Businesses

​2020 tax year

As of February 24, 2021, the following companies passed the Oregon Assurance Testing System (ATS) requirements for software developers of electronic corporate and fiduciary returns for the  2020 tax year. This means that their software uses the proper processing formats for both the IRS and Oregon. It doesn't mean that the software includes every possible schedule, attachment, or that it meets the needs of all filers. We are still testing vendors, and we will be updating this list periodically.

Providers are listed in alphabetic order.

Corporation returns

Company Name​Software Name
Advanced Tax Solutions, LLCMyTAXPrepOffice
CCH Small Firm ServicesTax Wise
CCH Small Firm Services, A Wolters Kluwer BusinessATX
CCH, a Wolters Kluwer BusinessProsystem FX
Corptax, Inc.Corptax
CS Professional Suite (Thomson Reuters)UltraTax CS
Drake SoftwareDrake Software
H&R BlockBlockWorks
IntuitLacerte
ProSeries
ProConnect Tax Online
On-Line Taxes, Inc.OLTPRO DESKTOP
OLTPRO Web
​PricewaterhouseCoopers LLP
PARS Efiler​
TaxAct
TaxAct
TaxSlayer, LLCTaxSlayer Pro
Tax Technologies, Inc.Tax Series
Thomson Reuters Tax & AccountingGoSystem Tax
ONESOURCE Income Tax

Corporate Activity Tax

Company Name
Software Name
​CCH, a Wolters Kluwer Business
Prosystem 
Corptax, Inc.
CSC Corptax
​CS Professional Suite (Thomson Reuters)
UltraTax CS​
Tax Technologies, Inc.Tax Series
Thomson Reuters Tax & AccountingGoSystem Tax
ONESOURCE Income Tax

Partnership returns

Company NameSoftware Name
Advanced Tax Solutions, LLCMyTAXPrepOffice
CCH Small Firm Services, A Wolters Kluwer BusinessATX
CCH, a Wolters Kluwer BusinessProsystem FX
Corptax, Inc.Corptax
CS Professional Suite (Thomson Reuters)UltraTax CS
Drake SoftwareDrake Software
H&R BlockBlockWorks
IntuitLacerte
ProSeries
ProConnect Tax Online
On-Line Taxes, Inc.OLTPRO Desktop
OLTPRO Web
TaxActTaxAct
TaxSlayer, LLCTaxSlayer Pro
Tax Technologies, Inc.Tax Series
Thomson Reuters Tax & AccountingGoSystem Tax
ONESOURCE Income Tax

Oregon composite returns

Company NameSoftware Name
CCH, a Wolters Kluwer BusinessProSystem FX
Corptax, Inc.Corptax
CS Professional Suite (Thomson Reuters)UltraTax CS
Drake SoftwareDrake Software
Tax Technologies, Inc. Tax Series
Thomson Reuters Tax & AccountingGoSystem Tax
ONESOURCE Income Tax

Transit (partnerships)

Company NameSoftware Name
CCH, a Wolters Kluwer BusinessProsystem FX
CS Professional Suite (Thomson Reuters)UltraTax CS
Drake SoftwareDrake Software

Fiduciary returns

Company Name

Software Name
​Advanced Tax Solutions, LLC​
MyTAXPrepOffice​
CCH, a Wolters Kluwer BusinessCCH Prosystem FX and Axcess Tax
CS Professional Suite (Thomson Reuters)ONVIO  and UltraTax CS
Drake Software
Drake Software
Intuit
ProConnect Tax Online and Lacerte
On-Line Taxes, Inc.OLTPRO Desktop and OLTPRO Web 
TaxSlayer
TaxSlayer Pro
Thomson Reuters Tax & Accounting​​

GoSystem
ONESOURCE Income Tax ​