Canadian Offset Mortgage Calculator
Compare your current mortgage against an offset structure
Austin Yeh Mortgages
Offset Mortgage Calculator · Daily Compounding
Canadian Mortgage Specialist
01
Current Mortgage
Payment auto-calculates using Canadian semi-annual compounding. Override by typing a custom amount.
Home / property value
$
Current mortgage balance
$
⚠ Mortgage balance exceeds 80% LTV (current: —). This property does not qualify for an offset mortgage. Maximum qualifying balance: —.
Interest rate
%
Amortization
Mortgage term
Payment amount AUTO-CALC
Calculated from rate + amortization. Type to override.
$
Payment frequency
02
Debt Consolidation
Rolling high-interest debt into the offset account immediately reduces the balance that daily interest is charged on.
Include existing debts?
03
Cash Flow
Income deposits at month start and immediately lowers your HELOC balance. Expenses leave over the month. Your net surplus is the automatic daily paydown engine.
How daily compounding works: Interest is charged on the average daily HELOC balance, not the peak. The moment your income hits the account, the balance drops and so does the interest being charged from that day forward.
Monthly after-tax income
Base salary / regular take-home
$
Monthly commission / variable
Average monthly amount
$
＋
Bonus Income
Quarterly, annual, or one-time
Quarterly: set the first month it occurs (e.g. 3), then repeats every 3 months.
Annual: set which month of the year it occurs (1–12, e.g. 12 = December).
One-Time: set the exact month number from the start of your offset account.
Annual: set which month of the year it occurs (1–12, e.g. 12 = December).
One-Time: set the exact month number from the start of your offset account.
Total monthly household expenses
Exclude mortgage payments — they no longer exist as a fixed obligation in an offset account.
$
＋
Break down by category
Auto-totals above
Household
Utilities
$
Phone / Internet
$
Property Insurance
$
Condo / Maint.
$
Property Taxes
$
Subtotal: $0
Living
Groceries
$
Clothing
$
Childcare
$
Subtotal: $0
Transportation
Fuel
$
Auto Insurance
$
Auto Maint.
$
Parking / Transit
$
Subtotal: $0
Financial & Savings
RRSP / TFSA
$
Non-Reg. Savings
$
Life Insurance
$
Subtotal: $0
Recreation
Fitness
$
Travel
$
Entertainment
$
Restaurants
$
Subtotal: $0
Other
Subtotal: $0
Total Monthly Expenses
$0
Total monthly income (incl. commission)
$0
Total monthly expenses
$0
Net surplus → applied to HELOC each month
$0
04
Savings
Deposited on funding day — immediately reduces the opening HELOC balance.
Savings account
$
Chequing account
$
Short-term savings
$
Total deposited on funding day
$0
05
Offset Structure
The main HELOC uses daily compounding and is capped at 65% LTV by regulation. Sub-accounts are fixed-rate tranches carved out of the HELOC on a chosen start month — before that month, the money sits in the HELOC earning offset benefit.
Total borrowed (balance − savings) $0
Opening HELOC balance (65% LTV max) $0
Sub-account(s) total $0
Main HELOC rate (daily compounding)
Nominal annual rate · typically Prime + 0.50%
%
Sub-Accounts
Fixed-rate tranches using Canadian semi-annual compounding. Each sub-account has a start month — before that month the amount stays in the HELOC. Month 1 = funding day. Month 61 = year 5 renewal.
＋
One-Time HELOC Events
Lump-sum deposits or planned withdrawals
Specify the exact month the event occurs. Month 1 = funding day · Month 12 = end of year 1 · Month 60 = end of year 5.
06
Results
With an offset mortgage, you could save
—
in total interest over the life of your mortgage
—
Debt-free in
—
Current mortgage interest
—
Offset mortgage interest
Current Mortgage
—
—
—
Offset Mortgage
—
—
—
Balance Remaining Over Time
Current Mortgage
Offset Mortgage
| Year | Principal Paid | Interest Paid | Ending Balance |
|---|
Current mortgage: Canadian semi-annual compounding · Offset HELOC: daily compounding · Sub-accounts: Canadian semi-annual compounding · Results are illustrative estimates. Speak with Austin Yeh for a personalized analysis.
AY
Austin Yeh
Independent Mortgage Agent · Smith Manoeuvre Certified · 13-Property Portfolio
Specializing in advanced mortgage strategies for high-income earners — offset mortgages, Smith Manoeuvre, cash damming, and debt restructuring across Canada.
austinyeh.com
Toronto · Canada-wide