Methodology Appendix

Source dataset

The Government of Ontario publishes the Public Accounts of Ontario — Detailed Schedule of Payments annually. The dataset lists payments of $10,000 or more made by every ministry to every recipient in a given fiscal year. It is published under the Financial Administration Act, R.S.O. 1990, c. F.12.

The dataset is hosted at:

data.ontario.ca/dataset/public-accounts-detailed-schedule-of-payments

Each fiscal year has its own CSV/XLSX file. The fiscal year covers April 1 to March 31 (e.g., 2024-25 covers April 1, 2024 through March 31, 2025).

Aggregation procedure

For each fiscal year file from 2017-18 through 2024-25 (eight files total):

1. Filter recipient name for “AccertaClaim Servicorp Inc.” (variants: AccertaClaim, Accerta Claim, etc.).
2. Filter recipient name for “Accerta Services Inc.” (variants: Accerta Services, Accerta Inc., etc.).
3. Sum payments across all ministries (MCCSS, MOH, MGCS, MOL, etc.) within each fiscal year.
4. Record per-entity totals and combined totals for each fiscal year.
5. Sum across the eight fiscal years for the cumulative figure.
6. Compute the year-over-year growth rate for Accerta Services Inc. specifically (2021-22 first non-zero year through 2024-25).

Year-by-year line items per ministry (MCCSS, MOH, MGCS, etc.) are available in the Ontario Public Accounts Detailed Schedule of Payments dataset and can be reproduced by filtering the dataset for AccertaClaim Servicorp Inc. and Accerta Services Inc. across fiscal years 2017-18 through 2024-25.

Interpretation notes

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  Inclusive of all ministries. The figure includes payments from any Ontario ministry, not only MCCSS. Accerta administers government-sponsored health benefit programs, and payments appear in multiple ministries depending on the program.

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  $10,000 disclosure threshold. The Public Accounts dataset reports payments of $10,000 or more. Smaller payments are not included. Aggregate figures could be marginally higher if all sub-threshold payments were included, but they would not change materially.

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  Pass-through versus retained revenue. Some payments to Accerta entities are administration fees retained by the company. Others are pass-through payments where the company processes claims on behalf of beneficiaries, and the dollar value flows on to clinicians, dental practices, etc. The Public Accounts dataset does not distinguish between these. The aggregate figure represents the total dollar value of payments made to Accerta entities; it does not represent profit, revenue, or retained income.

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  5,747% growth context. The growth rate is calculated from a low-base year (2021-22, when Accerta Services Inc. was newly incorporated) to a high-base year (2024-25, when AccessOAP administration was fully ramped). Such growth rates are common when a corporate entity is created specifically to administer a contract and then ramps to full operating scale. It is reported as a factual measure of the trajectory, not as a comparable performance metric.

Sources

1. Government of Ontario, Public Accounts of Ontario — Detailed Schedule of Payments, fiscal years 2017-18 through 2024-25, data.ontario.ca/dataset/public-accounts-detailed-schedule-of-payments.
2. Government of Ontario, Financial Administration Act, R.S.O. 1990, c. F.12.
3. Corporations Canada, Federal Corporations № 3866378 (AccertaClaim Servicorp Inc.) and № 13426769 (Accerta Services Inc.).
4. Parent article: Accerta’s Federal Lobbying Record: From Dental Care to the National Autism Strategy.