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Interest carries more of the payment.
- Principal
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- Interest
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Home & mortgages
Your mortgage changes more than your payment.
A mortgage shapes the monthly room around everything else. Explore payment, renewal and prepayment decisions with your numbers and transparent Canadian assumptions.See how payment, renewal and prepayment decisions shape the month around your home.
No lender pitch. No approval claims. Just clearer mortgage trade-offs.
- Calculations run in your browser
- No signup required
- Canadian mortgage context
Start with a question
What are you trying to understand?
Start with the decision your household is carrying now.
Monthly paymentWhat could this mortgage cost each month?Explore Mortgage Payment →
RenewalWhat changes when your mortgage comes up for renewal?Open Mortgage Renewal →
PrepaymentWhat happens if you put more toward the mortgage?Explore Mortgage Prepayment →
Understand the basicsI want to understand how mortgages work first.Read mortgage basics →
See how a payment changes over time
Each payment does two jobs.
Part covers interest. Part reduces the mortgage balance. Over time, that mix changes.
Illustrative $500,000 mortgage at a 4.5% fixed nominal annual rate, semiannual compounding, 25-year amortization and monthly payments. Equal-period educational model; lender timing, rounding and posting may differ. Fees, taxes and insurance are not included.
Year 10—
The two parts move closer together.
- Principal
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- Interest
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Year 20—
More of the payment reduces balance.
- Principal
- —
- Interest
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Mortgage anatomy
Four parts shape one mortgage decision.
Cost, commitment, repayment time and payment rhythm work together.
One mortgage. Four connected parts.
Monthly mortgage decisionOne mortgage
Each part changes how the payment and timeline behave.
Rate
What borrowing costs.
Term
How long the current mortgage agreement lasts.
Amortization
How long the balance is scheduled to take to repay.
Payment frequency
How often payments are scheduled.
Built around real life
Your mortgage has to fit the rest of your life.
Housing costs sit beside debt, savings, emergencies, education goals and everything else competing for household cash flow.
The payment arrives every month. Life keeps moving around it.
- Start with the full picture.Consider the mortgage beside current household obligations.
- Leave room for change.Rates, income and household needs can change over time.
- Revisit major moments.Renewal and prepayment can change the path.
Use your numbers
Explore the decision in more detail.
Open a current public tool and change the inputs yourself.
Buying a homeHome-Buying Budget Planner
What cash is still needed, and how would this home fit the month?
Open Home-Buying Budget → Monthly costMortgage PaymentEstimate payments using balance, rate, amortization and frequency.
Open Mortgage Payment → Upcoming termMortgage RenewalExplore payment and term choices for your upcoming renewal.
Open Mortgage Renewal → Extra principalMortgage PrepaymentSee how extra payments affect payoff timing and interest.
Open Mortgage Prepayment →Canadian mortgage context
The calculation convention matters.
FinForFam’s fixed mortgage estimates use a fixed nominal annual rate with semiannual compounding, then model payments at the selected frequency.
Read our mortgage methodology01 · SchedulePayment timingEqual periods, paid in arrears for the educational schedule.
02 · PrecisionCent roundingPayments and each schedule event are handled in cents.
03 · ReconciliationReal statementsLender timing, rounding and posting can produce differences.
Assumptions matter
A mortgage result is only as useful as its inputs.
Keep the main levers visible, then change one at a time to understand what moves.
Read our methodologyInputHero exampleRole in the model
Balance
$500,000The principal being modelled.
Rate
4.5%The fixed nominal annual rate used.
Amortization
25 yearsThe scheduled repayment horizon.
Payment frequency
MonthlyHow often payments are scheduled.
The bigger picture
The mortgage sits at the centre of the month.
Housing costs affect cash flow, savings capacity, education goals, debt decisions and retirement planning.
FinForFam helps you keep the whole household picture in mind.
See your financial picture
How it works
Three steps to a clearer mortgage decision.
- 1
Start with one question
Payment, renewal or prepayment.
- 2
Use your real numbers
Balance, rate, amortization and timeline.
- 3
See the trade-offs clearly
Understand what changes before deciding.
Understand before you decide