IRS-Compliant, Audit‑Protected
Cost Segregation Studies.

No Appointments.
No Surprise Fees.

Cost segregation is now fast and affordable for residential rentals - and every report comes with audit protection.

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Why RentalWriteOff?

We've simplified cost segregation to make it accessible to every rental property owner.

Fast Reports

Get your report within 48 hours, no more waiting days or weeks.

Audit Protection

Audit-ready documentation and methodology aligned with IRS guidance, plus audit support, for peace of mind.

Lower Cost

Our platform prepares your cost segregation report at a fraction of the cost of other providers, with a final quality check before every delivery.

Free Tax Savings Calculator

See Your Potential Tax Savings

Use our free calculator to estimate how much you could save with a cost segregation study for your residential rental. Our reports include audit-ready documentation.

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Your Path to a Powerful Deduction

Complete the process in under an hour with our guided platform.

1

Upload Appraisal

Simply provide your property appraisal or photos and enter the brief form information. We do the rest. No special knowledge required.

2

Analysis

This is where the magic happens. Our team analyzes your data, identifies hundreds of components, and prepares the valuation inputs. Every report includes a final quality check before delivery.

3

Finalize and File

We conduct an expert review and email you your comprehensive cost segregation study within 1 to 2 business days, ready to provide to your accountant or use when filing your taxes.

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How We Compare

See why RentalWriteOff is the smart choice for cost segregation

Feature
RentalWriteOff Our Solution
Low-Cost Competitors Budget Options
High-Cost Engineering Firms Traditional Approach
Full IRS-Compliant Reports
Limited detail
No Appointments Needed
No Hidden Fees
Audit Protection Included
Extra cost
Turnaround in Under 2 Days
Varies
4–6 weeks
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What Our Customers Say

"I was skeptical at first, but RentalWriteOff delivered a comprehensive cost segregation report so quickly. The process was incredibly fast and much cheaper than the traditional firms I've used. I just saved over $15,000 in taxes on a single rental property. This is a game-changer for investors."

JD

John D.

Real Estate Investor

"As a short-term rental host, maximizing deductions is critical. I found RentalWriteOff through an online forum and it was brilliant. The service was easy, and I got my audit-grade report the next day. Highly recommend for anyone in the STR space looking to lower their tax bill."

SM

Sarah M.

Short-Term Rental Host

"The speed and accuracy of the reports from RentalWriteOff are impressive. This tool allows me to offer cost segregation services to clients who were previously priced out by high fees. It's an IRS-compliant solution that saves my clients money and saves me time. The platform is a must-have for any modern accounting practice."

MC

Michael C.

CPA/Financial Professional

"As a tax professional, I trust RentalWriteOff for fast, accurate, and IRS-compliant cost segregation reports. They help rental property owners unlock thousands in tax savings by accelerating depreciation deductions."

MS

Mike Schulz

CPA, MBA

"As a tax professional, I find RentalWriteOff's website fast and easy to use with straightforward explanations. Their reports are supported by detailed and proper documentation, which is crucial for IRS scrutiny. In my professional opinion, these reports meet all IRS compliance requirements and would stand up in an IRS audit. I recommend RentalWriteOff for anyone considering a cost segregation study."

JA

John Allison

CPA, CFO

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Built on Official IRS Guidelines

Our methodology is built on the official IRS Cost Segregation Audit Techniques Guide. Each report includes a final quality check before delivery, so your study meets the standard auditors expect.

Sample cost segregation report cover
$500,000 Property Value
$90,000 Depreciation You Can Claim
$40,000+ Cash Back in Your Pocket

Engineering-Based Analysis, Expert Reviewed

Smart Itemization

Our team analyzes your photos and data to identify components eligible for accelerated depreciation, from flooring and fixtures to fences and driveways, and reviews the classifications before your report is finalized.

Defensible Pricing & Classification

Our team prepares defensible values and asset classes (5, 7, or 15-year property) for each component and reviews the final allocations.

Audit-Ready Documentation

Receive a detailed final report that includes all the necessary schedules, statements, and methodologies required to be compliant with IRS standards.

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Get Your Complete Study

Everything you need for maximum tax savings on your residential rental, delivered with audit-ready documentation. No hidden fees, no surprises.

$799 One-Time Payment

Flat fee per property

Average tax savings: $25,000-$75,000 depending on the property.

What's Included:

Smart Report & Itemization
Comprehensive Schedules & Documentation
Audit Protection
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Frequently Asked Questions

Common questions from property owners about cost segregation studies.

What is a cost segregation study?

A cost segregation study is an engineering-based analysis that identifies components of your rental property that can be depreciated faster than the standard 27.5 years. Items like flooring, cabinetry, appliances, landscaping, and certain plumbing and electrical components can be reclassified into 5-, 7-, or 15-year recovery periods—giving you significantly larger tax deductions in the early years of ownership.

What property types qualify?

We support residential rental properties up to 4 units: single-family homes, condos, townhouses, duplexes, triplexes, fourplexes, short-term rentals (Airbnb/VRBO), and mobile homes. The property must be used for rental or business purposes—not a personal residence.

What documents and info do I need to provide?

You'll need a few key items to get the most accurate study:

  • Property address — so we can pull public records, tax assessments, and satellite imagery.
  • Purchase price & closing date — determines your cost basis and placed-in-service date, which drive the depreciation schedule.
  • Interior & exterior photos — the single most impactful thing you can provide. Clear photos of each room, flooring types, countertops, fixtures, cabinetry, landscaping, driveways, and any upgrades let our engineers accurately classify higher-value short-life assets instead of grouping them into the 27.5-year bucket. More detail = more reclassifiable value = bigger deductions.
  • Appraisal or inspection report (if available) — these often contain detailed photos and property descriptions that strengthen the study. Not required, but very helpful.
  • Renovation or improvement details — if you've done upgrades (new kitchen, flooring, HVAC, etc.), let us know the approximate cost and date. These may qualify for accelerated depreciation on their own.

Bottom line: the more detail you give us about what's physically in and around the property, the more we can reclassify into shorter recovery periods—and the larger your tax deduction.

I bought my property years ago—can I still benefit?

Yes. Through a "look-back" study and IRS Form 3115, you can claim all the accelerated depreciation you missed in previous years as a single catch-up deduction on this year's tax return. No need to amend prior returns.

How long does it take?

The intake takes about 5 minutes. Completed reports are delivered within 2 business days after submission and payment.

Is this IRS-compliant? Will it hold up in an audit?

Yes. Every report follows IRS guidelines and MACRS classification rules. Each study includes audit protection—if you're audited, we provide supporting documentation and respond to inquiries from the taxing authority regarding our methodology and calculations.

What about depreciation recapture when I sell?

Depreciation recapture applies when you sell, but the upfront tax savings typically outweigh recapture when you factor in the time value of money. Many investors also use 1031 exchanges to defer both capital gains and recapture indefinitely.

Do I need to be on-site or schedule a visit?

No. Our process is fully remote. We use the photos and documentation you provide, combined with public records and satellite imagery. No site visit required.

What do I do with the report once I get it?

Send the completed report to your CPA or tax preparer. It includes the reclassified asset schedules and supporting documentation they need to update your depreciation on Form 4562 (or file Form 3115 for a look-back study). If you don't have a CPA, we can connect you with one.

Contact Us

Have questions? We're here to help you maximize your rental property tax savings.

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Phone

307-271-8741

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Stop Leaving Money on the Table

Every year, landlords overpay on taxes by not taking advantage of accelerated depreciation. In under an hour, you can secure the documentation you need to potentially save thousands.

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