Decoupled from §168(k)
Hawaii Requires Bonus Depreciation Addback
11% Top Individual · 4.4–6.4% Graduated Corporate
Highest Top Individual Rate in U.S.
22–35% Typical Reclassification
Hawaii Building Value into Short-Life Assets
All Commercial Asset Classes
Statewide Hawaii
The Basics
What Cost Segregation Does for Hawaii 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 Hawaii, 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 Hawaii properties in full. State-level treatment is where Hawaii is different: Hawaii has long decoupled from federal §168(k) bonus depreciation (Haw. Rev. Stat. §235-2.4(m)). Federal bonus depreciation must be added back on the Hawaii return, and property depreciates via regular MACRS on the state return. The state benefit from a cost seg study still exists, reclassification to shorter MACRS lives, but there’s no state-level bonus stacking.
Federal Deduction Amplified by Hawaii’s High Top Rate
Hawaii’s Tax Landscape: Why Cost Segregation Matters Here
Individual Income Tax
Graduated 1.4% to 11.0% top rate, the highest top individual rate in the country. High-earning owners feel every federal deduction sharply given the combined federal + Hawaii effective rate.
Corporate Income Tax
Graduated 4.4% to 6.4% depending on taxable income (Haw. Rev. Stat. §235-71).
General Excise Tax (GET)
Hawaii uses a 4% GET on nearly all business activities (with local surcharges up to 0.5%) instead of a traditional sales tax. GET is separate from income tax and unaffected by cost segregation.
Bonus Depreciation Conformity
Decoupled. Hawaii has long disallowed federal §168(k) bonus depreciation (Haw. Rev. Stat. §235-2.4(m)); property depreciates via regular MACRS on the Hawaii return. Federal Year 1 benefit is preserved.
§179 Expensing
Hawaii’s §179 conformity is more limited than federal. [VERIFY current Hawaii §179 cap with client’s CPA, Hawaii historically caps below federal amounts.]
Property Tax
~0.28% effective on owner-occupied housing (Tax Foundation 2026), the lowest rate in the country. Note: Hawaii applies significantly different rates for non-owner-occupied and short-term-rental property, which affects commercial and investment residential owners. Property tax is a separate lever from income tax.
§481(a) Catch-Up
For Hawaii 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 Hawaii
Hawaii Property Types Where Cost Segregation Delivers
Hospitality & Resort
Waikiki, Ka’anapali (Maui), Wailea, Kona, Kauai’s Poipu and Princeville, and Big Island resort corridors run some of the highest-value FF&E and interior improvement content in the country. Multiple flag brands and independent resorts across all islands.
Investment Residential & Short-Term Rental
Multi-unit investment residential across O’ahu, Maui, Kauai, and the Big Island. Note: Maui County has restricted short-term rentals in some apartment zones (2026 legislation); confirm zoning before scoping.
Aerospace & Defense
Pearl Harbor–adjacent defense contracting and shipyard operations, plus Kauai’s Pacific Missile Range Facility support facilities.
Agriculture & Specialty Operations
Coffee (Kona, Ka’u), macadamia, tropical fruit, aquaculture, and specialty ag processing across the islands.
Retail & Mixed-Use
Ala Moana, Waikiki retail, Whalers Village, and mixed-use developments in urban corridors.
Healthcare & Medical Office
Queen’s, Kaiser Permanente, and Straub healthcare corridors on O’ahu; regional facilities on neighbor islands.
Office & Commercial
Downtown Honolulu Class A office and business services corridors.
Renewable Energy Infrastructure
Hawaii’s aggressive renewable energy commitments have produced solar, wind, and battery storage installations with specialized reclassification content.
Not sure whether your Hawaii 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 Hawaii 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 maintain the separate Hawaii MACRS schedule.
Single-Property to Multi-State Portfolios
Whether you own one Hawaii commercial building or a portfolio spanning multiple states, we scale the engagement to fit. Common for hospitality operators with multiple properties across the islands.
Real Numbers
What First-Year Savings Might Look Like in Hawaii
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 Hawaii specifically, the federal Year 1 savings apply fully, and given Hawaii’s 11% top individual rate, high-earning owners typically see outsized federal-plus-state combined benefit even with the state’s bonus-depreciation decoupling. The Hawaii state benefit is spread across the useful life of the reclassified components under regular MACRS.
