IRS-Compliant
Cost Segregation Studies.
No Appointments.
No Surprise Fees.
Cost segregation is now fast and affordable for single-family rentals. With 3 easy steps you can unlock thousands in potential tax savings.
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-Grade Accuracy
IRS-compliant methodology ensures your deductions stand up to scrutiny
Lower Cost
Our proprietary software allows us to prepare your cost segregation report at a fraction of the cost of other providers.
See Your Potential Tax Savings
Use our free calculator to estimate how much you could save with a cost segregation study for your single family rental.
Ready to Get Your Official Report?
The calculator shows estimates. Get your detailed, IRS-compliant cost segregation study to see your actual tax savings.
Start Your Cost Segregation StudyWhat Our Customers Say
Real testimonials from property owners who've unlocked significant tax savings
"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
"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
Built on Official IRS Guidelines
Our proprietary software isn't just smart—it's compliant. It has been meticulously developed using the methodology outlined in the official IRS Cost Segregation Audit Techniques Guide. This ensures your report is built to the standard that auditors themselves use, giving you confidence and peace of mind.
View a Sample Report
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.
Smart Analysis
This is where the magic happens. Our proprietary software analyzes your data, identifies hundreds of components, assigns values, and performs all the complex calculations automatically.
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.
Proprietary Software That Does the Heavy Lifting
Smart Itemization
Our proprietary software scans your photos and data to meticulously identify components eligible for accelerated depreciation—from flooring and fixtures to fences and driveways.
Automated Pricing & Classification
Forget hours of research. The platform automatically assigns the correct, defensible value and asset class (5, 7, or 15-year property) to each component.
Audit-Ready Documentation
Receive a detailed final report that includes all the necessary schedules, statements, and methodologies required to be compliant with IRS standards.
Get Your Complete Study
Everything you need for maximum tax savings on your single family rental. No hidden fees, no surprises.
What's Included:
Answers to Your Questions
Is this accepted by the IRS?
Yes. Our cost segregation reports are IRS-compliant and designed to meet all necessary requirements for audit-grade precision.
What happens after I submit the form?
After you submit your property details and complete the payment, our proprietary software begins processing your information. You will receive your complete, audit-grade cost segregation report via email within 48 hours.
Can I talk to someone?
Yes. While our process is designed to be fully automated, we do have a support email for questions. You can reach us at support@segonomics.com for any assistance you need.
What if I own multiple properties?
Our platform is designed to generate a dedicated, detailed report for each individual property to ensure audit-grade accuracy. If you own multiple properties, you will need to complete the submission process for each one.
Is this really worth it for my single rental property?
In the past, the high cost of engineering-based studies made it impractical for smaller properties. Our proprietary platform makes it affordable for the first time. For a small one-time fee, you can potentially unlock thousands of dollars in tax deductions. Use our free calculator to see your specific savings potential—most users find the ROI is significant.
How is the report used for my tax filing?
The report gives your CPA or tax preparer the detailed data they need to maximize your depreciation deductions. How they use it depends on when you placed the property in service:
- For Properties Placed in Service in a Prior Year: Your CPA will use the report to file IRS Form 3115, Application for Change in Accounting Method. This lets you claim a large "catch-up" deduction for all the depreciation you missed in previous years.
- For Properties Placed in Service in the Current Tax Year: No Form 3115 is needed. Your CPA will simply use our report to set up your initial depreciation schedule on IRS Form 4562, Depreciation and Amortization, ensuring you start with the maximum deduction from day one.
From Our Blog
Expert insights to help you maximize your rental property investments.
What is Cost Segregation? A Simple Guide
Learn the fundamentals of this powerful tax strategy.
Is It Worth It for a Single-Family Home?
A breakdown for smaller investors.
DIY vs. Engineering Studies
Compare the pros and cons of modern vs. traditional.
Case Study: How a $500k Rental Generated $19k+ in Tax Savings
See a real-world example of our platform in action.
Contact Us
Have questions? We're here to help.
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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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