Bank Math vs Business Math — Self-Employed Mortgage Calculator
Self-Employed · Canada

Bank Math vs Business Math

Compare what a bank says you make to what your business can actually prove.

Stop. This section is for Sai Lee only, please don't change anything here. A few lenders allow exceptions to some of these rules, but only a licensed mortgage professional like Sai should be the one adjusting these numbers. Need updated rates? Contact Sai directly.
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Live Calculation Check (updates as you test):
GDS Used: 0%  |  TDS Used: 0%  |  Bank Stress Rate Used: 0%  |  Cashflow Stress Rate Used: 0%
2-Yr Income Base (before gross-up): $0  |  After Gross-Up: $0  |  Method: —
Income Type Used: —  |  2024 CPP/EI: $0  |  2025 CPP/EI: $0
Your Property
Your Personal Declared Income
Determines how CPP and EI get calculated. If you're incorporated and take a mix of salary and dividends, the dividend portion isn't modeled here, that's exactly what a call with us is for.
Assumes full-time, salaried income. If it's more complex than that, that's exactly what a call with us is for.
Your Business
Gross revenue hitting your business account
Everything it actually costs to run your business, things like rent, supplies, or subcontractors
If you selected "100% Commission" above, we use your full monthly business income with no expense deduction.
Mortgage Details
Illustration only, average rate as of June 2026. Your real rate may be lower.
Illustration only, average rate as of June 2026. Your real rate may be lower.
The Comparison
What the Bank Sees

Bank Math

Qualified Income$0
Maximum mortgage$0
Monthly payment at that maximum$0
What Your Business Proves

Business Math

Qualified Income$0
Maximum mortgage$0
Monthly payment at that maximum$0

Maximum Mortgage

Bank Math
$0
Business Math
$0
Difference in Maximum Mortgage
$0
Your Summary
Taxes Paid, 2024
$0
Taxes Paid, 2025
$0
2-Year Total
$0
What Would It Take

You already saw your maximums above. This answers a different question: if you only wanted a specific mortgage amount, what would a traditional bank actually need from you to get there?

Defaults to the mortgage you need for the purchase price above. Change it to test any number.
Bank Math

To Get This Mortgage

Income to declare, year 1$0
Income to declare, year 2$0
Estimated tax, year 1$0
Estimated tax, year 2$0
Total estimated tax, both years$0
Monthly payment$0
Earliest you could qualifyAfter 2 full tax years
Business Math

To Get This Mortgage

Real business income needed, last 12 months$0
This is a net number, after expenses. Not your total deposits.
Monthly payment$0
Extra vs the bank rate, per month$0
Extra payments, over 2 years$0
When you could qualifyToday

This calculator is for illustration purposes, it gives you the basics. Every mortgage is like a fingerprint, with more moving parts than a calculator can capture. The best time to find your options is before you need them, not after. You don't need an application to book a call, just a real conversation about what's possible for you.

Book My Roadmap Call

For illustration purposes only. This is not a pre-approval, loan commitment, or guarantee of qualification.

The Business Math shown here reflects one lender's current stated-income program. Rates, ratios, and qualifying criteria vary by lender, by file, and change without notice.

The bank income calculation reflects common A-lender practice (two-year averaging with a variance test and an income gross-up). Individual lenders apply their own variations, confirm specifics for your file.

This calculator does not account for credit score, mortgage default insurance, existing properties, or your complete financial picture. Co-applicant income assumes full-time, salaried income only.

Estimated tax is a simplified Ontario approximation for illustration only, including CPP (and CPP2) based on the income type you select, and EI where it applies. If you're incorporated and take a mix of salary and dividends, the dividend portion isn't modeled here. This is not tax advice, speak with your accountant about your actual return.

The two-year comparison window reflects the typical strategy of refinancing back to a bank-rate mortgage once two years of stronger declared income are on file. Future-year tax estimates use the most recent published tax and CPP tables, actual future rates are set by the government each year. Your actual strategy and timeline are exactly what a call is for.

Every scenario is different. Book a call to get your real numbers.