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PROPERTY & HOME / FREE CALCULATOR

Extra bond payments calculator

See how paying more into your home loan could shorten its term.

Method and references reviewed 5 November 2026
YOUR NUMBERS

Let’s work it out.

Download
R
%
Editable scenario, not a guaranteed return or a market quote.
Equivalent to 240 months. Repayments are monthly.
R
Leave blank to estimate the first payment one month from today. Monthly dates are estimates, not a lender schedule.

Calculated on your device. Save a copy only when you choose.

A CLEARER PICTURE

Planned monthly repayment

R 11 152,29

Final payment may be smaller · constant-rate monthly amortisation

Amount financed
R 1 000 000,00
Standard instalment before fees
R 10 152,29
Months saved
57
Interest saved
R 403 343,78
See the full breakdown
ESTIMATE · NOT A QUOTATION

Save this scenario, then change your inputs to compare the results.

BEHIND THE NUMBER

Your calculation, unpacked.

Amount financed
R 1 000 000,00
Standard instalment before fees
R 10 152,29
Months saved
57
Interest saved
R 403 343,78
Total interest
R 1 033 205,18
Total payments including financed fee
R 2 033 205,18
Final payment
R 3 488,40
UNDERSTAND THE TRADE-OFFS

Small changes.
Different possibilities.

Try changing one input at a time. Compare the total cost, as well as the monthly number.

View repayment schedule · 183 payments
Payments, interest and remaining balance. Fees include ongoing insurance.
PaymentDateTotal paidPrincipalInterestFeesBalance
1—R 11 152,29R 2 193,96R 8 958,33R 0,00R 997 806,04
2—R 11 152,29R 2 213,61R 8 938,68R 0,00R 995 592,43
3—R 11 152,29R 2 233,44R 8 918,85R 0,00R 993 358,99
4—R 11 152,29R 2 253,45R 8 898,84R 0,00R 991 105,54
5—R 11 152,29R 2 273,64R 8 878,65R 0,00R 988 831,90
6—R 11 152,29R 2 294,00R 8 858,29R 0,00R 986 537,90
7—R 11 152,29R 2 314,55R 8 837,74R 0,00R 984 223,35
8—R 11 152,29R 2 335,29R 8 817,00R 0,00R 981 888,06
9—R 11 152,29R 2 356,21R 8 796,08R 0,00R 979 531,85
10—R 11 152,29R 2 377,32R 8 774,97R 0,00R 977 154,53
11—R 11 152,29R 2 398,61R 8 753,68R 0,00R 974 755,92
12—R 11 152,29R 2 420,10R 8 732,19R 0,00R 972 335,82
THE WORKINGS

How this calculation works

Compare monthly mortgage amortisation with and without the entered extra payment. Interest is calculated monthly on the remaining balance and rounded to cents; the final payment clears the remaining cents.

A worked example

At 0%, a R240 000 bond over 240 months costs R1 000 monthly. Adding R1 000 clears it in 120 months.

Assumptions & limitations

  • Enter the current balance and remaining term. Interest rates stay constant and fees are excluded. Access-bond redraws, daily interest, cancellation notice and early settlement charges can change the actual outcome.
KEEP EXPLORING

Another piece of the picture.

Bond affordabilityBond repaymentsProperty transfer costs

Read a little further.

Home & property5 MIN READ

How banks assess home loan affordability

Prepare a household budget and understand why a calculator cannot promise approval.

Read the guide