Which tax jurisdictions Tualatin is actually in
Tualatin is in Washington and Clackamas counties. Oregon’s local tax boundaries do not follow city limits or ZIP codes, so this is worth being precise about.
- Inside the Metro district, so Metro SHS applies to income above $128,000 single / $205,000 joint.
- Outside Multnomah County, so Preschool for All does not apply on residency — but it can still apply to income sourced to work performed in the county.
- Straddles two counties — which matters less for personal tax here than it does in Lake Oswego, but still worth confirming by address.
- Inside the TriMet district, so the TriMet self-employment tax reaches self-employed people working here — see transit taxes.
The local economy, and what it means for a tax return
Manufacturing, distribution and light industrial in the Tualatin–Sherwood corridor, with a workforce drawn from across the south metro. Businesses here often have customers across Oregon and Washington, which puts sourcing at the center of both CAT and the local business taxes.
We work with clients around the Tualatin–Sherwood industrial corridor, Bridgeport Village, the Tualatin River and Lake of the Commons downtown.
Who we work with in Tualatin
- Manufacturers and distributors in the Tualatin–Sherwood industrial corridor
- Logistics and freight businesses moving goods across the Oregon–Washington line
- Equipment-heavy businesses with substantial depreciation schedules
- Shift-work employers with payroll spanning several jurisdictions
What we do most of in Tualatin
Tax situations we see in Tualatin
High revenue, thin margins, and a receipts tax
Distribution is the business type Oregon CAT hits hardest, because the tax is levied on commercial activity rather than on profit. A Tualatin distributor with three million in Oregon-sourced receipts and a bad year still calculates CAT on the activity. Getting the sourcing right is the main lever: goods delivered to Washington customers are generally not Oregon commercial activity, though they may create Washington B&O exposure instead.
Working with us from here
About twenty-five minutes from the Clackamas office via I-205.
Most clients outside the immediate Clackamas area work with us remotely — secure document exchange, a phone or video appointment, and e-filing. If you would rather sit across a desk, both offices do that too: Clackamas and The Dalles.
Questions we get from Tualatin
We ship a lot to Washington customers. Does that count for CAT?
Generally not — CAT reaches Oregon-sourced commercial activity. But Washington-delivered sales may create B&O tax exposure instead.
Which county am I in?
Tualatin spans two. For most personal tax questions it matters little here, but confirm by address rather than by city name.
Do you handle equipment-heavy businesses?
Yes — depreciation, section 179, bonus depreciation and the interaction with Oregon’s treatment are routine.
How do we track sourcing without rebuilding our whole system?
Usually a delivery-location field on the invoice and a matching class or location in the accounting file. Set up once, it turns the CAT and city apportionment questions into a report rather than a March reconstruction.
We are buying a large piece of equipment. Does the timing matter?
It does, and not always in the direction people assume. Placing it in service before year end accelerates the deduction, which helps in a strong year and wastes it in a weak one. Look at the year you are actually having first.
Talk to someone who files these returns every week
Bring last year’s return and whatever changed. Start with a complimentary 15-minute introductory call about your situation and whether we are a good fit.
Written by
Enrolled Agent, Oregon Licensed Tax Consultant
License number: Enrolled Agent 00160070-EA · Oregon Licensed Tax Consultant 35746-C
Heather has spent more than a decade preparing individual and business returns across the Portland metro and the Columbia Gorge, and holds unlimited rights to represent taxpayers before the IRS.
Last reviewed
This page is general information about Oregon, Washington and federal tax rules, not advice about your own return. Thresholds and rates change every year. Figures were verified as of August 2026 — check the linked official sources, or talk to us about your situation.