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LOANS & DEBT / FREE CALCULATOR

Extra loan payments calculator

See the interest and months you could save by paying extra.

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 60 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 2 661,80

Final payment may be smaller · constant-rate monthly amortisation

Amount financed
R 100 000,00
Standard instalment before fees
R 2 161,80
Months saved
13
Interest saved
R 7 248,12
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 100 000,00
Standard instalment before fees
R 2 161,80
Months saved
13
Interest saved
R 7 248,12
Total interest
R 22 459,52
Total payments including financed fee
R 122 459,52
Final payment
R 16,72
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 · 47 payments
Payments, interest and remaining balance. Fees include ongoing insurance.
PaymentDateTotal paidPrincipalInterestFeesBalance
1—R 2 661,80R 1 765,97R 895,83R 0,00R 98 234,03
2—R 2 661,80R 1 781,79R 880,01R 0,00R 96 452,24
3—R 2 661,80R 1 797,75R 864,05R 0,00R 94 654,49
4—R 2 661,80R 1 813,85R 847,95R 0,00R 92 840,64
5—R 2 661,80R 1 830,10R 831,70R 0,00R 91 010,54
6—R 2 661,80R 1 846,50R 815,30R 0,00R 89 164,04
7—R 2 661,80R 1 863,04R 798,76R 0,00R 87 301,00
8—R 2 661,80R 1 879,73R 782,07R 0,00R 85 421,27
9—R 2 661,80R 1 896,57R 765,23R 0,00R 83 524,70
10—R 2 661,80R 1 913,56R 748,24R 0,00R 81 611,14
11—R 2 661,80R 1 930,70R 731,10R 0,00R 79 680,44
12—R 2 661,80R 1 948,00R 713,80R 0,00R 77 732,44
THE WORKINGS

How this calculation works

Compare two monthly amortisation schedules with the same current balance, rate and remaining term: one at the standard instalment and one with your extra monthly payment. Interest is rounded to cents monthly.

A worked example

At 0%, R12 000 over 12 months needs R1 000 monthly. Adding R500 clears the balance in eight months.

Assumptions & limitations

  • The entered term is the remaining term, not the original loan term. Rates stay constant. Settlement penalties, monthly fees, insurance and redraws are excluded; ask your lender how extra payments are allocated.
KEEP EXPLORING

Another piece of the picture.

Loan repaymentDebt payoffDebt snowball

Read a little further.

Loans & credit5 MIN READ

How personal loan interest works

Make sense of a nominal rate, an instalment and the total amount you will repay.

Read the guide