Newly Decoupled from §168(k) Effective Jan 1, 2026 (SB 1507)
Federal Deduction Amplified by High Rates
9.9% Top Individual + Local (Portland) · 7.6% Top Corporate + CAT
High Combined Rate Structure
22–35% Typical Reclassification
Oregon Building Value into Short-Life Assets
All Commercial Asset Classes
Statewide Oregon
The Basics
What Cost Segregation Does for Oregon Property Owners
A cost segregation study identifies building components HVAC systems, specialty flooring, parking surfaces, interior finishes, exterior lighting that qualify for accelerated depreciation on 5-, 7-, or 15-year schedules rather than the default 27.5-year (residential rental) or 39-year (commercial) building schedule. Front-loading those deductions increases first-year cash flow and lowers current-year federal taxable income.
In Oregon, the federal benefit works the same way it does anywhere the One Big Beautiful Bill (OBBBA, P.L. 119-21) permanently restored 100% bonus depreciation for qualified property placed in service after January 19, 2025, and that federal benefit applies to Oregon properties in full. State-level treatment is where Oregon is different, and it changed on January 1, 2026. Under Oregon SB 1507 (signed April 9, 2026), Oregon decouples from federal §168(k) bonus depreciation for property placed in service in tax years beginning on or after January 1, 2026. Federal bonus depreciation must be added back on the Oregon return, then deducted over the property’s useful life via regular MACRS. Note: Oregon does not decouple from federal §168(n) qualified production property the special OBBBA depreciation for qualified production property continues to flow through to Oregon. Oregon has long required addback of federal §179 expensing under ORS 316.707.
One of the Country’s Highest Combined Income Tax Rate Structures
Oregon’s Tax Landscape: Why Cost Segregation Matters Here
Individual Income Tax
Graduated from 4.75% to 9.9% top marginal rate among the highest state individual income tax rates in the country. Portland-area residents also pay additional local income taxes: Portland Metro Business Income Tax (~1% for high earners), Multnomah County Preschool for All (up to 3%), and Portland Arts Tax.
Corporate Income Tax
6.6% on Oregon taxable income up to $1M; 7.6% above $1M.
Corporate Activity Tax (CAT)
Oregon imposes CAT on commercial activity (gross receipts) exceeding $1M flat $250 minimum plus 0.57% of commercial activity above $1M. Applies to gross receipts, not income not affected by depreciation deductions.
Bonus Depreciation Conformity
Newly decoupled from §168(k) effective for property placed in service in tax years beginning on or after January 1, 2026 (SB 1507, signed April 9, 2026). Property placed in service before 2026 followed prior Oregon rolling conformity rules. §168(n) qualified production property continues to be conformed.
§179 Expensing
Oregon has long required addback of federal §179 expense under ORS 316.707. Assets subject to §179 addback depreciate as otherwise provided under Oregon law.
PTE (Pass-Through Entity Tax)
Oregon extended its PTET election under SB 1510 (signed March 31, 2026) federal SALT-cap workaround for pass-throughs.
NCTI (Formerly GILTI)
Oregon’s SB 1510 updates NCTI treatment to conform to OBBBA’s terminology; NCTI remains eligible for Oregon’s dividends-received deduction.
No State Sales Tax
Oregon is one of five states with no state sales tax.
Property Tax
~0.86% effective on owner-occupied housing. Oregon imposes limits on property tax growth via Measure 5 and Measure 50. A separate lever from income tax.
§481(a) Catch-Up
For Oregon properties owned more than a year without a study, an automatic accounting-method change (Form 3115 under Rev. Proc. 2015-13 and its updates) captures all missed depreciation into the current tax year at the federal level no amended returns required.
Every Commercial Asset Class in Oregon
Oregon Property Types Where Cost Segregation Delivers
Semiconductor & Advanced Manufacturing
Intel Hillsboro is one of Intel’s largest R&D and fab operations in the country. Semiconductor supplier ecosystem across the Silicon Forest (Hillsboro, Beaverton corridor).
Tech & Corporate Services
Nike (Beaverton HQ), Columbia Sportswear, Precision Castparts, plus Portland tech and creative operations.
