for filing or create software to sell, please refer to the BTR-36, Implementation Guide for Business Income Tax Federal/State Electronic Filing Program. To enroll, complete Form IL-8633-B, Business Electronic Filing Enrollment. Once we have received your enrollment form, you may begin testing.

If you choose to have a third party file your return, you may wish to choose from the following software vendors currently approved by the department to electronically file some or all Illinois business income tax returns and corresponding forms and schedules.

Note: Software vendors are deemed approved after they register and have their product approved through testing. These companies may be web-based companies or traditional software development companies that produce a product for the purpose of formatting and transmitting electronic returns.

CS Professional Suite Product Name : UltraTax CS Website: www.cs.thomsonreuters.com Phone: 800 968-8900	CCH, Inc., A WoltersKluwer Company Product Name: ProSystemfx WebSite: www.prosystemfx.com Phone: 800 739-9998
CCH, Small Firm Services Product Name: TaxWise Website: www.TaxWise.com Phone: 866 345-4171	GoSystem Tax Product Name: GoSystem Tax Website: www.cs.thomsonreuters.com/gosystem/ Phone: 800-865-5257
CCH, Small Firm Services Product Name: ATX Website: www.atxinc.com Phone: 866 345-4171 (sales) 866 641-9473 (support)	CorpTax, Inc. Product Name: Corptax Website: www.corptax.com Phone: 800-966-1639
TaxSlayer Pro Product Name: TaxSlayer Pro Website: www.TaxSlayerPro.com Phone: 888 420-1040 (sales) 706-868-0985 (support)	Drake Software, LLC Product Name: Drake Software Website: www.drakesoftware.com Phone: 828-524-8020 (support) 800-890-9500 (sales)
2nd Story Software, Inc. Product Name: TaxACT Website: www.taxact.com Phone: 800 573-4287 (support/sales)	Intuit Product Name: Tax Online WebSite: www.Intuit.com Phone: 800 934-1040 (sales) 800 434-6818 (support)
ONESOURCE Income Tax Product Name: ONESOURCE Income Tax Website: www.onesource.thomsonreuters.com Phone: 800-865-5257	Intuit Product Name: Pro Series WebSite: www.Proseries.intuit.com Phone: 800 934-1040 (sales) 800 434-6818 (support)
Taxsoftware.com Product Name: Taxsoftware.com Website: www.taxsoftware.com Email: help@taxsoftware.com	Vertex, Inc Product Name: Vertex Income Tax Domestic Website: www.vertexinc.com Phone: 800 635-1120
TaxWorks, Inc. Product Name: TaxWorks WebSite: www.taxworks.com Phone: 800 230-2322 (sales) 800 843-1139 (support)	On-Line Taxes, Inc. Product Name: OLTPRO Professional Tax Software Website: www.OLTPRO.com Phone: 816-232-9095 (support) 877-OLT-4-PRO (sales)
Intuit Product Name: Lacerte Software Website: www.lacertesoftware.com Phone: 800 765-7777 (sales) 800 933-9999 (support)	Thomson Reuters Product Name: Tax Simple Website: http://TaxSimple.com Support@TaxSimple.com
Thomson Reuters Product Name: Agile Tax Website: http://AgileTax.com Phone: 855-AGILE-TAX (244-5382)

For questions regarding this program, please contact the Electronic Commerce Division at 1-866-440-8680.

Note: Some taxpayers are required to pay their tax electronically using Electronic Funds Transfer.