Canada Mortgage Default Insurance Calculator
Estimate whether a Canadian purchase may need mortgage default insurance, the premium added to the mortgage, the cash premium-tax placeholder, and how 10%, 15%, or 20% down changes the result.
Enter the purchase and down-payment assumptions
Estimate whether a Canadian purchase may need mortgage default insurance, the financed premium, and the cash premium-tax placeholder.
Planning estimate only. Results update locally in your browser.
Explain the premium and cash tradeoff
Separate the financed default-insurance premium from cash paid at closing, then compare common down-payment checkpoints.
Educational estimate only — not financial, legal, tax, mortgage, or lending advice. Confirm current insurer rules, lender treatment, premium tax, and closing documents with qualified professionals.
What this means
This scenario estimates a $18,135 default-insurance premium. If financed, mortgage principal rises to $603,135, while the premium-tax placeholder adds $1,451 to cash needed before other closing costs.
Decision memo
Copy or print the insurance check without saving purchase details or putting them in the URL.
| Insurance check | Estimate | Why it matters |
|---|---|---|
| Minimum down payment | $40,000 | The entered down payment meets the basic Canadian minimum estimate. |
| Loan-to-value | 90% | Canadian default insurance usually applies above 80% LTV when other insured-purchase rules are met. |
| Estimated premium rate | 3.1% | Premium rate is applied to the base mortgage amount before the premium is added to principal. |
| Cash premium tax placeholder | $1,451 | Uses the editable 8% tax placeholder; verify whether and how premium tax applies in your province. |
| Extra down to avoid insurance | $65,000 | A 20% down payment is $130,000 for this price. |
- Estimate
- $40,000
- Why it matters
- The entered down payment meets the basic Canadian minimum estimate.
- Estimate
- 90%
- Why it matters
- Canadian default insurance usually applies above 80% LTV when other insured-purchase rules are met.
- Estimate
- 3.1%
- Why it matters
- Premium rate is applied to the base mortgage amount before the premium is added to principal.
- Estimate
- $1,451
- Why it matters
- Uses the editable 8% tax placeholder; verify whether and how premium tax applies in your province.
- Estimate
- $65,000
- Why it matters
- A 20% down payment is $130,000 for this price.
| Down payment scenario | LTV | Premium rate | Insurance premium | Premium tax cash | Mortgage principal | Status |
|---|---|---|---|---|---|---|
| 6.15% down ($39,975) | 93.8% | 0% | $0 | $0 | $610,025 | Below minimum |
| 10% down ($65,000) | 90% | 3.1% | $18,135 | $1,451 | $603,135 | Insured estimate |
| 15% down ($97,500) | 85% | 2.8% | $15,470 | $1,238 | $567,970 | Insured estimate |
| 20% down ($130,000) | 80% | 0% | $0 | $0 | $520,000 | No premium estimated |
| 25% down ($162,500) | 75% | 0% | $0 | $0 | $487,500 | No premium estimated |
- LTV
- 93.8%
- Premium rate
- 0%
- Insurance premium
- $0
- Premium tax cash
- $0
- Mortgage principal
- $610,025
- Status
- Below minimum
- LTV
- 90%
- Premium rate
- 3.1%
- Insurance premium
- $18,135
- Premium tax cash
- $1,451
- Mortgage principal
- $603,135
- Status
- Insured estimate
- LTV
- 85%
- Premium rate
- 2.8%
- Insurance premium
- $15,470
- Premium tax cash
- $1,238
- Mortgage principal
- $567,970
- Status
- Insured estimate
- LTV
- 80%
- Premium rate
- 0%
- Insurance premium
- $0
- Premium tax cash
- $0
- Mortgage principal
- $520,000
- Status
- No premium estimated
- LTV
- 75%
- Premium rate
- 0%
- Insurance premium
- $0
- Premium tax cash
- $0
- Mortgage principal
- $487,500
- Status
- No premium estimated
Default-insurance caveats
- Default insurance is generally estimated for Canadian purchases below 20% down when the purchase price is below $1.5M and the basic minimum down payment is met.
