KBKG vs The Alternatives: A 2026 Buyer's Guide for Cost Segregation
KBKG's $495 DIY product is software-only and best fits residential investors under $300K basis with conservative positions. Boutique firms in the $2,495 to $5,000 range (including WeCostSeg's $2,495 Fully Engineered Residential tier) produce engineer-signed reports with materially higher reclassification on properties above $500K basis. Big 4 advisory firms at $8,000 plus typically only fit institutional portfolios where the engagement is bundled with other tax planning work.
The KBKG product
KBKG operates as both a specialty tax consultancy and a DIY software vendor. Their DIY product, priced at $495 starting, provides a questionnaire-driven cost seg report for residential and small commercial properties. KBKG has stated publicly that it has helped businesses and CPAs unlock over $10 billion of tax credits and incentives since 1999.
The DIY product is positioned for investors who want a low-cost cost seg deliverable they can hand to their CPA without a full engineering engagement. The trade-off is the IRS Pub 5653 Principal Element coverage discussed in our DIY vs engineered comparison. The savings ceiling is lower because the methodology cannot apply property-specific engineering judgment.
Boutique firms (including WeCostSeg)
Boutique cost seg firms typically price residential studies in the $2,495 to $5,000 range and commercial in the $2,995 to $8,000 range. Most include site inspection, engineer-signed reports, and the 13 Principal Elements compliance. WeCostSeg's Fully Engineered Residential tier sits at the bottom of this band at $2,495 with five years of audit defense included.
Boutique firms differ from KBKG in two ways. First, the work is fully engineering-led rather than software-assisted. Second, founder-accessibility is typical (you can reach the people doing the work). WeCostSeg adds WhatsApp-direct founder communication to that pattern, plus public pricing transparency (KBKG and many boutiques quote per project).
Big 4 advisory (EisnerAmper, BDO, Aprio, etc.)
Large specialty tax firms and Big 4 advisory practices price cost seg engagements at $5,000 to $10,000 plus, often bundled with broader tax planning. The engagement runs through account managers and junior associates with engineering review at the back end. These firms fit institutional portfolios, REITs, fund-of-funds structures, and clients whose tax planning is multi-disciplinary.
For a single residential rental or small commercial property, Big 4 pricing is rarely cost-effective. The reclassification quality is comparable to boutique firms because the underlying engineering work is similar. The premium pays for institutional brand and bundled service.
| Provider type | Typical price | Best for | Trade-off |
|---|---|---|---|
| KBKG DIY software | $495 | Residential under $300K | Software methodology, weak audit defense |
| R.E. Cost Seg | $950 to $3,325 | Residential and small commercial | Mid-market option |
| WeCostSeg Rapid Report | $795 | Residential under $800K, engineer-reviewed | Lower depth than full engineering |
| WeCostSeg Fully Engineered | $2,495 to $2,995 | Residential to $2M, all commercial | Engineering depth, audit defense included |
| Boutique firms | $2,495 to $5,000 | Same as above | Variable transparency |
| Big 4 advisory | $8,000 plus | Institutional, bundled tax planning | Premium for brand |
How to choose
Match the engagement to the property and the tax position. Conservative residential investor under $300K basis: DIY or Rapid Report. Engaged residential or small commercial investor between $300K and $2M: Rapid Report or Fully Engineered Residential. Commercial of any size, STR loophole, REPS amplification, or look-back: Fully Engineered Commercial. Institutional or multi-disciplinary engagement: Big 4 advisory.
The fee differential between tiers is dwarfed by the reclassification differential on properties above $500K basis. The engineered tier almost always produces more after-fee tax savings on any honest 10-year NPV analysis above that basis threshold.
Frequently asked questions
- How does WeCostSeg coordinate with my CPA?
- Every engagement follows the three-touch CPA Coordination Protocol. We send a preliminary analysis to your CPA on intake, share the draft report five business days before final delivery, and coordinate Form 3115 filing timing when a Section 481(a) adjustment applies. Your CPA never pays a fee.
- Does this analysis assume 100% bonus depreciation under OBBBA?
- Yes for property acquired with a binding contract on or after January 20, 2025 under Public Law 119-21. Property under a binding contract on or before January 19, 2025 stays on the legacy phase-down: 40% bonus in 2025, 20% in 2026, 0% in 2027 and after.
- Is the five-year audit defense included?
- Yes. Every WeCostSeg engagement includes five years of written audit defense at no extra cost. The defense aligns 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 your property details via the free proposal form or WhatsApp. Our engineer returns a written estimate of your first-year deduction within four business hours during US Eastern hours. No payment, no contract.
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.