100% Bonus Depreciation Is Back — Act Before Congress Changes Its Mind

Unlock Accelerated Depreciation
for Your Fourplex

Engineering-based cost segregation for fourplex investors — reclassify building components into 5, 7, and 15-year categories. CPA-ready reports delivered in under 1 hour.

Get Your Estimate →
19–26%
Avg. Basis Reclassified
18x
Avg. ROI
<1 Hour
Report Delivery
$995
Starting Price

Estimate Your Tax Savings

Estimated Year 1 Accelerated Deductions
$0
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Real Results: $890K Fourplex in Charlotte, NC

How a Charlotte fourplex investor accelerated $135,300 in year-one deductions — backed by data, delivered fast.

Fourplex investment property
PropertyFourplex (4 Units) — Charlotte, NC
Purchase Price$890,000
Year Built2012
Study TierFourplex (starting at $995)

This investor elected our fourplex cost segregation study. The study reclassified building components including per-unit finishes, shared mechanical systems, and site improvements across all four units — resulting in over $135,000 in first-year accelerated depreciation deductions.

Total Accelerated (Year 1)
$135,300
beyond straight-line depreciation
$50,061
Est. Tax Impact (37%)
50x
ROI on Study Cost
19.0%
Basis Reclassified
Per-Unit
Per-Unit Analysis

What's in Your Study

Engineering-based analysis aligned with the IRS Cost Segregation Audit Techniques Guide.

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Component-Level Analysis

Every building system classified by IRS asset life (5yr, 7yr, 15yr, 27.5yr)

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MACRS Depreciation Schedules

Full schedules your CPA can use immediately — no additional formatting needed

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Bonus Depreciation Modeling

100% bonus depreciation applied to maximize first-year deductions

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IRS ATG Compliance

Methodology aligned with the IRS Audit Techniques Guide for cost segregation

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Per-Unit Component Analysis

Separate schedule for each unit's finishes, fixtures, and shared building systems

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CPA-Ready PDF Report

Professional report delivered to your inbox in under 1 hour

Why Per-Unit Finishes Matter for Fourplex Investors

Per-unit finishes and shared building components are the biggest missed depreciation opportunity for fourplex owners.

Appliances, flooring, cabinetry, plumbing fixtures, and individual unit finishes across all four units are 5 and 15-year depreciable property — not part of the 27.5-year building. Most standard depreciation schedules treat everything as one bucket.

With bonus depreciation, eligible per-unit and site components can be deducted in Year 1 — turning your property improvements into immediate deductions.

Fourplex properties typically have $30K–$80K+ in shorter-life components across all four units.
Without cost segregation, those deductions are spread over 27.5 years instead of taken in Year 1.

Categories We Identify

5yrAppliances & In-Unit Equipment
5yrCarpeting & Vinyl Flooring
5yrWindow Treatments & Blinds
5yrCabinetry & Countertops
15yrParking Lots & Walkways
15yrLandscaping & Exterior Lighting
7yrLaundry Equipment & Specialty Fixtures

Fourplex Pricing. No Surprises.

Every study includes CPA-ready documentation prepared in accordance with IRS guidelines.

FOURPLEX
Fourplex
Starting at $995/study
$995–$1,695 based on purchase price
  • Engineering-based cost segregation study
  • 5-year + 15-year reclassification
  • Per-unit component analysis
  • 100% bonus depreciation modeling
  • MACRS schedules + NPV analysis
  • CPA-ready PDF report
  • Delivered in under 1 hour

Use code TAXDAY2026 at checkout for 10% off. Offer ends April 15th.

Frequently Asked Questions

Cost segregation is an IRS-recognized depreciation method that reclassifies portions of your property into shorter depreciation categories (5, 7, and 15 years instead of 27.5). For fourplex investors, this means accelerating tens of thousands of dollars in deductions into the early years of ownership — reducing your taxable income significantly.
Components that qualify include appliances and in-unit equipment across all four units, carpeting and flooring, window treatments, cabinetry, countertops, plumbing fixtures, exterior lighting, landscaping, parking areas, and walkways. These are classified as 5, 7, or 15-year property — not part of the 27.5-year building structure — and can be depreciated on an accelerated schedule.
No. Cost Seg Smart is a professional cost segregation study provider. Our engineering-based methodology follows the IRS Cost Segregation Audit Techniques Guide. You receive a complete, CPA-ready PDF report — not a template or DIY tool. Each study includes component-level analysis, IRS asset class citations, MACRS schedules, and supporting engineering narratives.
Just the basics: property address, purchase price, square footage, and year built. Our intake form takes about 5 minutes. No site visit required. Photos and documents (closing statement, tax assessment) are optional but can improve accuracy.
Studies are delivered in under 1 hour as a CPA-ready PDF sent to your email. Your CPA can use it directly — no additional formatting needed.
Yes. If you didn't do cost segregation when you bought the property, you can file a Form 3115 (Change in Accounting Method) to catch up on missed depreciation — without amending prior returns. The full catch-up amount is taken in a single year.
Yes. Our methodology follows the IRS Cost Segregation Audit Techniques Guide. Each study includes component-level analysis, IRS asset class citations, and supporting engineering narratives. We recommend all clients work with their CPA when filing.

100% Bonus Depreciation Is Back.
Don't Wait for Congress to Change Its Mind.

Unlock accelerated depreciation for your fourplex — backed by data, delivered fast. Studies start at $995.

Order Your Study →

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