- The premium is commonly added to the mortgage principal; any provincial sales tax on the premium is often payable in cash at closing, so this worksheet keeps premium tax separate.
- Premium rates, eligibility, insurer policies, amortization limits, property type, occupancy, and lender treatment can change. Verify with a lender or insurer before acting.
Ask before you waive financing
- Which insurer and premium tier will the lender use for this property and amortization?
- Is the premium added to principal, paid upfront, or treated differently by the lender?
- Does provincial sales tax apply to the premium, and is it due in cash at closing?
- Would a larger down payment meaningfully reduce payment, premium, rate, or approval risk?
What this calculator includes
- Basic Canadian minimum down-payment estimate and shortfall check.
- Loan-to-value and default-insurance premium estimate for insured purchase scenarios.
- Editable premium-tax placeholder kept separate from the financed mortgage premium.
- Down-payment comparison rows for common minimum, 10%, 15%, 20%, and 25% checkpoints.
- Copyable worksheet summary for lender calls without storing your inputs.
Important caveats
Canadian default-insurance rules depend on insurer, lender, property type, occupancy, amortization, purchase price, down payment, provincial tax treatment, and current policy. Treat this as a planning worksheet, not an approval, quote, or financial advice.
Get a better answer from the Canada Mortgage Default Insurance Calculator
- Start with the example values to see how the tool behaves.
- Swap in your own numbers, even if they are rough first-pass estimates.
- Change one input at a time so you can see what actually moves the result.
What the result means
The result is a home-budget estimate, not a lender promise. It helps you see the monthly payment, cash pressure, and interest tradeoff before you shop or commit.
How to use it
Compare a comfortable case with a stretched case. The gap tells you how much room you have if the rate, taxes, insurance, or closing costs move.
What can change it
Principal and interest are only part of home cost. Taxes, insurance, HOA or condo fees, repairs, mortgage insurance, and closing costs can change the real answer fast.
Good for
Estimate a CMHC-style default-insurance premium.
Check next
Compare your result with Canada Mortgage Payment Calculator, Mortgage Affordability Calculator Canada, Canada Closing Cost Calculator when you want more context.
Best habit
Run a conservative case and an optimistic case. The gap between them is often more useful than a single answer.
Common uses
- Estimate a CMHC-style default-insurance premium.
- Compare 10%, 15%, and 20% down-payment scenarios.
- Separate financed premium from cash premium-tax placeholders.
Common questions
Is the Canada Mortgage Default Insurance Calculator private?
Yes. CalcShelf calculators run without an account, do not save calculator entries, and do not put raw inputs into shareable URLs or analytics events.
How accurate is the Canada Mortgage Default Insurance Calculator?
It is a home-finance estimate, not a lender quote. Rates, taxes, insurance, fees, insurance premiums, and underwriting rules can change the real payment or approval result.
What should I check after using the Canada Mortgage Default Insurance Calculator?
Verify rate, fees, taxes, insurance, lender rules, cash to close, and any mortgage insurance before acting.
Which calculator should I try next?
Use the related calculators below to cross-check the same decision from another angle before you act.
Method behind the estimate
Mortgage calculators use standard amortization and payment math with user-entered rates, terms, taxes, insurance, and fee assumptions.
Why the detail matters
Results are estimates. Lender rules, payment frequency, penalties, taxes, mortgage insurance, closing costs, and local law can change the real answer.
Privacy guardrail
Your calculator values are for you. CalcShelf does not require an account, save calculator entries, put your numbers into shareable URLs, or use raw inputs as analytics events.
Copy or print safely
Use any copy, print, or worksheet controls as local handoff tools for your own notes, supplier calls, lender questions, or implementation checklist. They are there to help you explain the result to a human.
Before acting
Treat the result as a decision draft, not a verdict. Recheck the source numbers, run a downside case, and verify the real-world rule, quote, label, or spec that controls the final answer.
Last reviewed: May 11, 2026. See methodology and editorial policy for formulas, assumptions, rounding, review approach, and limitations. For borrowing decisions, confirm lender rules, rates, taxes, fees, and legal requirements.