Contractor insurance in Hillsboro and Washington County.

Hillsboro states on its own economic development pages that there is no business income tax, city or county. Portland contractors doing the same work face a 2.6 percent city tax and a 2 percent county tax on net business income. Same metro area, an entirely different tax structure a few miles apart (City of Hillsboro).

Who this page is for

Contractors working Hillsboro, Beaverton and the Washington County side of the metro, and trades chasing work in the semiconductor corridor. The local rules here are the opposite of Portland's in one important way, and identical to Portland's in another that catches people out.

What this page covers. Hillsboro and the Washington County side of the metro, focused on the Silicon Forest build market. General suburban remodel work across the metro is covered on the Portland Metro page. This page is about the mega-project story, because that is what makes Washington County different rather than just adjacent.

No business income tax, but a licence with a per-employee fee

Hillsboro's own economic development materials say it plainly: no business income tax, city or county. That is a genuine structural difference from Portland, where a 2.6 percent city tax and a 2 percent county tax sit on net business income.

What Hillsboro does require is a business licence for anyone operating in city limits, and the fee is headcount-based rather than income-based. A new licence runs $105, which is an $80 application fee plus a $25 base fee covering the first two people, with $5 per additional full-time equivalent, capped at $725. Renewal carries a $25 base fee. Businesses in the downtown district pay a small additional amount.

For a contractor the practical read is simple: growing your crew raises your licence cost a little, and growing your revenue does not raise it at all. In Portland the relationship runs the other way.

The Metro tax question, and why your address decides it

Here is where Washington County differs from Multnomah County in a way that produces real confusion.

The Metro Supportive Housing Services tax applies inside the Metro district, which follows the Portland-area urban growth boundary across Multnomah, Washington and Clackamas counties. Multnomah County sits entirely inside it. Washington County does not. Hillsboro is inside the district; some Washington County cities and unincorporated areas sit outside it and are not subject to the tax at all.

So two contractors a few miles apart in the same county can have genuinely different obligations. As with Portland, the business version of the tax applies only above $5 million in gross receipts, so most contractors will not owe it regardless, but if you are near that threshold the boundary question matters. Metro publishes an address lookup tool, and it is worth using rather than assuming.

The Silicon Forest, and what industrial work does to a contractor's program

Hillsboro is the centre of Oregon's semiconductor industry. Intel announced in March 2024 that it planned to invest more than $36 billion in its Hillsboro operations, centred on the Gordon Moore Park campus at Ronler Acres, supported by up to $8.5 billion in federal CHIPS Act funding. Intel is the largest private employer in Oregon and the largest property taxpayer in Washington County.

Announced investment is not the same as work in the ground, and semiconductor capital plans move, so confirm current activity before you plan a year around it. But the structural point holds: Washington County has a concentration of large industrial, cleanroom and data centre work that exists nowhere else in Oregon.

That work changes a contractor's insurance program in ways residential and light commercial never do:

• Higher limits as a baseline. Industrial owners and their general contractors routinely require limits well above the $1 million per occurrence and $2 million aggregate that clears most commercial jobs, with umbrella layered on top.
• Wrap-up programs. Large campus projects frequently run owner-controlled or contractor-controlled insurance programs. If you are enrolled, your own policy needs a credit and your payroll has to be separated at audit. Contractors who ignore this pay for coverage twice.
• Strict certificate compliance. Industrial clients check endorsements rather than reading the certificate and assuming. Additional insured on completed operations, waiver of subrogation, and primary and non-contributory all have to be genuinely endorsed.
• Contractual risk transfer that runs downhill. What the owner requires of the general contractor tends to be pushed to every tier below, so a small specialty sub can face requirements written for a firm many times its size.

The gap that strands people here is not the limit. It is the endorsement. A contractor can carry $2 million and still fail a compliance check because completed operations additional insured was never added.

Permits, and a system change in progress

Hillsboro issues its own building permits through its Permitting Center rather than deferring to Washington County. The city has been migrating its permitting platform, so if you have not filed here recently, check the current portal before you plan a submission around an old login.

The market, in numbers

Hillsboro is the largest city in Washington County, with a population in the low hundred-ten-thousands, inside a county of roughly 611,700. Washington County has been growing faster than the state as a whole, with Hillsboro among the faster-growing cities in it.

For a contractor, the relevant consequence of steady growth plus a large industrial base is a busy subcontractor market, and a busy subcontractor market is where workers compensation audits go wrong. Uninsured subs land on your audit as though they were your payroll. Collect certificates at engagement and again at renewal.

Questions worth asking before you bid a Hillsboro job

• Do I hold a current Hillsboro business licence at the right employee count?
• Is my address inside the Metro district, and does the $5 million threshold apply to me anyway?
• Does the contract require additional insured on completed operations, and is it endorsed rather than just written on the certificate?
• Is this project inside a wrap-up program, and have I taken the credit and separated the payroll?
• Do my umbrella limits actually follow form over the right underlying policies?
• Have I collected a current certificate from every subcontractor?