Municipal Property Assessment

What Municipal Property Assessment does

Municipal Property Assessment Corporation (MPAC) is an independent, not-for-profit corporation established under the Municipal Property Assessment Corporation Act and operating under Ontario's Assessment Act. Its statutory mandate is to assess and classify every property in Ontario — over 5.7 million properties with an aggregate estimated value exceeding $3.2 trillion — making it the largest assessment jurisdiction in North America. MPAC's outputs form the foundation for municipal property tax calculation across the province and are funded by all Ontario municipalities through a recurring municipal contribution model.

MPAC's product portfolio centres on three customer-facing platforms: AboutMyProperty™, an online portal where property owners view assessments, compare values, and submit information requests; Municipal Connect™, a digital service platform providing Ontario municipalities with assessment data and tax-application tools; and PropertyLine™, a commercial property data and analytics service sold to financial services firms, appraisers, utilities, government bodies, and real estate professionals. Underlying these platforms is MPAC's comprehensive property database and its "Three Approaches to Value" methodology (sales comparison, cost, and income approaches). Operational products include the annual Property Income and Expense Return (PIER) campaign (35,000+ request letters per year), the Request for Reconsideration appeal process, and a new PropTx-MPAC integrated subscription (announced April 2026) that combines MPAC data with MLS® listings for professional appraisers. Distribution is province-wide through 25+ physical assessment offices plus digital channels.

Commercially, MPAC operates a hybrid revenue model: a stable base of municipal funding (subscription/recurring) finances the statutory assessment function, while data monetisation and subscription services — particularly the PropTx partnership, PropertyLine™, MPAC Home Value Reports, and recent market-insights products like the Business Properties Report — generate incremental commercial revenue. Its customer base spans five segments: Ontario municipalities (government, vertical), Ontario property owners (consumer, horizontal), professional appraisers (persona, served via AIC/CNAREA), REALTORS® and the real estate industry (vertical), and government/institutional data buyers including Elections Ontario and Elections Canada. MPAC employs 1,001-5,000 staff and is governed by a 13-member Board of Directors accountable to the Province, municipalities, and property taxpayers.

Name

Municipal Property Assessment

Legal name

Municipal Property Assessment Corporation

Website

https://mpac.ca

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

MPAC is a not-for-profit corporation that assesses and classifies all 5.7 million properties in Ontario under the Assessment Act, providing the statutory property valuation foundation for municipal property taxes across the province.

Ownership category

akta.pro rank

Product category

Property Assessment Services

NAICS

Offices of Real Estate Appraisers (531320)

SIC

Non-Operating Establishments (9995)

akta.pro primary industry

Real Estate Valuation & Appraisal (BPAHANAC)

akta.pro secondary industries

Residential Property Appraisal (BPAJAKAA), Commercial Property Appraisal (BPAJAKAB), Industrial Property Appraisal (BPAJAKAC), Appraisal Review & Quality Assurance Services (BPAJAKAN), Municipal Tax & Revenue Administration (Local) (BPAIACAD)

Keywords

• Property assessment services
• Real estate valuation
• Property tax administration
• Assessment data solutions
• Property market analytics

Headquarters

HQ city

Pickering

HQ country

Canada

HQ region

North America

Offices27 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Municipal Funding: MPAC is funded by all Ontario municipalities as a not-for-profit corporation. The assessment system provides the foundation for property tax calculation across the province.
2. Commercial Data Solutions: Revenue generated from selling property data, insights, and analytics to commercial clients including financial services, real estate, utilities, government, retail, and property professionals.
3. Subscription Services: Subscription-based access to MPAC property data for professional appraisers and real estate professionals, including the partnership with PropTx for integrated MLS and MPAC data platforms.

Pricing tiers

Go-to-market motion2 records

Distribution channels7 records

Marketing channels11 records

Core offering

MPAC assesses and classifies all 5.7 million properties in Ontario under the Assessment Act, producing Property Assessment Notices that form the foundation for municipal property tax calculation. The corporation delivers this through customer-facing platforms (AboutMyProperty™, Municipal Connect™, PropertyLine™), annual income data collection campaigns, and a commercial property data subscription service for appraisers and real estate professionals.

Product overview

MPAC (Municipal Property Assessment Corporation) is an independent not-for-profit corporation that assesses and classifies all properties in Ontario. The company's portfolio includes three core customer-facing platforms: AboutMyProperty™ (for homeowners and property owners to view assessments and submit information), PropertyLine™ (commercial data solutions for real estate, financial, and government clients), and Municipal Connect™ (for Ontario municipalities). Additional products include MPAC Home Value Reports (residential valuation reports), the Housing Inventory Interactive Map (market insights tool), and the Business Properties Report (commercial sector analytics). The PropTx-MPAC partnership adds a unified appraisal subscription combining MPAC data with MLS® listings for professional appraisers. Core assessment processes include the Property Income and Expense Return (PIER) campaign and Request for Reconsideration (RfR) appeals.

