Cost segregation, done right
Accelerate depreciation. Maximize your tax savings.
CS-Ninja helps real estate owners unlock bigger deductions with fast, defensible cost segregation studies your CPA can plug straight into your tax filings.
Studies from $2k to $40k depending on scope. No obligation to start.
How it works
Three steps from property details to deductions your CPA can file.
Share your property
Tell us the basics: property type, purchase price, and when it was placed in service. That is enough for us to scope a study and give you an estimate.
We run the study
Our team engineers a detailed cost segregation study that reclassifies building components into shorter depreciation lives, so more of your basis can be written off sooner.
Your CPA files it
You get a clear, defensible report with the schedules and supporting documentation your CPA can plug straight into your tax filing.
Who it's for
Built for property owners first, and a strong fit for the advisors and operators around them.
Real estate investors and owners
The core fit. If you own income property, a study can free up cash by accelerating depreciation in the years you need it most.
CPA and tax advisory firms
Bring your clients defensible studies you can rely on at filing time, without building the engineering work in-house.
Short-term rental owners
STR properties often hold strong reclassification potential. We help owners capture it with documentation that holds up.
Commercial investors and syndicators
Larger assets and portfolios get custom-scoped studies built for multiple properties and partners.
Why CS-Ninja
Faster studies, fair pricing, and documentation built to hold up.
Faster
A streamlined process and a focused team mean studies move quickly, so you are ready well before your filing deadline.
More affordable
Efficient engineering keeps pricing fair. Residential studies start in the low four figures, far below the cost of leaving deductions on the table.
Defensible
Studies are engineering-based and prepared by a Certified Cost Segregation Professional (CCSP), fully documented and built to stand up to scrutiny so your CPA can file with confidence.
Straightforward pricing
Studies range from $2,000 to $40,000 depending on scope. Residential studies typically land in the low-to-mid four figures. Commercial and portfolio work is custom-quoted. We stay flexible for early partners bringing multiple projects.
Get a free estimate- Residential
- Low-to-mid four figures. Single-family rentals and small multifamily.
- Commercial and portfolio
- Custom-quoted to the asset and the number of properties.
- Early partners
- Bringing multiple projects? We will work with you on pricing.
Frequently asked questions
The basics on cost segregation and how working with CS-Ninja goes.
What is a cost segregation study?
It is an engineering-based analysis that breaks a property into its components and reclassifies many of them into shorter depreciation lives (such as 5, 7, or 15 years) instead of the standard 27.5 or 39 years. That lets you take more depreciation sooner, which can lower your taxable income in the earlier years of ownership.
Who qualifies for cost segregation?
Owners of income-producing real estate are generally the best fit: residential rentals, short-term rentals, commercial buildings, and multifamily. It tends to make the most sense when you have a meaningful cost basis in the building and you are paying tax that the accelerated deductions can offset. Your CPA can confirm the fit for your situation.
What kind of benefit can I expect?
Results vary with property type, cost basis, placed-in-service date, and your tax situation, so we do not promise a specific number. The value comes from moving deductions forward, which can improve cash flow in the early years. We will talk through what is realistic for your property when we scope the study.
How long does a study take?
Timelines depend on the property and how quickly we get the details we need, but our process is built to move quickly so you are ready well before your filing deadline. We will give you a clear timeline with your estimate.
Do I need to involve my CPA?
Yes, and that is the point. We deliver a clear, defensible report with the schedules and documentation your CPA needs. Your CPA applies the results to your return. We do not file taxes or replace your tax advisor.
Does this work for both residential and commercial properties?
Yes. Residential and short-term rentals are typically scoped as standard studies, while commercial buildings, larger multifamily, and portfolios are custom-quoted to the asset and the number of properties.
Is a cost segregation study defensible if I am audited?
Our studies are engineering-based and documented to align with IRS guidance, including the principles in the IRS Cost Segregation Audit Techniques Guide. No one can guarantee how a taxing authority will treat a position, but thorough documentation is exactly what supports it.
Find out what you could save
Send us a few details about your property and a CS-Ninja specialist will come back with a free, no-obligation estimate. Most replies go out within one business day.
- No cost to get an estimate
- Defensible, audit-ready documentation
- Built for your CPA to file from