Multifamily
Portland metro multifamily (particularly Pearl District, Northwest District, Northeast Portland, and inner Southeast), plus Beaverton, Hillsboro, Salem, Eugene, and rapidly growing Bend markets. Portland’s inclusionary housing rules affect certain new multifamily.
Hospitality & Tourism
Bend/Central Oregon destination hospitality, Oregon Coast, Columbia River Gorge, Willamette Valley wine country, plus Portland business travel. Heavy FF&E in destination hospitality.
Healthcare & Medical Office
OHSU (Oregon Health & Science University), Providence Health, Kaiser Permanente, Legacy Health corridors across Portland metro and statewide.
Agriculture & Food Processing
Wine industry (Willamette Valley, Rogue Valley, Umpqua Valley), hop production (Willamette Valley), tree fruit, plus specialty food processing.
Timber & Forest Products
Weyerhaeuser and specialty timber operations across Oregon.
Port & Logistics
Port of Portland (Terminal 6, PDX air cargo), Coos Bay port operations, plus statewide logistics.
Data Centers
Central Oregon (Prineville Apple, Facebook/Meta), plus Hillsboro. Specialty electrical and cooling infrastructure.
Retail & Mixed-Use
Portland-metro retail centers plus mixed-use developments. No state sales tax makes Oregon a cross-border shopping destination.
Investment Residential
5+ unit properties eligible for cost segregation.
Not sure whether your Oregon property qualifies? Request a free benefit analysis we’ll tell you honestly.
Credentialed. Independent. Nationwide.
Why The Ambrose Group?
MAI-Certified Appraisers, In-House Engineer
The IRS prefers engineering-based studies over rule-of-thumb estimates. Our in-house engineer conducts the analysis, reviews construction documents, and physically identifies reclassifiable components. Many providers estimate; we don’t.
IRS-Compliant Methodology
Every Ambrose study follows the IRS Cost Segregation Audit Techniques Guide (ATG, Publication 5653).
30+ Years of Nationwide Experience
Headquartered in Texas, serving Oregon and all 50 states.
Full Audit Support
Every study includes documentation and audit support at no additional charge.
CPA-Ready Reports
We deliver a complete reclassification package your CPA can apply directly, including the depreciation detail your CPA needs to file the Oregon SB 1507 §168(k) addback (for 2026+ property) and manage §179 addback under ORS 316.707.
Single-Property to Multi-State Portfolios
Whether you own one Oregon commercial building or a portfolio spanning multiple states, we scale the engagement to fit.
Real Numbers
What First-Year Savings Might Look Like in Oregon
Results depend on property type, cost basis, construction year, and applicable depreciation rates and we run a free benefit analysis before you commit to a study so you can see projected numbers first.
As a reference point, an Ambrose Group engagement on a $2.9M commercial property delivered $657,692 in first-year depreciation increase and $230,192 in first-year tax savings. In Oregon specifically, the federal Year 1 savings apply fully; the Oregon state benefit for property placed in service in 2026+ is spread across the useful life of the reclassified components under regular MACRS (no state-level bonus stacking on §168(k) property). Property placed in service in 2025 and earlier followed prior Oregon rolling-conformity rules. Given Oregon’s 9.9% top individual rate plus Portland-area local taxes and 7.6% top corporate rate, the federal deduction still delivers substantial effective value when applied against high state marginal rates.
Get Started
Free Oregon Cost Segregation Benefit Analysis
Tell us about your Oregon property asset type, acquisition or construction cost, when it was placed in service and we’ll run a free benefit analysis showing projected first-year depreciation and tax savings before you commit to a study.
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Right approach for your property type
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Federal benefit modeled + Oregon SB 1507 timing considerations
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Clear read on the study’s projected ROI
Prefer to talk?
(713) 688-7733
The Ambrose Group headquarters, Jersey Village, TX (serving Oregon and all 50 states).
How It Works Oregon & Nationwide
Our Cost Segregation Process
What Clients Say
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Cost Segregation in Oregon
Frequently Asked Questions
Does Oregon conform to federal bonus depreciation rules?
