# CostSegHelpAI > CostSegHelpAI is an AI-guided tax information and document-organization product for cost segregation prep, rental property depreciation records, property photo intake, component interviews, and CPA-ready workpapers. CostSegHelpAI is not a CPA firm, engineering firm, appraisal firm, law firm, or tax adviser. It is designed for tax information and documentation prep. Outputs should be verified against property facts, IRS guidance, current bonus depreciation law, passive activity rules, and qualified professional review before filing. ## Key pages - [Home](https://costseghelpai.com/): Landing page for AI-guided cost segregation prep. - [Cost segregation guides](https://costseghelpai.com/articles/): Source-backed educational articles. - [Frequently asked questions](https://costseghelpai.com/faq/): Direct answers about studies, costs, DIY documentation, photos, and product limitations. - [Editorial standards](https://costseghelpai.com/about/): Sources, review standards, limitations, and correction policy. - [Pricing](https://costseghelpai.com/pricing.txt): Machine-readable product pricing. - [Open Knowledge Format index](https://costseghelpai.com/okf/index.md): Machine-readable product facts and key links. ## Source-backed guides - [Can I Do My Own Cost Segregation Study?](https://costseghelpai.com/articles/can-i-do-my-own-cost-segregation-study/): Property owners can collect records and prepare documentation, but a supportable cost segregation position usually needs professional review before filing. - [Cost Segregation and Bonus Depreciation: What to Check First](https://costseghelpai.com/articles/cost-segregation-bonus-depreciation/): Cost segregation can interact with bonus depreciation, but the result depends on placed-in-service timing, property facts, current law, and tax limitations. - [Cost Segregation Calculator: What It Can and Cannot Tell You](https://costseghelpai.com/articles/cost-segregation-calculator/): A cost segregation calculator can screen potential savings, but it cannot replace property-specific documentation, classification analysis, or CPA review. - [Cost Segregation Report Documents: What to Gather Before a Study](https://costseghelpai.com/articles/cost-segregation-report-documents-needed/): Gather these documents before a cost segregation review: closing records, appraisals, invoices, photos, floor plans, depreciation schedules, and improvement history. - [Cost Segregation Study Cost: What Property Owners Should Expect](https://costseghelpai.com/articles/cost-segregation-study-cost/): Traditional cost segregation studies often cost thousands. Learn what drives pricing, when a study can still be worth it, and what to gather before paying a provider. - [Cost Segregation Study Example: What a Good Report Usually Contains](https://costseghelpai.com/articles/cost-segregation-study-example/): See the sections a cost segregation study packet should usually include: property facts, documents, photos, methodology, classifications, and review notes. - [Cost Segregation Study for Rental Property: Owner Checklist](https://costseghelpai.com/articles/cost-segregation-study-for-rental-property/): A practical checklist for rental property owners considering cost segregation, including basis, placed-in-service dates, photos, improvements, and CPA review questions. - [Short-Term Rental Cost Segregation: Questions Before You Order a Study](https://costseghelpai.com/articles/short-term-rental-cost-segregation/): Short-term rental owners often ask about cost segregation and bonus depreciation. Start with use, participation, basis, documents, and professional review. ## Priority topics - Cost segregation study cost and pricing. - Cost segregation study for rental property. - DIY cost segregation documentation and limits. - Cost segregation calculators and estimate quality. - Bonus depreciation and placed-in-service timing. - Short-term rental cost segregation. - Example cost segregation reports and required documents. - Rental property depreciation schedules. ## Primary-source policy Tax claims should cite IRS materials, Treasury guidance, tax forms and publications, or professional tax explanations where primary materials need context. Verify classification, valuation, bonus depreciation, amended-return choices, passive activity treatment, and audit support before filing.