IAAO | International Association of Assessing Officers 2026
The **IAAO Annual Conference** is the flagship gathering of the International Association of Assessing Officers, the professional body serving property assessment and valuation officials. The conference bills itself as the premier platform for sharing successes, discovering best practices, and learning from expert colleagues about the latest research in property appraisal and valuation. The 2026 edition takes place October 13–16 in Calgary, Alberta, Canada, at the Calgary TELUS Convention Centre. The event draws assessors, appraisers, tax administrators, mass-appraisal specialists, GIS and valuation-technology professionals, and vendors serving the assessment community from across North America and around the world. Each year, educational sessions, networking opportunities, events, and a varied exposition give assessment professionals the tools they need to succeed, and attendees interact with peers from across the country and around the globe. Attendees can earn continuing-education (CE) credits, preview the latest solutions in the exhibit hall, and take part in signature networking events. With a large and consistent turnout — nearly 1,700 people attended in 2025 — the conference is a valuable stop for anyone working in property tax, assessment administration, or mass appraisal who wants current research, practical education, and industry connections in one place.