Multnomah County, OR Payroll Tax Registration

Oct 17, 2025

If you are an employer in Multnomah County, Oregon, it is important to be aware of the local payroll tax requirements for businesses operating in the city. These requirements may include registering your business with the city and withholding a certain percentage of your employees' wages for local taxes.

How to Register for Payroll Tax in Multnomah County

Multnomah County, Oregon Local Personal Income Tax Setup for Corporation, LLC, LLP, Professional Corporation, PLLC

Employers with a physical location within Multnomah County must register to withhold the Preschool For All (PFA) Personal Income Tax if it has a physical location in the county and employees working in the county who meet any of the following criteria: (1) earn $200,000 or more per year individually; (2) earn at least $150,000 individually and choose to opt in to withholding; or (3) earn $200,000 jointly and opt in to withholding.

  1. Register Your Business

    Visit Portland Revenue Online (PRO), and click "Register My Business" to register your business for the PFA tax.

Documents and Resources

Accounts Logins

Multnomah County, OR Payroll Registration Agencies

Use Mosey to register for payroll accounts in Multnomah County.

Register for payroll taxes with the state of Oregon

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