Madison SPECS vs AE Tax Advisors Cost Segregation
An honest comparison of Madison SPECS and AE Tax Advisors for cost segregation: engineering methodology, property fit, pricing model, and what each firm does after the study is delivered.
The Short Version
Madison SPECS is a high-volume cost segregation specialist and does that work well, particularly on commercial and multifamily assets. It is a study provider: you receive an engineering report and take it to whoever prepares your return.
AE Tax Advisors is a tax advisory firm that performs cost segregation as one component of a broader engagement, and then files the return that uses it.
If you already have a CPA you are happy with and simply need a defensible study on a large asset, Madison SPECS is a strong choice. If nobody is analyzing whether you can actually deduct the loss this year, that is the gap AE Tax fills.
Who Madison SPECS Is
Madison SPECS is the cost segregation arm of the Madison group of real estate service companies, based in Lakewood, New Jersey. The firm has performed studies across a very large number of properties nationally, with particular depth in multifamily, commercial, and portfolio work.
The methodology is engineering-based, which is the approach the IRS Cost Segregation Audit Techniques Guide treats as most reliable. For institutional owners and syndicators running many assets, the firm's volume experience is a genuine advantage: they have seen the asset class before and the component allocations reflect that.
What Madison SPECS does not do is prepare your tax return, file the Form 3115 that a lookback requires, or analyze whether the resulting loss clears the passive activity rules. That is by design. They are a specialist provider and the tax work belongs to your CPA.
Who AE Tax Advisors Is
AE Tax Advisors is a strategic tax advisory firm based in Billings, Montana, working with clients nationwide. The practice centers on business owners, real estate investors, and high-income professionals who have outgrown compliance-only accounting.
The model is deliberately different from a study-only provider. A cost segregation study is one deliverable inside a broader engagement that also covers the passive activity analysis under IRC Section 469, material participation documentation, Form 3115 catch-up filings, entity structuring, reasonable compensation, retirement plan design, and the tax returns themselves.
Pricing is published rather than quoted case by case: $7,800 for the strategic advisory engagement, $2,500 per amended year, $1,500 and up for entity returns, $1,000 and up for individual returns, and $1 per square foot with a $2,000 minimum for cost segregation studies.
Side-by-Side Comparison
| Madison SPECS | AE Tax Advisors | |
|---|---|---|
| Engineering-based study | ✔ Yes | ✔ Yes |
| Typical pricing model | Quoted per property | $1/sq ft, $2,000 minimum |
| Best fit property size | Mid to large commercial, multifamily, portfolios | Residential, STR, small to mid commercial |
| Portfolio and volume experience | Extensive | Moderate |
| Tax return preparation included | ✘ No | ✔ Yes |
| Form 3115 prepared for you | ✘ No | ✔ Yes |
| Section 469 passive activity analysis | ✘ No | ✔ Yes |
| Material participation documentation | ✘ No | ✔ Yes |
| Prior-year amendment recovery | ✘ No | ✔ Yes |
| Entity structuring advice | ✘ No | ✔ Yes |
| Ongoing year-round advisory | ✘ No | ✔ Yes |
| Audit support for the study | ✔ Yes | ✔ Yes |
| Typical turnaround | Weeks | Days to weeks |
Where Madison SPECS Is Strong
- Deep experience in multifamily and commercial asset classes
- High study volume means well-developed component libraries
- Engineering-based methodology with audit support
- Comfortable handling portfolios and repeat acquisitions
Where the model has limits
- Study only: no return preparation, Form 3115, or passive loss analysis
- Pricing quoted per property rather than published
- You still need a tax advisor to make the deduction usable
Which One Should You Choose?
Choose Madison SPECS if you own mid-size or larger commercial and multifamily assets, already have a CPA handling the tax side, and want a specialist with heavy volume experience in your asset class.
Choose AE Tax Advisors if you want the study, the Form 3115, the passive activity analysis, and the return handled together, or nobody has yet confirmed you can actually use the deduction this year.
These are not mutually exclusive. Plenty of clients use a specialist for the engineering work on a complex asset and AE Tax Advisors for the strategy, the filings, and the return. We are glad to work from someone else's study.
Why Clients Choose AE Tax Advisors
- The deduction is analyzed before the study is sold. A large depreciation deduction is worth nothing if the passive activity loss rules suspend it. Every engagement models material participation, basis, at-risk, and the excess business loss limitation before a study is recommended.
- The filing is handled, not handed off. Form 3115 with its Section 481(a) adjustment, the duplicate Ogden copy, partial disposition elections, and the depreciation schedules all get prepared in-house.
- Prior years get reviewed. Every engagement opens with a three-year lookback. Recovering overpaid tax from returns already filed frequently covers a meaningful part of the engagement fee.
- Pricing is published. You can compare the cost against the modeled benefit before committing.
How to Evaluate Any Provider, Including Us
Whichever firm you engage, these six questions separate a defensible engagement from a report that will not hold up. Ask them of Madison SPECS, ask them of us, and compare the answers rather than the marketing.
- Ask which method the study uses. There are several accepted approaches and they are not equivalent. The IRS Cost Segregation Audit Techniques Guide treats the detailed engineering approach, using construction documents and a site inspection, as the most reliable. Ask directly whether someone will inspect the property and review the drawings, or whether the allocation is modeled from photographs and public data. Both are permissible. Only one is easy to defend.
- Ask who runs the passive activity analysis. This is the question that decides whether the deduction is worth anything this year. A study can produce a $400,000 first-year deduction that is entirely suspended under IRC Section 469. Ask who is confirming that you materially participate, that your average period of customer use is what you believe, and that you clear the basis, at-risk, and excess business loss limits. If the answer is nobody, the study is a number on paper.
- Ask who prepares the Form 3115. If you have owned the property for more than a year without a study, the catch-up runs through a change in accounting method rather than an amended return. That means a Form 3115, a Section 481(a) adjustment, a duplicate copy filed with the IRS in Ogden, and often a late partial disposition election. Study providers generally do not prepare it. Confirm who will.
- Ask what happens if the study is examined. Audit support means different things. Ask whether the provider will produce the workpapers, respond to an information document request, and stand behind the allocation, and whether that is included or billed separately. Ask how many of their studies have been examined and what happened.
- Ask for the exit math, not just the year-one number. Accelerated depreciation on personal property is recaptured as ordinary income under Section 1245 when you sell. If you deduct at 35% and recapture at 37%, you have borrowed from the IRS at a negative spread. A provider who only shows you the first-year deduction is showing you half the picture. Ask for the modeled outcome over your actual holding period, including whether a 1031 exchange or a step-up at death is part of the plan.
- Compare total cost, not study cost. A cheaper study plus a CPA who does not understand Section 469 is not cheaper. Add up the study, the return preparation, the Form 3115, and the planning work, then weigh that against the modeled after-tax benefit over your holding period. That is the only comparison that means anything.
Frequently Asked Questions
Is AE Tax Advisors better than Madison SPECS?
They solve different problems. Madison SPECS produces engineering studies at volume and does that well, especially on larger commercial and multifamily assets. AE Tax Advisors produces the study and then handles the tax work that turns it into a deduction you can actually claim. If you already have strong tax representation, Madison SPECS may be the better fit for the study itself.
How much does Madison SPECS charge for a cost segregation study?
Madison SPECS quotes per property based on size, type, and complexity rather than publishing a rate. AE Tax Advisors publishes $1 per square foot with a $2,000 minimum. Confirm current pricing with either firm before engaging.
Who is better for a large apartment complex?
For a large multifamily asset, Madison SPECS has extensive experience in that class and is a strong choice for the engineering work. The question worth asking separately is who will prepare the Form 3115 if the property has been held for years, and who will confirm the loss is not suspended under Section 469.
Does Madison SPECS prepare tax returns?
No. Madison SPECS provides the cost segregation study and supporting documentation. Return preparation, Form 3115 filing, and passive activity analysis are handled by your own CPA or advisory firm.
Can I use a specialist firm for the study and AE Tax Advisors for the strategy?
Yes, and that is a common arrangement on larger or unusual properties. We regularly work from a third-party engineering report, prepare the Form 3115 and depreciation schedules, run the passive activity analysis, and file the returns. The study and the strategy do not have to come from the same place.
Does a cheaper cost segregation study mean a worse outcome?
Not necessarily, but the method matters more than the price. The IRS Cost Segregation Audit Techniques Guide identifies the detailed engineering approach as the most reliable. A study without site work or construction document review is the first thing challenged on examination, particularly on specialty systems and site improvements.
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