Oregon Corporate Activity Tax

Passed in 2019, Oregon’s Corporate Activity Tax (CAT) is a unique, first-of-its-kind tax on businesses with customers in the state or that have Oregon-based vendors, suppliers, or service providers.

Approaching the CAT similar to net income taxes, gross receipts, or margins tax imposed by other states could put your business at a risk of an audit assessment or overpaying the CAT.

Our professionals can help determine if you’re liable for the CAT and guide you through managing your tax obligations.

Meet Your CAT Obligations

The CAT’s specific tax base and calculation are atypical, so it’s important to have a deep understanding of its complexities.

Challenges related to navigating the tax obligations include:

  • The 40+ commercial activity exclusions, with contemporary documentation needed to meet some exclusions
  • A business’ CAT unitary group could be different from the unitary group for income tax
  • Rules for identifying Oregon commercial activity could differ from Oregon receipts included in an income tax apportionment percentage
  • Several steps are required when calculating the subtraction

The CAT also includes separate registration and payment mechanisms.

Who We Help

Despite the inclusion of corporate in its title, the CAT can apply to:

  • Individuals
  • Corporations
  • Joint ventures
  • LLCs, including entities disregarded for federal income tax purposes
  • Limited liability partnerships
  • Partnerships
  • Trusts

How We Help You

Our professionals can help you:

  • Determine your unitary group
  • Identify Oregon commercial activity
  • Identify and document exempt commercial activity
  • Add purchases subject to use tax
  • Calculate your subtraction


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