Cost Segregation · California
Cost segregation for California rental properties
Engineering-based studies for residential rentals and short-term rentals anywhere in California. $899 flat, delivered in 2 business days, fully remote, audit support included.
Bonus depreciation in California
Does not conform to federal bonus depreciationOn the federal return, 100% bonus depreciation is permanent for qualifying property acquired after January 19, 2025 (property acquired on or before that date follows the older phase-down rates). A cost segregation study is what identifies the 5-, 7-, and 15-year property that bonus depreciation can reach.
California does not conform to bonus depreciation at all: the bonus amount is added back and property is depreciated under regular schedules on the California return, with Section 179 capped at $25,000. The federal deduction still applies in full; state savings arrive over the asset's life.
Last reviewed July 2026. State conformity rules change and depend on your facts; confirm current treatment with your tax professional. Federal methodology source: IRS Publication 5653. See our 50-state conformity table.
Fully remote, wherever the property is
STEP 01
Submit online in five minutes
Address, purchase details, photos, and closing documents. No site visit and nothing to schedule, which is why the process works the same in every California market as everywhere else.
STEP 02
We analyze and review
Every component is classified with our engineering-based approach, aligned with the IRS Cost Segregation Audit Techniques Guide, then expert-reviewed before delivery.
STEP 03
File with your preparer
Your report arrives in 2 business days with Form 4562-ready schedules and audit support included. Your tax preparer applies the results to your federal and California returns.
Common questions
Does California conform to 100% federal bonus depreciation?
California does not conform to bonus depreciation at all: the bonus amount is added back and property is depreciated under regular schedules on the California return, with Section 179 capped at $25,000. The federal deduction still applies in full; state savings arrive over the asset's life. State treatment changes; confirm current rules with your tax professional before filing.
Do you prepare cost segregation studies in California?
Yes. The process is fully remote and works the same in every state: you submit your California property's photos and documents online, and the completed study is delivered in 2 business days with audit support included. No site visit is needed.
How much does a cost segregation study cost in California?
The same flat fee as everywhere else: $899 per property for residential rentals up to 4 units, short-term rentals, and manufactured housing. There is no travel charge because no site visit is required.
See your property’s numbers first
The estimate is free and takes about a minute. Then the full study is $899 flat, delivered in 2 business days.