Skip to main content
Department of Taxation and Finance

Approved software developers for corporation tax e-file

To participate in the New York State e-file program, you must use tax preparation software that has been tested by the Tax Department.  Our testing process ensures tax returns are properly formatted and can be processed when we receive them.  Tax Department testing does not imply that we endorse the quality of the software (see also Important Information Regarding Electronic Filing).

The software developers and products in the chart below are approved for corporation tax e-file.

The Main forms approved for tax year 2020 column lists all forms that the software developers tested and approved for tax year 2020 only.

 Approved software developers for corporation tax e-file
Software developer           Product name For more information *Main forms approved
for tax year 2020
Tax years
Petz Enterprises, Inc
16916 S. Harlan Road
Lathrop, CA 95330
Crosslink www.crosslinktax.com
1-800-345-4337
Extensions
CT-300, CT-400, CT-3S, CT-3/3M, CT-13
2018- 2020

Wolters Kluwer, CCH 9111 E Douglas Ave., Suite 300 Wichita, KS 67207

CCH Prosystem fx and CCH Axcess www.wolterskluwer.com
1-800-739-9998
Extensions
CT-300, CT-400, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC CT-13, CT-33/33M, CT-33NL, CT-33C
2018- 2020
CS Professional Suite
6300 Interfirst Dr
Ann Arbor, MI  48108
UltraTax CS tax.thomsonreuters.com/us/en/cs-professional-suite/ultratax-cs
1-800-968-8900
Extensions
CT-300, CT-400, CT-13, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC, CT-183/183M, CT-184/184M
2018- 2020
Drake Enterprises, LTD
235 E Palmer St
Franklin, NC 28734
Drake Software www.drakesoftware.com
1-828-527-8020
Extensions
CT-300, CT-400, CT-3S, CT-3/3M
2018- 2020
On-Line Taxes Inc.
724 Jules Street
St Joseph, MO 64501
OLTPro Desktop www.OLTPRO.com
1-877-658-4776
Extensions
CT-300, CT-400, CT-13, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC, CT-183/183M, CT-184/184M
2018- 2020
On-Line Taxes Inc.
724 Jules Street
St Joseph, MO 64501
OLTPro Web www.OLTPRO.com
1-877-658-4776
Extensions
CT-300, CT-400, CT-13, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC, CT-183/183M, CT-184/184M
2018- 2020
Thomson Reuters - GoSystem/ONESOURCE
2395 Midway Rd
Carrollton, TX 75006
GoSystem/ONESOURCE CS.Service@thomsonreuters.com
1-800-968-8900

Extensions, CT-13

2018- 2020
Intuit, Inc.
5601 Headquarters Dr
Plano, TX 75024
Lacerte Software accountants.intuit.com/tax/lacerte
1-888-875-6701
Extensions
CT-300, CT-400, CT-13, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC
2018- 2020
CCH-Small Firm Services
225 Chastain Meadows Ct NW
Suite 200
Kennesaw, GA 30144
ATX taxna.wolterskluwer.com
1-770-857-5000

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020

Thomson Reuters Tax & Accounting
2395 Midway Rd
Carrollton, TX 75006

GoSystem Tax; ONESOURCE Income Tax

www.thomsonreuters.com
1-800-865-5257

Extensions
CT-300, CT-400, CT-3S, CT-3/3M, CT-3A, CT-3-A/BC, CT-183/183M, CT-184/184M, CT-186E, CT-33/33M, CT-33NL, CT-33C, CT-33A

2018- 2020


TaxSlayer
945 Broad St
Augusta, GA 30901


TaxSlayer

www.taxslayerpro.com
sales: 1-888-420-1040
customer support: 706-868-0985

Extensions
CT-300, CT-400, CT-13, CT-3/3M, CT-3S

2018- 2020

Intuit, Inc.
5601 Headquarters Dr
Plano, TX 75024
ProLine Tax Online proconnect.intuit.com/tax-online
1-888-875-6701

Extensions
CT-300, CT-400, CT-13, CT-3/3M, CT-3S

2018- 2020

Intuit, Inc.
7535 Torrey Santa Fe Rd
San Diego, CA 92122

Proseries

proconnect.intuit.com/proseries
1-800-934-1040

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020

CORPTAX, Inc.
2100 E. Lake Cook Road, Suite 800
Buffalo Grove, IL 60089
CSC CORPTAX www.corptax.com
1-847-236-8000
Extensions
CT-300, CT-400, CT-3/3M, CT-3S, CT-3A, CT-3-A/BC, CT-33/33M, CT-33A, CT-33NL

2018- 2020
TaxAct
1425 60th Street NE
Cedar Rapids, IA 52402
TaxAct Professional www.taxact.com/professional
1-319-373-3600

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020
TaxAct
1425 60th Street NE
Cedar Rapids, IA 52402
TaxAct Business www.taxact.com/business-returns
1-319-373-3600

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020
CCH Small Firm Services
225 Chastain Meadows CT
Suite 200
Kennesaw, GA 30144
Taxwise taxna.wolterskluwer.com
1-866-345-4171

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020
Tritech software Development Corp
1205 S Greenville Ave
Allen, TX 75002

Premium Pro

www.tritechsoft.com
1-800 380-6407

Extensions
CT-300, CT-400, CT-33, CT-33M, CT-33NL

2018- 2020
CCH-Small Firm Services
225 Chastain Meadows Ct NW
Suite 200
Kennesaw, GA 30144
H & R Block Premium & Business taxna.wolterskluwer.com
Customer support: 1-800-472-5625
CT-300, CT-400, CT-13, CT-3/3M, CT-3S 2018- 2020
Intuit, Inc.
7535 Torrey Santa Fe Rd
San Diego, CA 92122

TurboTax Business

turbotax.intuit.com/small-business-taxes

Extensions
CT-300, CT-400, CT-3/3M, CT-3S

2018- 2020
Tax Technologies, Inc.
196 Woods Avenue
Bergenfield, NJ 07621

Tax Series

www.taxtechnologies.com
Customer Service 1-678-574-2160

Extensions
CT-300, CT-400


2018- 2020

Advanced Tax Solutions, LLC
1603 Capitol Ave. Suite 310 A254
Cheyenne, WY 82001


MyTaxPrepOffice

www.mytaxprepoffice.com
Helpline: support@mytaxprepoffice.com
1-307-414-1211

Extensions
CT-300, CT-400, CT-13, CT-3/3M, CT-3S


2018- 2020
Crowe LLP
One Mid America Plaza, Suite 700
Oak Brook, IL 60522
C-TRAC www.crowe.com/ctrac
1 877 492-8722
2018-2019
Taxware Systems
924 W 9th St.
Upland, CA 91786
WinScorp www.taxwaresystems.com
sales@taxwaresystems.com
Sales: 1-800-877-1065 or 1-909-931-3131
CT-3S 2018-2020
Thomson Reuters/Onvio Tax
6300 Interfirst Dr.
Ann Arbor, MI 48108

Onvio Tax

tax.thomsonreuters.com/us/en/cs-professional-suite/

Extensions
CT-300, CT-400, CT-13, CT-3/3M, CT-3S

2020

Updated: