How to choose a web-based cost segregation tool

A useful service has two parts. First, it needs a structured way to collect property records and answers. Second, it needs a defensible process for turning that information into a report.

The intake should ask enough to distinguish land, building components, site improvements, prior improvements, and separately purchased property. It should capture acquisition and placed-in-service dates, renovation costs, existing depreciation information, and supporting records when those details apply. A short intake is not automatically better. If the service never asks for a fact that can change the classification or value, find out how that fact will be handled.

The report should do more than present a percentage and projected tax benefit. It should let a reader trace the result through asset detail, valuation assumptions, classification rationale, and source records. If you are unsure what belongs in the starting number, read the Basis guide to determining depreciable basis.

The IRS Cost Segregation Audit Technique Guide, Publication 5653 gives examiners a framework for reviewing studies. It also offers buyers a useful benchmark. The guide discusses asset classification, legal rationale, cost substantiation, reconciliation, methodology, documentation, and preparer experience. It is examination guidance, not an official IRS pronouncement or a substitute for tax authority. A provider should not present it as IRS approval of its method.

Report length by itself proves little. A concise report can be well supported. A long report can hide weak assumptions. Ask whether another qualified person can follow how the study reached its numbers.

The same questions should apply to every provider, including Basis. Look for answers in a sample report, written scope, pricing page, or direct response from the company.

If a provider cannot share a redacted sample, ask for a table of contents and a description of each schedule. If the company cannot explain its valuation method without slogans, treat that as a gap. You do not need proprietary formulas, but you do need enough detail to understand what you are buying.

A free estimate is a screening tool. It can help you decide whether the expected benefit is large enough to keep investigating. Because an estimate uses limited facts, it may rely on planning assumptions about land allocation, reclassification, tax rate, or additional first-year depreciation. Those assumptions should be visible.

A completed study has a different job. It should use the property's facts to support asset values and classifications. It should produce schedules that your tax professional can evaluate. Do not treat an estimate as a depreciation schedule, and do not assume a large projected benefit proves that the final report will be strong.

The Basis guide to cost segregation study eligibility explains the difference between basic eligibility and whether the numbers may justify the study cost. A lower projected benefit is useful information too. It may tell you not to buy a report.

Basis currently focuses its public service on residential investors. The process begins with a free property estimate, and no account is required to start. The estimate asks key property questions and lets the owner review the opportunity before committing to a full report.

Clients who continue use a saved online intake that they can return to on another device. Basis states that cost segregation professionals review its full residential reports before delivery. Its published report description includes component detail, depreciation schedules, methodology notes, and plain-English next steps for the owner and CPA.

Those are useful signals, but Basis should face the same questions in the table. Review how the Basis process works, check current pricing, and read what to expect after receiving a Basis report. Confirm the scope, timing, and follow-up support that apply to your property before ordering.

At publication, Basis lists a professionally reviewed residential report at $1,795. Portfolios of five or more residential properties use custom pricing. An owner should still confirm whether unusual property facts or extra work can change the published price or schedule.

Basis provides the workflow and the reviewed report. It does not replace the tax professional who decides how the study fits the taxpayer's return, elections, and broader tax position.

A web form cannot create missing records or settle an ambiguous tax position. Acquired properties without original construction documents, mixed-use buildings, major renovations, unusual building systems, and new construction can require more documentation or specialist judgment. The provider should explain whether its standard process fits those facts and who will handle the extra analysis.

Basis's public offer is centered on residential property. If your property is commercial, highly specialized, mixed-use, or otherwise outside an ordinary residential scope, confirm fit and price before relying on the standard workflow.

Professional review does not guarantee that the IRS will accept every classification. Audit support is not an audit guarantee either. Ask what support is included, how corrections are handled, and what happens if your CPA or another reviewer requests more documentation.

An online intake may contain purchase records, property addresses, and financial information. Review the provider's privacy terms, account controls, document access, and report-delivery process before submitting sensitive records. A padlock icon is not enough detail.

1. Run an estimate and write down the assumptions behind the projected benefit.

2. Review a redacted report, table of contents, or detailed deliverables list.

3. Use the comparison table to evaluate each provider against the same evidence.

4. Ask your CPA what schedules and support they will want before filing.

5. Confirm the price, expected delivery, correction process, and ongoing support in writing.

Choose the service that answers these questions plainly. A low price can be a good value when the scope fits the property. A higher price does not prove quality. Online delivery can make the process easier, but the finished study still has to carry the work.

Not sure whether a full study is worth buying? Start with the free property estimate. No account is required to begin. Review the projected opportunity, then decide whether a full report fits the property and your tax plan.

© 2026 Basis Cost Seg. For informational purposes only and not tax, legal, engineering, appraisal, or valuation advice. Cost segregation and depreciation treatment depend on the property and the taxpayer. Consult a qualified tax professional regarding your situation.