Cost Seg Authority Review (2026)
Pricing, methodology, audit defense, and where this provider fits.
Editorial note: This review is published by Cost Seg Smart, which appears as a competitor on this site. Public-facing data only — pricing, methodology, and credentials reflect what the provider publishes. Pricing as of May 2026.
- Pricing
- Contact for quote
- Turnaround
- 2-4 weeks
- Methodology
- Engineering-based
- Site visit
- Yes
- CPA support
- Available
- Guarantee
- Not publicly stated
- Property types
- Residential and commercial
- Founded
- Unknown
Pricing detail
Not published.
Pricing reflects publicly advertised rates as of May 2026. Quotes for specific properties may differ. The same IRS-compliant methodology applies regardless of price tier — what changes is delivery, engineering depth, audit defense scope, and turnaround.
Methodology and process
Cost Seg Authority uses engineering-based. All US cost segregation studies — including this one — must follow the engineering-based methodology described in the IRS Cost Segregation Audit Techniques Guide and apply MACRS classification per Rev. Proc. 87-56. The framework is set by federal law; what varies across providers is execution depth, documentation, and audit defense scope.
Property-type fit
Cost Seg Authority works with residential and commercial. For investors evaluating providers by property type, our category rankings list multifamily provider comparison and commercial-focused firms.
Audit defense
CPA support: Available. Guarantee: Not publicly stated. Audit defense scope varies materially across providers, ranging from explicit IRS representation to no defense beyond report delivery — see the scoring methodology for how we evaluate this dimension.
Pros
- Engineering-based methodology
- Serves both residential and commercial
Cons
- Limited public information
- Pricing not transparent
- Smaller market presence
Verdict — who this is for
Cost Seg Authority earns 7.0/10 in our scoring rubric. Best fit for commercial and multifamily owners who value engineering depth and traditional documentation. For investors comparing alternatives, the full 27-provider sortable table is on the homepage.
FAQ
How much does Cost Seg Authority charge?
Not published.
How long does a Cost Seg Authority cost segregation study take?
Turnaround: 2-4 weeks. This is consistent with the 4–8 week traditional engineering benchmark.
Does Cost Seg Authority require an on-site visit?
Yes. The IRS Cost Segregation Audit Techniques Guide (Pub 5653) does not require an on-site visit; it requires engineering-based methodology with documented support.
Pricing and operational details reflect public information as of May 2026. Provider corrections welcome via the submission form. This review is not legal, tax, or financial advice — confirm cost segregation suitability with your CPA before ordering a study.