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In forceMortgage insurers: actuarialLast checked 11 November 2026

Appointed actuary's report: supplementary tables, mortgage insurers (1023)

A regulatory return listed by the Office of the Superintendent of Financial Institutions (OSFI), Canada.

A workbook of supplementary data that each mortgage insurer submits with the appointed actuary's report, with specific data elements in specific formats (Tables 1 to 18). Source

Official title: AAR Supplementary Tables - MI (1023)

The facts

Who files
OSFI's reporting requirements tables list it for: Canadian mortgage insurers. Source
How often
Annual. Source
Deadline
Annual filing: within 60 days. Subject to the Late and Erroneous Filing Penalties (LEFP) framework. Source
Format
Excel. An Excel workbook filed through RRS with the appointed actuary's report. Section V lists AAR supplementary tables under code OSFI987. Source
How it is filed
Filing routes recorded for the OSFI: Regulatory Reporting System (RRS); Regulatory Data Hub (RDH). See how firms file with the OSFI.
Status
In forceFiled in the Regulatory Reporting System (RRS). OSFI's Data Collection Modernization initiative will replace RRS with a new platform, the Regulatory Data Hub (RDH); OSFI says the launch is now targeted for spring 2027 and asks filers to keep using RRS until then. Financial filing for insurers moves to RDH in Release 3; OSFI says more details on financial returns will come in 2027. Source
Group
Mortgage insurers: actuarial

Templates (18)

The tables and forms inside the return. Plain name first, the OSFI's code in brackets.

  • Portfolio Reporting (Table 1)
  • Reference Discount Curve (Table 2)
  • Confidence Level and Confidence Level Base (Table 3)
  • Gross Risk Adjustment (Table 4)
  • Ceded Risk Adjustment (Table 5)
  • Gross RA Cost of Capital Approach for LIC (Table 6)
  • Ceded RA Cost of Capital Approach for LIC (Table 7)
  • Gross RA Cost of Capital Approach for LRC under GMA including onerous groups under PAA (Table 8)
  • Ceded RA Cost of Capital Approach for LRC under GMA including onerous groups under PAA (Table 9)
  • Comparison of Gross Actual Experience with Gross Expected Experience at Prior Year-End Valuation on an Accident Year Basis (Table 10)
  • Comparison of Gross Actual Experience with Gross Expected Experience at Prior Year-End Valuation on an Underwriting/Policy Year Basis (Table 11)
  • Comparison of Actual Experience with Expected Experience at Prior Year-End Valuation on an Accident Year Basis for Ceded or Net (Table 12)
  • Comparison of Actual Experience With Expected Experience at Prior Year-End Valuation on an Underwriting/Policy Year for Ceded or Net (Table 13)
  • Coverage Units (Table 14)
  • Annual Estimate of Future Cash Flows (Undiscounted) for LRC (Table 15)
  • Discount Rates Sensitivity Test (Table 16)
Show all 18 templates
  • Unemployment Rate (UR) Sensitivity (Table 17)
  • House Price Change Sensitivity (Table 18)

Schedules (worksheets) in OSFI1023-BSIF1023-2026-memo-mi-supplementary-table-supplementaire-ah-en.xlsx, named from the workbook's table of contents or schedule titles. Source

Validation rules

105 rules, as counted from the OSFI's published material. They are written for people to read; software cannot run them as published. Source

How they are written: Sheet inside the template workbook with checks written in words.

The rules, on osfi-bsif.gc.ca

How they were counted

Numbered rows in the 'Data Validation' sheet of OSFI1023-BSIF1023-2026-memo-mi-supplementary-table-supplementaire-ah-en.xlsx.

Counts are in the OSFI's own unit, so they are not comparable with other regulators' counts.

Public data

No published data from this return was found. No publication of data from this return was found on OSFI's reporting or open data pages. Source

Official documents (5)

The OSFI's own files, with the size and SHA-256 fingerprint of each as downloaded on 11 November 2026, so anyone can tell whether a copy is the same version.

Sources

Every page and document this return's facts were read from.

Knowing exactly what is collected, in what format and under which rules is the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.

Line4's text and records here are free to reuse under CC BY 4.0. Please credit: “Source: Line4 regulatory submissions library (CC BY 4.0), https://www.line4.ai”. The regulators' documents, forms, taxonomies, rules and data belong to them: see OSFI's reuse terms. This describes what regulators publish. It is not legal or regulatory advice: always rely on the regulator's own text.

Last checked 11 November 2026.