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Approved software vendors for corporation and fiduciary returns

2024 tax year

As of January 10, 2025, the following companies passed the Oregon Assurance Testing System (ATS) requirements for software developers of electronic corporate and fiduciary returns for the 2024 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. 

Providers are listed in alphabetic order.

Corporation returns

Corporate Activity Tax

Fiduciary returns

Oregon composite returns

Partnership returns

Pass-through Entity Elective 

Pass-through Entity Owner Tax Payments 

Transit (partnerships)

Contact us

Phone: 503-378-4988 or 800-356-4222

Phone Hours: Monday – Friday 8 a.m. to 5 p.m. 

Phone lines are closed on holidays.

TTY: We accept all relay calls

Request an ADA accommodation.

Fax: 503-945-8738

Email: questions.dor@dor.oregon.gov

Corporation e-filing email: BUS.ElectronicFiling@dor.oregon.gov

Fiduciary and trust e-filing email: TrustEstate.ElectronicFiling@dor.oregon.gov

Individual Income Tax e-filing email: electronic.filing@dor.oregon.gov

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