Differentiator

Problem solved

Functional benefit

Brands

• AboutMyProperty™: Online portal for property owners to view their property information and assessment details
• propertyline™
• Municipal Connect™

Products and services

• AboutMyProperty™ Online portal allowing Ontario property owners to view their property assessment information, compare their property to others in their neighbourhood, submit assessment information requests, and receive Property Assessment Notices digitally.
• Municipal Connect™ Digital service platform providing Ontario municipalities with access to property assessment data, tax applications, and municipal support services. Includes tools for tax rate setting and property tax adjustments.
• PropertyLine™ Commercial data solution providing property data, analytics, and reports to real estate professionals, financial services firms, utilities, government agencies, retail, and property professionals.
• PropTx-MPAC Residential Appraisal Subscription Unified subscription service for professional appraisers that integrates PropTx MLS® listing data with MPAC property data (including residential square footage) into a single platform based on the REALM MLS® application. Available to eligible AIC and CNAREA members, with optional fee-based retrospective data reports via built-in e-commerce.
• Property Income and Expense Return (PIER) Annual assessment information request campaign where MPAC collects rental, income, and expense information from income-generating properties including retail, commercial, golf courses, hotels, motels, multi-residential, retirement homes, and industrial malls. Over 35,000 request letters are sent each year.
• Request for Reconsideration (RfR) Formal statutory process allowing property owners to dispute their property assessment. Property owners can file a Request for Reconsideration if they disagree with their assessed value, classification, or tax liability.
• Affordable Rental Housing Subclass Administration Regulatory/administrative product through which MPAC implements the Ontario Government's optional affordable rental housing subclass for both multi-residential and new multi-residential property classes, including eligibility determination via the PIER campaign and issuance of Special Amended Notices.
• Business Properties Report Market insights report examining property activity over five years (2021–2025) across six key commercial sectors: retail, standard industrial, small commercial, office, multi-residential, and hospitality. Identifies trends in development activity, sales patterns, and income performance across Ontario.

Quantifiable outcome

• Over 5.7 million properties assessed and classified in compliance with the Assessment Act
• +3 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• PropTx Innovations Inc.coreTechnology or Integration · 1 April 2026Strategic partnership to deliver the most comprehensive residential appraisal subscription service in Ontario. Combines PropTx MLS listing data with MPAC property data including residential square footage into a single integrated platform based on the REALM MLS application. The partnership eliminates the need for multiple subscriptions and ad hoc report purchases for professional appraisers.
• Appraisal Institute of Canada (AIC)coreGTM or Marketing PartnerProfessional association representing appraisers in Canada. AIC members receive access to the PropTx-MPAC integrated subscription service for property valuations.
• Canadian National Association of Real Estate Appraisers (CNAREA)coreGTM or Marketing PartnerProfessional association for real estate appraisers. CNAREA members access the integrated PropTx-MPAC subscription service for comprehensive property data.
• Greater Toronto's Top EmployersminorOthersAnnual employer recognition program. MPAC recognized as one of Greater Toronto's Top Employers for 2026.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• BC Assessment: Independent provincial Crown corporation responsible for assessing all properties in British Columbia under similar statutory authority. Closest functional peer to MPAC in Canada, with comparable mandate, scale, and municipal-customer base.
• Saskatchewan Assessment Management Agency (SAMA): Saskatchewan's property assessment agency, responsible for valuing all properties in the province for property tax purposes. Directly comparable to MPAC in mandate and operating model, differing only in geography and property-type mix.

Regional players

• Teranet: Ontario's land registry and property data provider (including Teranet National Land Record Services). Operates in the same Ontario geography and works with overlapping property datasets, making it the most direct data-side peer to MPAC's commercial data offerings.

Broad incumbents

• Altus Group: Canadian-headquartered provider of commercial real estate data, analytics, and advisory services. Comparable to MPAC's PropertyLine™ commercial data solutions and Business Properties Report product line on the CRE intelligence side.
• CoreLogic: Large global property data and analytics platform serving lenders, appraisers, governments, and real estate professionals. Closest broad incumbent peer to MPAC's commercial data and valuation workflow products across North America.
• Zillow Group: Consumer- and professional-facing real estate data platform with the Zestimate automated valuation model. Comparable to MPAC at the mass-market property intelligence and consumer self-service layer, though primarily US-focused.
• CoStar Group: Dominant commercial real estate information, analytics, and marketplace platform. Comparable to MPAC's commercial property data solutions and Business Properties Report across retail, office, industrial, and hospitality segments.
• Kroll (formerly Duff & Phelps): Global valuation, advisory, and risk services firm. Comparable to MPAC at the high-end appraisal, complex-property valuation, and tax-related valuation services layer, particularly for large and special-purpose properties.

Emerging players

• HouseCanary: AI-driven residential property valuation and analytics platform. Emerges as the most direct technology-disruption peer to traditional assessors like MPAC, with overlapping appraiser and institutional customer segments.
• Reonomy: Commercial real estate intelligence platform aggregating property, owner, and transaction data. Comparable to MPAC's commercial data monetization efforts targeting brokers, lenders, and CRE professionals with actionable property insights.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/MPAC_Ontario
• YouTubeyoutube.com/channel/UCTOMe6hNkts6kUc0yqGff1A
• Facebookfacebook.com/MPACOntario
• LinkedInlinkedin.com/company/mpac

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Municipal Property Assessment