Powered by Claude — your 24/7 GTA mortgage specialist
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Hello! I'm ClearKey's mortgage AI, trained on Canadian mortgage rules, OSFI stress test guidelines, and GTA market realities.
Run the calculator on the left, or ask me anything — from first-time buyer programs to self-employed qualification strategies. I'm here to give you straight answers.
Common questions
GDS / TDS Qualifier
Enter your full financial picture to see your exact ratios — and what to fix if they're off.
Income
$
$
$
Subject Property
$
$
$
$
$
Monthly Debt Obligations
$/mo
$/mo
$/mo
$/mo
$/mo
$/mo
Other Properties (if any)
$/mo
$/mo
GDS Ratio
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Limit: 39%
TDS Ratio
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Limit: 44%
How to bring your ratios into range
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Powered by Claude — your 24/7 GTA mortgage specialist
CK
Enter your numbers above and I'll help interpret your GDS/TDS results — or ask me anything about improving your ratios, debt consolidation strategies, or how lenders view your specific situation.
Common questions
Income Qualifier
Calculate your qualifying income based on your employment type — following Canadian lender and OSFI guidelines.
Employment Type
Guaranteed Employment Income
$
Overtime & Bonuses — Stable Base
Use when base salary has not varied significantly year-over-year. Qualifying income = base + average 2-year overtime/bonus.
$
$
$
Overtime & Bonuses — Variable Base
Use when base salary has changed year-over-year. Qualifying = last year's base + lesser of 2-year average OT or current-year OT.
$
$
$
$
Incorporated Business Owner
T1 lines 10100 + 12000 (salary + dividends). Qualifying income = average of last 2 years.
$
$
Self-Employed / Commission / Small Business
T1 lines 13500–14300. Qualifying = average of last 2 years. With Genworth program, an additional 15% uplift may apply.
$
$
Seasonal Employment
Qualifying income = average of last 2 years (salary + EI combined).
$
$
Support Payments Received
Lenders apply 70% of court-ordered support payments to qualifying income.
$
$
RRIF Income
Qualifying amount = lesser of last year's withdrawal or amount sustainable over 10 years.
$
$
Qualifying Income
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Select your income type and enter your numbers — I'll help you understand how lenders will view your income and what you can do to maximize your qualifying amount.
Common questions
CMHC Insurance & Maximum LTV
Calculate your mortgage insurance premium, see the maximum you can borrow, and find the down payment sweet spot for your situation.
Property Details
$
$
20.0%
5%10%15%20% ✓35%
Insurance & LTV Summary
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Enter your property details and I'll explain exactly what your CMHC premium means, when it makes sense to put more down, and how LTV rules differ by property type in the GTA.
Common questions
Amortization Breakdown
See exactly how your mortgage is paid off over time — total interest paid, equity built, and the dramatic impact of prepayments.
Mortgage Details
$
%/ yr
$
Payment Summary
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Enter your mortgage details and I'll help you understand where your money is really going — and the smartest strategies to pay it off faster and save thousands in interest.
Common questions
Rent vs Buy — GTA Analysis
A real comparison factoring in appreciation, opportunity cost, and the true cost of ownership anywhere in Ontario.
Buying Scenario
$
$
%/ yr
$
$/mo
%/ yr
Long-run GTA benchmark. Accounts for periods of both strong growth and correction.
Renting Scenario
$/mo
%/ yr
Assumptions
%/ yr
Approximate long-run return for a diversified equity ETF like XEQT or VEQT, before tax.
After 10 Years
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The rent vs buy decision in the GTA is more nuanced than most calculators show. Enter your numbers and I'll give you a full picture — including what the math often misses.
Common questions
Rate Tracker
Live Bank of Canada data + current fixed and variable rates from Canada's major lenders — updated every time you visit.
Bank of Canada — Live
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Your rate and payment stay the same for the full term. Best if you value predictability, are at your borrowing limit, or believe rates will rise.
✓ Payment certainty ✓ Easier to budget ✓ Protection if rates rise
Variable Rate
Rate moves with prime. Historically lower than fixed over full amortization periods, but payments fluctuate. Best if you have flexibility and expect rates to fall.
✓ Historically lower cost ✓ Benefits if rates drop ✓ Lower break penalties
Stress Test Reminder
The OSFI stress test qualifying rate is the greater of 5.25% or your contract rate + 2%. Switch to this tab to load live data.
Ask the Mortgage AI
Rates, BOC decisions, fixed vs variable
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I'm loading the latest rate data now. While I do — ask me anything about what the current rate environment means for your mortgage decision, or whether fixed or variable makes more sense for your situation.
Common questions
New to Canada Mortgage Qualifier
Permanent residents and temporary residents each have different rules. Select your status to see exactly what applies to you.
Your Immigration Status
Property & Finances
$
$
$
Credit History
Your Qualification Summary
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Select your immigration status and enter your details — I'll walk you through exactly what you qualify for and what to expect from Canadian lenders as a newcomer to Ontario.
Common questions
Mortgage Penalty Calculator
Estimate your prepayment penalty before you sell, refinance, or switch lenders. Results are estimates — your lender's exact calculation may vary slightly.
Your Current Mortgage
$
%/ yr
mo
%/ yr
Refinance Analysis (optional)
%/ yr
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* Legal fees, inspection, and moving costs are estimates. Get quotes from local professionals for accuracy.
FHSA vs RRSP Home Buyers' Plan
Down Payment Rules to Know
90-day seasoning rule — lenders require down payment funds to be in your account for 90 days before closing. Transfers from investments or gifts need to arrive well in advance.
Gift rules — gifts from immediate family (parents, siblings, grandparents) are accepted with a signed gift letter confirming no repayment is required. Gifts from friends are generally not accepted.
Borrowed down payment — not permitted for insured mortgages (under 20% down). You cannot use a personal loan, LOC, or credit card advance as your down payment on an insured deal.
FHSA 90-day rule — FHSA funds must have been in the account for at least 90 days before withdrawal for a home purchase.
RRSP HBP timing — RRSP funds must have been contributed at least 90 days before withdrawal. You have until October 1 of the year after your home purchase to make the withdrawal.
Ask the Mortgage AI
Powered by Claude — your 24/7 GTA mortgage specialist
CK
Enter your savings across each account and I'll help you build a clear path to your down payment — including which accounts to prioritize, how to use your FHSA and RRSP optimally, and what surprises to plan for on closing day.
Common questions
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