Your rental’s biggest tax break, delivered in 2 business days.
IRS-compliant, audit-supported cost segregation studies. $899 flat.
Engineering-based approach, aligned with the IRS guide
5-star reviews, on video
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.
Engineering-Based Analysis, Expert Reviewed
Components in the 5-, 7-, and 15-year buckets depreciate far faster than the 27.5-year building.
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.
What our customers say
Reports vetted by CPA firms
"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."
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."
John Allison
CPA, CFO
"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."
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."
Michael C.
CPA/Financial Professional
"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."
John D.
Real Estate Investor
Move your deductions to year one.
Standard depreciation spreads your write-off evenly across 27.5 years. Cost segregation reclassifies parts of the property into 5-, 7-, and 15-year buckets, pulling a large share of the deduction into the first year.
The numbers to the right come from a real study we delivered: a $256,880 single-family rental, details redacted.
Why property owners choose us
Residential and short-term-rental specialization, with one standard for every study: clear documentation, real support, and speed.
Vetted by CPA firms
Many CPA partners have put this exact report through their own review before recommending it. Some now deliver it under their own brand.
Delivered in 2 business days
From complete submission to finished report in 2 business days, fully remote, with nothing to schedule. Built for tax deadlines, not engineering-firm queues.
Audit support included
Every study is expert-reviewed before delivery. If your depreciation is ever questioned, we provide the documentation and respond to the inquiry at no extra charge.
Real human support
Real specialists answer your questions in plain English, before you pay and after you file. Try us.
One flat fee: $899
Traditional firms charge $5,000 or more, which priced most residential owners out. Same engineering-based approach, at a price that makes sense for a rental.
Your only job is forwarding an email
When the report arrives, send it to whoever does your taxes. The schedules and supporting documentation are organized so your tax preparer can review the work efficiently.
Get Your Property-Specific Estimate
Search your property, unlock the instant estimate with your email, and compare land value, acceleration percentage, and projected first-year savings.
Your Path to a Powerful Deduction
Complete the process in under an hour with our guided platform.
Upload Appraisal
Simply provide your property appraisal or photos and enter the brief form information. We do the rest. No special knowledge required.
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.
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.
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 |
Included
|
Limited detail |
Included
|
| No Appointments Needed |
Fully remote
|
Usually remote
|
Site visit required
|
| No Hidden Fees |
$899 flat fee
|
Upsells common
|
Custom quotes
|
| Audit Support Included |
Included
|
Rarely offered
|
Extra cost
|
| Turnaround in Under 2 Days |
2 business days
|
Varies |
4–6 weeks
|
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.
Flat fee per property
Your result depends on the property, depreciable basis, and tax situation.
What's Included:
From the Blog
Practical guides on cost segregation, depreciation, and tax strategy for rental property owners.
How RentalWriteOff Works: An Engineering-Based Approach to Cost Segregation
Here's exactly how our engineering-based approach works, what happens from submission to delivery, and what makes our reports audit-ready.
Read More →
Cost Segregation for Short-Term Rentals: The Airbnb Tax Strategy
Short-term rentals are one of the strongest cost segregation candidates in real estate. Here's why Airbnb and VRBO hosts stand to save the most.
Read More →
100% Bonus Depreciation Is Back for 2026: What It Means for Rental Owners
100% bonus depreciation is back for qualifying property acquired after January 19, 2025. Here's what that means for your cost segregation study.
Read More →
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 team 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. A look-back study provides everything your CPA or tax software needs to file IRS Form 3115 and 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. RentalWriteOff does not file Form 3115; we provide the supporting report.
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 (the IRS depreciation system that assigns each asset its recovery period). Each study includes audit support: 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 (the tax you pay back on prior depreciation when you sell) applies at sale, 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 by rolling proceeds into a like-kind replacement property.
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 prepare Form 3115 for a look-back study). RentalWriteOff does not prepare or file tax returns; we provide the engineering-based report. If you don't have a CPA, we can connect you with one.
Contact Us
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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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