Get Started
Free Hawaii Cost Segregation Benefit Analysis
Tell us about your Hawaii 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 + Hawaii state-timing considerations
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Clear read on the study’s projected ROI
Prefer to talk? Call us directly:
(713) 688-7733
The Ambrose Group headquarters, Jersey Village, TX (serving Hawaii and all 50 states).
Request Your Free Analysis
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How It Works, Hawaii & Nationwide
Our Cost Segregation Process
What Clients Say
See why property owners, investors, and CPAs have trusted The Ambrose Group for 30+ years. Read client reviews.
Cost Segregation in Hawaii
Frequently Asked Questions
Does Hawaii conform to federal bonus depreciation rules?
No. Hawaii has long decoupled from federal §168(k) bonus depreciation (Haw. Rev. Stat. §235-2.4(m)). Federal bonus depreciation must be added back on the Hawaii return; property depreciates via regular MACRS. Your federal Year 1 tax savings from a cost segregation study are fully preserved.
How does Hawaii’s high state income tax interact with a cost segregation study?
Hawaii’s top individual income tax rate reaches 11%, the highest in the country. The corporate rate is graduated from 4.4% to 6.4%. Because Hawaii decouples from federal bonus depreciation, the state-level Year 1 benefit is limited relative to conformity states. However, the reclassified MACRS depreciation still reduces Hawaii taxable income faster than the default 39-year or 27.5-year schedule, and given Hawaii’s high state marginal rates, that acceleration meaningfully moves the needle.
What Hawaii commercial property types benefit most from cost segregation?
Hospitality and resort property (Waikiki, Ka’anapali, Wailea, Kona, Kauai), multi-unit investment residential, aerospace/defense support (Pearl Harbor–adjacent), retail and mixed-use, and renewable energy infrastructure. Hospitality typically delivers the strongest results given Hawaii’s tourism-driven economy and heavy FF&E content.
Can I do a cost segregation study on a Hawaii property I’ve owned for years?
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. Especially valuable for long-held Hawaii resort and multi-unit residential properties.
How do you do a cost segregation study on a Hawaii property when you’re based in Texas?
Cost segregation is governed by federal tax law, so the methodology is identical regardless of state. For Hawaii properties, our engineer works either through an in-person site visit or, for well-documented properties, a virtual site inspection using high-definition video, construction documents, and interactive tools. Both are IRS-compliant. Given Hawaii’s geography, virtual site visits are especially efficient for portfolio-level engagements.
What construction era of Hawaii 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. Hawaii’s resort renovations and new multifamily development in Honolulu produce a steady universe of newer property in the ideal window.
Does Hawaii’s property tax rate affect the cost seg decision?
Not directly. Cost segregation reduces income tax through accelerated depreciation, not property tax. Hawaii’s owner-occupied effective property tax rate is around 0.28% (Tax Foundation 2026), the lowest in the country, but Hawaii applies significantly different rates for non-owner-occupied and short-term rental property, which affects commercial and investment residential owners. Property tax is a separate lever from the income-tax benefit cost segregation delivers.
What documentation do you need for a Hawaii cost segregation study?
Purchase or construction cost documentation, a current depreciation schedule from your CPA, construction plans or specs (when available), any prior appraisals, and, for renovation studies, improvement records. Because Hawaii decouples from federal bonus depreciation, your CPA will need the detailed asset schedule to maintain the Hawaii MACRS calculation. We provide it as part of the standard deliverable.
Can you handle Hawaii multi-property portfolios?
Yes. We regularly run cost segregation studies across multi-state and Hawaii-only portfolios. Common for hospitality operators with multiple resort properties across the islands and multi-unit residential portfolio owners.
How long does a cost segregation study take on a Hawaii property?
From engagement to CPA-ready report, most studies run 4–8 weeks depending on property complexity, document availability, and site-visit scheduling. Complex resort and hospitality properties can take longer proportional to the FF&E and interior-improvement cataloging effort.
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Talk to Trusted Cost Segregation Consultants
We live by our motto: “Everything we do is driven by the relationship, not the transaction”, and we mean it. Whether you have a Hawaii property to evaluate or a multi-state portfolio to review, we’re here to help. Contact our real estate firm.