Customer support
Order & report questions
Order status, file uploads, refunds, CPA-Ready Guarantee.
Editorial
Citation & corrections
Factual corrections, citation requests, journalist inquiries.
Phone
Speak with us directly
Mon–Fri, 9am–6pm Pacific. Voicemail returned same business day.
CPA partners
For accounting firms
Wholesale pricing, white-label reports, branded portals.
Mailing address
Cost Seg Smart LLC
5665 W. Wilshire Blvd #1244
Los Angeles, CA 90036
United States
Note: We don't provide individualized tax advice over email or phone. For questions about whether cost segregation is right for your specific San Diego STR situation, your CPA is the right resource. Every Cost Seg Smart report is built CPA-ready and includes a dedicated CPA Review Page.