Data sources

Each number on the site sits in a data file with its source and the date we last checked it. This page lists those sources. If a figure is wrong, tell us. We will fix it and log the change.

Federal tax, CPP and EI

Verified

  1. CRA T4127 Payroll Deductions Formulas, 123rd Edition (July 2026): CPP base contribution rate for 2027 announced April 28, 2026
  2. CRA – CPP contribution rates, maximums and exemptions
  3. CRA – Second additional CPP (CPP2) contribution rates and maximums
  4. ESDC – EI maternity and parental benefits: how much you could receive
  5. CRA – EI premium rates and maximums
  6. CRA – Indexation adjustment for personal income tax and benefit amounts
  7. Income Tax Act, R.S.C. 1985, c. 1 (5th Supp.), s. 150(1)(d) and s. 156.1(4): filing deadlines and balance-due day
  8. Canada Employment Insurance Commission – Canada Employment Insurance Commission confirms 2027 Employment Insurance premium rate (September 14, 2026)

Alberta

Verified

  1. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  2. CRA, Canadian income tax rates for individuals, current and previous years
  3. Government of Alberta, Personal income tax

British Columbia

Verified

  1. Government of British Columbia, Personal income tax rates (2026)
  2. Government of British Columbia, B.C. tax reduction credit
  3. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

Manitoba

Verified

  1. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  2. Manitoba Finance, Personal income taxes
  3. CRA, Canadian income tax rates for individuals, current and previous years

New Brunswick

Verified

  1. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  2. CRA, T4032 Payroll Deductions Tables, New Brunswick (January 2026)
  3. Government of New Brunswick, Personal income tax

Newfoundland and Labrador

Verified

  1. Newfoundland and Labrador Department of Finance, Personal income tax
  2. Newfoundland and Labrador, Bill 16 (2026), An Act to Amend the Income Tax Act, 2000
  3. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

Nova Scotia

Verified

  1. Nova Scotia Finance and Treasury Board, Personal income tax indexation update for 2026
  2. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  3. Nova Scotia Income Tax Act (consolidated), s. 35 low income tax reduction

Northwest Territories

Verified

  1. CRA, T4032 Payroll Deductions Tables, Northwest Territories (January 2026)
  2. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

Nunavut

Verified

  1. Government of Nunavut, January 2026 Tax Rate Sheet
  2. CRA, T4032 Payroll Deductions Tables, Nunavut (January 2026)
  3. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

Ontario

Verified

  1. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  2. CRA, Canadian income tax rates for individuals, current and previous years
  3. Ontario Ministry of Finance, Personal income tax rates and credits (2026 dataset)

Prince Edward Island

Verified

  1. Prince Edward Island Income Tax Act (consolidated 2026)
  2. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

Quebec

Verified

  1. Revenu Québec, TP-1015.F-V (2026-01) Formulas to Calculate Source Deductions and Contributions
  2. Retraite Québec, Québec Pension Plan Figures 2026
  3. Gouvernement du Québec (Québec.ca), Taux de cotisations au Régime québécois d'assurance parentale (RQAP) — page updated 19 March 2026
  4. Ministère des Finances du Québec, Parameters of the Personal Income Tax System for 2026 (November 2025)
  5. Canada Revenue Agency, EI premium rates and maximums

Saskatchewan

Verified

  1. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)
  2. CRA, Canadian income tax rates for individuals, current and previous years
  3. Government of Saskatchewan, Personal income tax

Yukon

Verified

  1. CRA, T4032 Payroll Deductions Tables, Yukon (January 2026)
  2. CRA, T4127 Payroll Deductions Formulas, 123rd edition (July 1, 2026)

TFSA, RRSP and FHSA limits

Verified

  1. CRA – Calculate your TFSA contribution room (modified 2026-02-20)
  2. CRA – MP, DB, RRSP, DPSP, ALDA, TFSA limits, YMPE and the YAMPE (modified 2025-12-01)
  3. CRA – How contributions affect your RRSP deduction limit (modified 2026-01-29)
  4. CRA – RRSP contribution receipt: Contribution year (modified 2026-01-29)
  5. CRA – Participating in your FHSAs (modified 2026-02-02)
  6. CRA – Opening your FHSAs (modified 2026-02-10)
  7. CRA – Closing your FHSA (modified 2026-02-02)
  8. CRA – What is the Home Buyers' Plan (withdrawal limit $60,000; repayment relief for first withdrawals 2026 to 2028)
  9. CRA – Lifelong Learning Plan

Mortgages, CMHC and interest rates

Verified

  1. CMHC – Premium information for homeowner and small rental loans
  2. CMHC – Notice: CMHC Revises Homeowner Mortgage Loan Insurance Premiums (2024-06-05)
  3. Department of Finance Canada – Boldest mortgage reforms in decades come into force today (2024-12-15)
  4. Department of Finance Canada – Delivering the Boldest Mortgage Reforms in Decades (backgrounder, Sept 2024)
  5. FCAC – How much you need for a down payment (modified 2025-10-15)
  6. CMHC – CMHC Purchase (product page)
  7. Department of Finance Canada – Statement by the DPM and Minister of Finance on the Canadian housing market (2022-12-15)
  8. OSFI – Minimum qualifying rate for uninsured mortgages (modified 2026-01-29)
  9. Justice Laws – Interest Act, R.S.C. 1985, c. I-15, s. 6
  10. Bank of Canada – Bank of Canada maintains the policy rate at 2¼% (2026-09-02)
  11. Bank of Canada Valet – V80691335 Conventional mortgage 5-year (chartered banks)
  12. Ontario – Retail Sales Tax: Insurance and benefits plans (updated 2025-06-30)
  13. Saskatchewan Finance – PST-73 Insurance Contracts (revised April 2020)
  14. Manitoba Finance – RST Bulletin No. 061 Insurance (revised July 2020)
  15. CMHC – Debt service calculator (GDS 39% / TDS 44% for insured mortgages; 32% housing-cost rule of thumb)
  16. FCAC – Buying a home (home buying costs)
  17. FCAC – Paying off your mortgage faster (prepayment privileges)
  18. Ontario – Rent increase guideline (2026: 2.1%)
  19. Government of British Columbia – Rent increases (2026 maximum: 2.3%)
  20. Bank of Canada – Bank of Canada publishes its 2026 schedule for policy interest rate announcements and other major publications (2025-08-01)
  21. Bank of Canada – Bank of Canada publishes its 2027 schedule for policy interest rate announcements and other major publications (2026-07-27)