Submitting Your Tax Forms for Review & Approval

The appropriate Form W-8, 8233, or W-9 must be submitted to PacifiCorp's Tax Department for review and approval. The IRS requires that PacifiCorp maintain the ORIGINAL Form W-8 or 8233 (with an original signature). However, we recommend that foreign vendors first submit the form via fax (503-813-6710) or e-mail ( so that PacifiCorp's Tax Department can review the form before you submit the original. The IRS has strict guidelines on accepting the forms, and our advance review will allow us to identify errors or omissions before you submit the original form.

If you are an existing vendor, be sure to submit a retroactive statement with your Form W-8 or 8233.

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