Free Cost Segregation Calculators
By Zawwad Ul Sami, Founder, WeCostSegPublished: 2026-05-14Last updated: 2026-05-14
Five interactive tools that handle the math investors keep asking about. Each uses industry-typical component allocations from IRS Publication 5653 guidance and the allocation ranges published on our property type pages. Calculators are estimates only. A real engineering study uses property-specific component data and is materially more precise.
Cost Segregation Savings Calculator
First-year deduction and tax savings under 100% bonus depreciation.
Depreciation Recapture Calculator
Section 1245 vs unrecaptured 1250 vs LTCG, with 1031 deferral comparison.
STR Loophole Eligibility Checker
The four criteria under Reg. 1.469-1T(e)(3)(ii) plus the material-participation tests.
Bonus Depreciation Timeline Tool
Which bonus rate applies based on the OBBBA Jan 19, 2025 cliff.
REPS Hours Tracker
750-hour and more-than-half tests for IRC Section 469(c)(7) qualification.