How to Choose a Cost Segregation Provider
Choose a cost segregation provider on five criteria: (1) named engineer credentials on the report, (2) explicit IRS Publication 5653 methodology compliance with all 13 Principal Elements addressed, (3) transparent published pricing, (4) included audit defense (5 years minimum, no extra charge), (5) CPA coordination protocol. Engineer-led firms with public pricing and included defense typically dominate on these criteria.
Criterion 1: Engineer credentials on the report
Pub 5653 Chapter 4 Principal Element #1 is preparer qualifications. The final report should name the engineer who reviewed and signed it. Ask: who specifically reviews my study?
Software-only vendors fail this criterion because no engineer reviews the work. CPA-led firms may pass if they have an engineer on staff or partner with an engineering credential.
Criterion 2: Pub 5653 methodology compliance
Confirm the provider follows the detailed engineering approach from actual cost records (Pub 5653 Chapter 3 Method 1) or detailed engineering cost estimate (Method 2). Ask: which methodology and how do you document all 13 Principal Elements?
A clear answer with reference to specific Pub 5653 sections is the marker of a competent provider. Vague answers about industry-typical or proprietary methodology are red flags.
Criterion 3: Transparent pricing
Published tier pricing on the provider's website indicates transparency and confidence. Quote-only pricing without public ranges indicates the provider may charge what the market will bear.
Ask for written pricing before engaging. Compare against published pricing from comparable firms.
Criterion 4: Included audit defense
Five years of written audit defense, included at no extra charge, is the WeCostSeg standard. Some providers charge separately for defense or limit defense scope (correspondence only, no field audits).
Confirm in the engagement letter: defense period, scope of audits covered, who signs the defense letters, whether litigation support is included or separate.
Criterion 5: CPA coordination protocol
The cost seg study integrates with the tax return. A provider with a documented CPA coordination protocol (preliminary analysis CC'd, draft report shared pre-delivery, Form 3115 prep when applicable) makes the engagement smoother.
Ask: how do you coordinate with my CPA, and do you charge my CPA any fees? The right answer is structured coordination at no charge to the CPA.
Frequently asked questions
- How does WeCostSeg coordinate with my CPA?
- Every engagement follows the three-touch CPA Coordination Protocol. Preliminary analysis CC'd to your CPA on intake, draft report shared five business days before final delivery, and Form 3115 filing coordinated when a Section 481(a) adjustment applies.
- Does OBBBA's 100% bonus apply to my acquisition?
- 100% applies to property under a binding contract on or after January 20, 2025 per Public Law 119-21. Property under a binding contract on or before January 19, 2025 stays on the legacy phase-down: 40% in 2025, 20% in 2026, 0% in 2027 and after.
- Is audit defense included?
- Yes. Every WeCostSeg engagement includes five years of written audit defense at no extra charge, aligned to the 13 Principal Elements of a Quality Cost Segregation Study under IRS Publication 5653 Chapter 4.
- Can I get a free preliminary analysis?
- Yes. Submit property details via the free proposal form or WhatsApp. Engineer-reviewed estimate returned within four business hours during US Eastern hours.
Zawwad Ul Sami, Founder
Zawwad Ul Sami is the founder of WeCostSeg, a founder-led cost segregation firm serving real estate investors across the US. He focuses on strategy, pricing, and the firm's overall direction.