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How-To Guides: Step-by-Step Tax Strategy

By Zawwad Ul Sami, Founder, WeCostSegPublished: 2026-05-14Last updated: 2026-07-28

Fifteen how-to guides covering the operational steps for cost segregation, REPS qualification, STR loophole, Form 3115 filing, recapture computation, and bonus depreciation reporting. Each guide names the exact form, regulation, and timing.

Frequently asked questions

How do I file Form 3115 for a cost segregation look-back study?
File Form 3115 (Application for Change in Accounting Method) using Designated Change Number 7 under Rev. Proc. 2022-14. Attach two copies: one with the current-year return and one mailed to the IRS Ogden office by the return due date including extensions. The Section 481(a) catch-up adjustment posts entirely in the year of change without amending prior returns. Rev. Proc. 2015-13 governs the automatic consent procedure.
What documents do I need for a cost segregation study?
Provide the closing statement (HUD-1 or ALTA), the appraisal or purchase price allocation, blueprints or floor plans if available, property tax records for land value, and photographs of the interior and exterior. For look-back studies, supply the current fixed asset schedule and prior depreciation schedule. The engineer uses these to allocate basis across the 13 Principal Elements per IRS Pub 5653.
How do I qualify for Real Estate Professional Status?
Meet both prongs of IRC Section 469(c)(7): perform more than 750 hours in real property trades or businesses, and perform more than half of all personal service hours in real property trades or businesses. Then materially participate in each rental activity under Reg. 1.469-5T, or aggregate all rentals under the Reg. 1.469-9(g) election. File the aggregation statement with the timely-filed return.
How do I compute depreciation recapture at sale?
Split the total depreciation between Section 1245 property (5, 7, 15-year components) and Section 1250 property (27.5 or 39-year real property). Section 1245 recapture is taxed at ordinary rates up to the accumulated depreciation. Unrecaptured Section 1250 gain is taxed at a maximum 25% rate under Section 1(h)(1)(E). File Form 4797 to report the sale and the recapture allocation.
How do I qualify for the STR loophole and offset W-2 income?
Under Reg. 1.469-1T(e)(3)(ii)(A), the property must have an average customer stay of 7 days or less. Then materially participate under one of the seven Reg. 1.469-5T tests; the 100-hour test is most common. The STR is nonpassive and losses offset W-2 income. Document average stay with reservation records and material participation with a contemporaneous time log.
When should I file a cost segregation study for a newly built property?
File the study with the original return for the year the property is placed in service. Under Reg. 1.446-1(e)(2)(ii)(d)(3)(iii), depreciation elections and methods are established on the first return. A study in year one avoids the Form 3115 method-change process entirely. For construction-in-progress placed in service in stages, do a study on each phase as placed in service.
How do I report bonus depreciation on Form 4562?
Enter the special depreciation allowance on Line 14 of Form 4562 (Depreciation and Amortization) for the amount claimed under Section 168(k). Enter regular MACRS depreciation on Lines 19a through 19i for the non-bonus portion. For look-back studies, attach the Form 3115 method change and enter the Section 481(a) adjustment on the appropriate line of the tax return (Schedule E for rentals, Schedule C for active businesses).
About the author

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.