CostSeg NW is the original Cost Segregation Specialist in the Pacific Northwest

Since 1994, CostSeg Northwest has delivered IRS aligned cost segregation studies that accelerate depreciation, reduce taxable income, and improve cash flow for commercial real estate owners. We are the original Pacific Northwest specialist: engineer led, CPA friendly, and locally accountable.

Why choose CostSeg Northwest

While national firms apply generic models, we focus on accuracy, defensibility, and ROI. Our studies are built to match IRS Cost Segregation Audit Techniques Guide standards for confidence during filing and protection during audit.

What sets us apart

Local site access and direct engineer involvement

CPA ready workpapers for smoother filing

Industry specific methodology for better accuracy

Why cost segregation matters: Faster depreciation, bigger deductions, better cash flow

A cost segregation study breaks your building into components (lighting, finishes, paving, power, etc.). Many of those can be written off much faster than the whole building creating larger deductions earlier and improving cash flow.

✓ Immediate cash flow impact with clear numbers

✓ Local access & accountability (fast site visits, faster answers)

✓ Engineer-led, audit-ready documentation

✓ CPA-friendly workpapers that make filing simple

Audit Ready Documentation Aligned With the IRS Cost Segregation Audit Techniques Guide. IRS+1

Who benefits from a cost segregation study?

Property owners & operating businesses ($3–40M): Multifamily (20+ units), industrial/warehouse, medical/dental, office, hospitality, self-storage, auto dealerships, retail centers.

CPA Firms & Tax Practices: Tax partners/managers who need a study they can file confidently, without big firm pricing or delays.

How to know if you need a cost segregation study

You should consider a cost segregation study if:

You purchased, renovated, or built a property and still own it

You’ve not maximized depreciation because original cost data is missing or unclear

Your accountant lacks the breakdown needed to accelerate depreciation

You want to reduce current tax liability (not just future benefit)

A proper study fixes these issues and unlocks depreciation you’re already entitled to.

Request a Cost Segregation Study

Does cost segregation make sense for your property?

If you own a Seattle area property and you want more cash on hand this year, a cost segregation study can help. We identify the parts of your building that qualify for faster depreciation so you take larger deductions sooner.

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FAQ's

A cost segregation study is a specialized engineering and tax analysis that separates and reclassifies property assets into shorter depreciation categories.

By identifying assets like lighting, flooring, and mechanical systems separately from the building structure, you can accelerate depreciation deductions and significantly reduce taxable income.

Cost segregation is ideal for:

  • Commercial property owners

  • Multi-family real estate investors

  • Industrial facility owners

  • Residential rental property owners

  • Developers and builders

If you own a property valued at $500,000 or more, a cost segregation study could unlock substantial tax savings and cash flow increases.

At CostSeg Northwest, our typical study timeline is:

  • 2–4 weeks for existing buildings

  • 4–6 weeks for large or highly complex new construction

We handle coordination directly with your contractor and CPA to streamline the process.

Properties that typically see the greatest ROI from cost segregation include:

  • Office buildings

  • Apartment complexes

  • Industrial facilities

  • Retail centers

  • Hotels and resorts

  • Medical offices

  • Manufacturing plants

  • Warehouses and distribution centers

Almost any income-producing property qualifies for accelerated depreciation.

Yes. Even if you purchased a property up to 15 years ago, you may be eligible for a look-back study.

Through the IRS’s automatic Form 3115 change, you can catch up missed depreciation without amending prior returns — delivering a major cash flow boost in the current year.

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