Cost Seg Smart is an automated engineered cost segregation provider built for residential investors and the CPAs who serve them. We deliver IRS-compliant 40+ page cost segregation studies in under 1 hour — using the same RSMeans 2024 cost data, the same MACRS framework, and the same IRS Audit Techniques Guide methodology that traditional engineering firms charging $5,000–$15,000 use, just without the discovery calls and site visits that slow them down.
Why we exist
Most rental property owners don't get cost segregation studies. Not because the math doesn't work — it almost always does, especially under 100% bonus depreciation — but because the traditional cost-seg industry was built for $10M+ commercial properties. A $400K rental couldn't justify a $5,000 study fee, so investors left tens of thousands in Year-1 deductions on the table.
We rebuilt the workflow. The cost-seg engine runs on every order in seconds. An engineer reviews. A CPA-ready PDF lands in your inbox under an hour. Studies start at $495 for residential properties under $300K basis.
What we don't do
We don't take on properties where the math doesn't work. The calculator on every page tells you up front whether your property qualifies. If your basis is below $150K, your bracket is below 22%, or you can't use the rental losses this year, we'll flag it. Refunds are available if your CPA can't use the report.
Audit support
Every study is built with audit defense in mind: full methodology documentation, RSMeans citations, MACRS classification, and engineer attestation. If the IRS questions a study, we respond directly to your CPA at no charge.