Compliance
Understanding CRA’s Q3 2026 Prescribed Interest Rates: What You Need to Know
The Canada Revenue Agency just released its interest rates for July-September 2026 — crucial knowledge for taxpayers with overdue balances or expecting refunds.
By NomadicTax Research Team • 5-8 min read • August 23, 2026
## What Are Prescribed Interest Rates?
Prescribed interest rates are the rates CRA uses in four main contexts:
- Interest charged on **overdue taxes, CPP contributions, and EI premiums** when you owe CRA.
- Interest paid by CRA on **overpayments** to corporate and non-corporate taxpayers.
- Rates for calculating **taxable benefits** from interest-free or low-interest employee/shareholder loans.
- Rates used by corporate taxpayers for interest on certain loans or indebtedness.
CRA sets these quarterly. Knowing them helps with tax planning, cash-flow, and assessing borrowing vs paying early. ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai))
## The Current Rates (July 1–September 30, 2026)
| Situation | Rate |
|---|---|
| Charges on overdue taxes / CPP / EI | **7.00%** ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai)) |
| Overpayments – corporate taxpayers | **3.00%** ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai)) |
| Overpayments – non-corporate taxpayers | **5.00%** ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai)) |
| Taxable benefits (employee/shareholder loans) | **3.00%** ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai)) |
| Corporate loans / indebtedness | **6.30%** ([canada.ca](https://www.canada.ca/en/revenue-agency/services/tax/prescribed-interest-rates/2026-q3.html?utm_source=openai)) |
## Why It Matters — Practical Implications
- If you **owe CRA**, those balances will grow at **7% per annum**. If possible, paying sooner reduces interest costs.
- **Refunds or credits**, whether corporate or personal, will have modest returns — if you can anticipate overpayments, holding off or investing may yield more.
- Employees benefiting from low-interest or interest-free loans: the taxable benefit will be computed using the prescribed rate (3%). High rates can increase taxable income significantly.
- For corporate financing decisions—-borrowing vs distributing capital vs reinvestment—compare cost of debt to what federal deductions and credits offer.
## How to Incorporate into Your Tax Planning
- Always model scenarios of paying earlier vs using capital elsewhere; with rates high, the cost of waiting can outweigh other uses.
- Non-corporate individuals anticipating a large refund should confirm if filing early impacts the interest amounts.
- Businesses considering offering low-interest loans internally should carefully compute the accessible benefit to avoid surprises.
- When borrowing, ensure you take account of the current corporate indebtedness rate (6.30%) and deductibility of interest to evaluate real cost.
## Example
Suppose Sarah, a sole proprietor, owes $20,000 in taxes at the end of June 2026: she will incur roughly **$1,167** in interest over 3 months (calculated as $20,000 × 7.00% × 3/12). If she can pay in June instead, she saves this. Conversely, if she’s expecting a large refund, knowing the overpayment rate (5.00%) helps her decide whether to keep cash in bank longer or pay down liabilities.
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**Key takeaway:** The new prescribed interest rates significantly affect both liability management and refund expectations. Keep these numbers in mind when planning payments, loans, or investments — especially with higher cost of money contexts.