Two landlords on the same street own pretty much identical duplexes. One pays the provider $4,200 for a study. The other pays $899 and gets a report which the first landlord’s CPA rates as being better. Same asset class, same year, massive difference in invoice and that gap is pretty much nothing to do with the building.
Cost segregation studies got super commoditized and the pricing spread is now from a few hundred dollars up to well into the five figures per property. The differentiators between the various price points aren’t generally to do with the engineering. It’s more to do with who writes the report, whether a CPA ever sees it and what happens if the IRS comes knocking two years down the line. If you’ve been looking at the RentalWriteOff reviews alongside some quotes from two or three other firms then you’ll already be aware that the quoted prices look pretty much the same on the surface.
The actual differences are in the deliverables.
Here’s the framework I use to separate them, plus the precise questions I’d put in writing prior to signing anything.
The Four-Bucket Test
Every cost segregation study on a rental property is designed to do one thing: take items out of the 27.5 year building bucket and put them into the 5, 7 or 15 year property classes where they will depreciate at a much faster rate. The IRS has a Cost Segregation Audit Techniques Guide which details what a defensible study would look like and the bulk of the due diligence is really going to be whether your provider’s deliverable would withstand a side by side review against that guide.
So I score providers on four buckets, and I weight them in this order:
1. Who signs the report? An engineer, a CPA or nobody at all (anonymous reports are a massive red flag that you can spot at the proposal stage).
2. What’s in the appendix? The asset schedules, the classification methodology and the valuation rationale. If the sample report is five pages then you’ll want the full version.
3. Form 3115 handling. If you’re doing a look-back study on a property which you’ve already placed in service then someone has to prepare the change in method of accounting.
4. Post-filing support. What if your return gets pulled? Who deals with the auditor’s letter and at what cost?
Bucket 4 is where the cheap providers just quietly stop being cheap. I’d rather pay a flat fee which includes audit support than a lower fee with a blank line where the support should be.
Why the 27.5-Year Bucket Is the Whole Point
New landlords hear the term “cost segregation” and think of some rather exotic accounting trick. It’s not exotic at all. It’s just a reclassification exercise underpinned by engineering. You go through the property and identify all the things that are in it (flooring, cabinetry, appliances, landscaping, driveway, fencing etc.), assign each of those a class life and justify the allocation. The 27.5 year structure is still there depreciating at its slow rate. Everything else gets pulled forward.
What makes the studies defensible is the documentation not the math. An auditor isn’t going to re-measure your driveway. They’re going to read your report and ask whether the methodology makes sense. The point is that in every profession there is an expectation that a third party can follow the methodology as set out in a written report. Cost segregation is no different. If a provider can’t show you their methodology in a sample report they’re not worth the fee.
I’ve seen studies where the classification was simply “per site inspection” with nothing further. That’s not documentation. That’s a conclusion with a cover sheet.
Five Questions to Send Before You Sign
Put those in an email. The providers who will reply in writing within a day are the ones that actually have a process.
Can you send us a full redacted sample report rather than a summary?
● Who actually reviews the final classifications prior to delivery and is that individual named in the report?
● Is the Form 3115 included for the look back studies or is it billed separately?
What does audit support cover and is it capped in hours or dollars?
● Is the fee a flat rate per property or does it scale with the purchase price?
That last one is probably the most important one to landlords. A flat fee per property is simple to budget when you’ve got three duplexes and a fourplex. A percentage of basis fee means the same amount of engineering work costs more on a larger building. I’d take the flat fee every time as the engineering hours don’t go up in proportion to the purchase price.
What a $500,000 Property Actually Shows You
Suppose you buy a rental for $500k and the land is worth $100k. That leaves a $400k depreciable basis. A study might reclassify some $90k into the accelerated buckets, leaving you with approximately $310k in the 27.5 year bucket. The accelerated portion will produce a much larger deduction in the early years and for a landlord in a higher bracket the first year cash difference can be in the five figure range.
The figures in a proposal are all estimates, not guarantees. Any provider who gives you a specific figure for a refund prior to even seeing your property is just guessing. A proper quote will give you a range of potential savings and will explain the basis of that quote.
Red Flags I Would Walk Away From
Three things end the conversation with me.
No named reviewer. If it’s a company that’s been named in the proposal but there’s no engineer or CPA attached then you’ve got absolutely no idea who the classifiers are. Ask for a name and make sure that name is on the sample report.
No reference to Form 3115. For a property already in service the change of accounting method is just part of the job. A provider who would present it as an optional add-on is one that has never walked a client past the filing desk.
Vague turnaround times. ‘Fast’ isn’t a timescale. Two business days after complete intake is a timescale. One of those you can plan around, one of those you can’t.
The reverse is also true. If you’re given the full sample report, the name of the reviewer, the form itself and a delivery window in the proposal then you’ve already done the vast majority of the work in building trust. Once that’s been done the price comparison becomes trivial.
Cheap studies are no bargain if your CPA has to start from scratch rebuilding them. Expensive studies are no better if the extra cash has got you nothing to show for it in the appendix.
What Changes When Your CPA Is in the Loop
Most CPAs have a very strong view on cost segregation studies and it’s generally based on one bad experience. They got a study with extremely thin classifications, had to go to the IRS and defend it and now they’re just wary of them. If your CPA is already filing a Schedule E for you then you need to ask them what they require from a provider prior to tax season.
The answers are pretty much the same: schedule formatted for the return, clear asset class assignments and a reviewer who will take your phone call. Once a provider hits that bar the CPA ceases to be a gatekeeper and becomes an ally. That’s worth more than a discount.
One practical note on timing. Preparing studies takes longer than most landlords realize, particularly if you’re sending photos and records in bits and pieces. If you want the deduction on this year’s return you should be starting in the fall. If you wait until March you’re either going to be over the deadline or going to have to pay for a rush.
Where This Leaves You
The provider you pick is actually of far less importance than the deliverable you end up accepting. A named reviewer, a full sample report (Form 3115 included), flat pricing and written audit support will cover around 90% of the risk in this scenario. If you get those five things in writing then the difference in pricing between the quotes ceases to be a scary thing.
So before you sign anything this year, send the five questions and see who answers. The replies will tell you more about your provider than any sales call will. Which one of your properties would you run through a study first?
