Source verification reports

Last verified: 2026-06-06 · by Fiscal Moose

Every number in a Fiscal Moose calculator is read from a versioned data file that records the official source it came from, the date it took effect, and the date we last confirmed it. These reports are the public record of that discipline: dated snapshots of what we checked, the sources behind each calculator, what changed since the last check, and what did not. They are how we prove the maintenance work, rather than just claiming it.

What these reports are, and are not. Fiscal Moose verifies calculator data against public official sources and tests formulas against documented reference cases. This is not CPA review, legal review, or professional financial advice, and "verification" here means our own source-checking and formula testing, not an audit in the regulated accounting sense. The calculators are estimates. See the disclaimer for what they do and do not account for.

Published reports

• Source Verification Report: June 2026 Published 2026-06-06 · 2026 tax year · all eight calculators

  First public verification report. Covers the data sources behind every calculator (CRA, CMHC, the Bank of Canada, provincial finance ministries, and Statistics Canada), the 2026 figures we confirmed, and the formula reference cases each tool is tested against.

How often we re-verify

Canadian personal-finance data changes on predictable schedules, so our verification cadence follows them: every January (CRA indexation, new contribution limits, the January edition of the T4127 payroll formulas), March through April (provincial budgets), every July (the July T4127 edition), within 24 hours of each Bank of Canada rate decision, and within seven days for any off-schedule change. Each verification pass produces a new dated report here. The full cadence is documented on the methodology page.

You can also follow individual changes as they happen on the changelog.