Cost segregation, answered

A tax planning method that identifies parts of a building — certain fixtures, finishes, and land improvements — that can be depreciated over 5 or 15 years instead of 27.5 years, accelerating deductions in the early years of ownership.

No. SegDIRECT gives a free, preliminary projection to help you decide whether a full study is worthwhile. A formal cost segregation study is a detailed, engineering-based analysis prepared and documented by professionals — that is the work that supports the numbers you file.

The preliminary estimate is completely free, with no login and no obligation. You only pay if you choose to move forward with a full cost segregation study.

Just a few basics: property type, purchase price, the date it was placed in service, and roughly how the cost breaks down between land and building.

1–4 unit residential rentals — single-family homes through fourplexes — with meaningful building basis (typically excluding land) tend to benefit most. The estimator helps you see whether the potential upside justifies a full study.

Running a preliminary estimate has no effect on your tax filings — it is a planning tool. Cost segregation itself is a well-established method; a properly documented, engineering-based study is what supports the position on a return.

SegDIRECT is a technology product of Wm. Neil Langlois CPA, LLC — a licensed CPA firm — so the methodology and any full study are backed by a real professional, not an anonymous calculator.

You see your preliminary numbers right away. If it looks worthwhile, you can connect with the CPA firm behind SegDIRECT to discuss a full study — no pressure and no obligation to continue.