Not anymore. Under Oregon SB 1507 (signed April 9, 2026), Oregon decouples from federal §168(k) bonus depreciation for property placed in service in tax years beginning on or after January 1, 2026. Federal bonus depreciation must be added back on the Oregon return; property depreciates via regular MACRS on the state return. Note: Oregon does not decouple from federal §168(n) qualified production property that provision continues to conform. Your federal Year 1 tax savings from a cost segregation study are fully preserved.
What is Oregon SB 1507 and why does it affect cost segregation?
SB 1507 (signed April 9, 2026) advances Oregon’s IRC conformity date from December 31, 2023 to December 31, 2025 and decouples Oregon from federal §168(k) bonus depreciation for property placed in service in tax years beginning January 1, 2026 or later. Oregon was the second state to decouple from OBBBA’s permanent 100% bonus depreciation.
How does Oregon’s income tax structure interact with a cost segregation study?
Oregon has one of the highest combined income tax structures in the country. Individual income tax tops at 9.9% state rate. Portland-area residents also pay Metro Business Income Tax (up to ~1% for high earners), Multnomah County Preschool for All (up to 3%), and Portland Arts Tax. Corporate income tax is 6.6% up to $1M / 7.6% above $1M, plus the Corporate Activity Tax on commercial activity above $1M. Because Oregon decouples from §168(k), the federal Year 1 benefit is where most of the study’s economics live but Oregon’s high combined rates make the federal deduction highly valuable.
What about Oregon’s §179 expensing?
Oregon has long required addback of federal §179 expense under ORS 316.707. Assets subject to §179 addback depreciate as otherwise provided under Oregon law. This is a long-standing Oregon rule (unaffected by SB 1507).
What Oregon commercial property types benefit most from cost segregation?
Intel Hillsboro semiconductor operations (Silicon Forest), Nike/Columbia Sportswear/Precision Castparts corporate operations, Portland-metro multifamily, Central Oregon data centers (Prineville Apple, Meta), Willamette Valley wine and specialty ag processing, and Bend destination hospitality. Semiconductor operations typically produce the strongest results due to heavy specialty equipment content.
Can I do a cost segregation study on an Oregon property I’ve owned for years?
Yes. A §481(a) adjustment via an automatic accounting-method change (Form 3115 under Rev. Proc. 2015-13 and its updates) lets you capture all missed depreciation from prior years into the current tax year without amending past returns. Property placed in service before 2026 followed prior Oregon rolling-conformity rules. Especially valuable for long-held Oregon semiconductor, Portland-metro multifamily, and destination hospitality properties.
How do you do a cost segregation study on an Oregon property when you’re based in Texas?
Cost segregation is governed by federal tax law, so the methodology is identical regardless of state. Our engineer works either through an in-person Oregon site visit or, for well-documented properties, a virtual site inspection using high-definition video, construction documents, and interactive tools. Both are IRS-compliant.
What construction era of Oregon property produces the strongest cost segregation outcomes?
Properties placed in service since 1987 are eligible under current IRS guidance, and studies limited to the last 7–10 years tend to deliver the strongest ROI. Intel Hillsboro expansion, Central Oregon data center buildout, and Portland-metro multifamily development have produced substantial newer commercial property in the ideal window.
Does Oregon’s lack of sales tax affect the cost seg decision?
Not directly for income-tax benefits. Cost segregation reduces income tax through accelerated depreciation. Oregon’s no-sales-tax status reduces the cost of acquiring construction materials and business equipment but that’s a separate lever from cost segregation.
Can you handle Oregon multi-property portfolios? How long does a study take?
Yes, we regularly run cost segregation studies across multi-state and Oregon-only portfolios. Common for Silicon Forest tech operators with multiple facilities, Portland-metro multifamily portfolios, and Willamette Valley wine and agricultural operators. Typical study timeline is 4–8 weeks per property; complex semiconductor and data center facilities take longer proportional to the specialty-equipment cataloging effort.
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We live by our motto: “Everything we do is driven by the relationship, not the transaction” and we mean it. Whether you have an Oregon property to evaluate or a multi-state portfolio to review, we’re here to help. Contact our real estate firm.