Loan Repayment Calculator
Calculate your monthly repayment, total interest, and total cost of credit for any South African loan — free and instant.
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SA prime rate is currently ~11.75%. Personal loans: 18–29.25%
See how much you save by paying more each month.
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Monthly Repayment
R 3 615,24
per month for 36 months at 18%
Total Repayment
R 130 148,62
Total Interest
R 30 148,62
Monthly Cost Breakdown
Estimated Total Cost of Credit (NCA)
* Initiation fee and service fee are indicative NCA-capped maximums. Actual lender fees may be lower.
💡 Save 12 months — pay R 1 400,00/month extra
Adding R 1 400,00 to your monthly payment cuts your loan from 36 to 24 months and saves you R 10 436,56 in interest.
Extra/month
R 1 400,00
New term
24 months
Interest saved
R 10 436,56
* These extra payments reduce your outstanding balance immediately, cutting the interest that accrues every month. If your lender offers a revolving credit facility or allows redraws, this surplus also acts like an accessible emergency fund — visible in your banking app and withdrawable without a new application.
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* Estimates only. Actual repayments depend on the lender's credit assessment. Total cost of credit includes indicative NCA-capped initiation and service fees. Calculated using the reducing-balance PMT formula.
How is the loan repayment calculated?
This calculator uses the standard reducing-balance PMT formula used by South African banks and credit providers:
Monthly Payment = P × [r(1+r)ⁿ] / [(1+r)ⁿ − 1]
Where P is the principal loan amount, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments.
Note that actual loan costs from a South African lender will also include initiation fees (capped at R1,207.50 under the NCA), a monthly service fee (up to R69), and optional credit life insurance premiums.
What interest rates apply in South Africa?
The maximum prescribed interest rate under the National Credit Act (NCA) for unsecured personal loans is prime × 2.2 + 10% per year. At a prime of 11.75%, this gives a maximum of approximately 35.85% p.a. Business loans may have different terms negotiated directly with the lender.
Smart Loan Payment Strategies
Timing your extra payments correctly can significantly amplify your savings. Here's how to get the most out of every rand you pay.
Pay Before Your Debit Order Date
Making an extra payment a few days before your scheduled debit order means your outstanding balance is already lower when monthly interest is calculated. This reduces the interest portion of your next instalment and grows your principal repayment — compounding your savings over time.
Pay on Day 1 of the Month
Most SA lenders calculate interest daily or monthly on your outstanding balance. Paying as early as possible in the month — ideally on the 1st — gives your extra payment the maximum number of days to reduce the balance before month-end interest accrues, saving you more interest than paying at month-end.
Consistent Small Extras Beat One-Off Lump Sums
Paying even R500 extra every month typically saves more than a single R6,000 lump sum at year-end — because each smaller payment reduces the balance earlier, lowering interest charges across more months. Start small and stay consistent.
Reduce Your Principal, Not Next Month's Payment
When you make extra payments, tell your lender to apply them to principal, not to future instalments. Some lenders default to "pre-paying" upcoming months. Paying down principal directly shrinks the interest base immediately, giving you far greater long-term savings.
Early-Loan Payments Have the Biggest Impact
In the first 12–24 months, the majority of each payment goes to interest. Extra payments during this window reduce the balance when it's highest — yielding the greatest interest savings. The later in the term you pay extra, the less benefit you get because the balance is already low.
Refinance When Rates Drop
If the SA prime lending rate falls, ask your lender to reassess your rate. Refinancing to a lower rate while keeping the same (or higher) monthly payment dramatically accelerates payoff. Even 1–2% less interest can save tens of thousands on larger loans over a full term.
Common Loan Repayment Reference
Indicative monthly repayments for popular loan amounts and terms at representative South African interest rates. Use as a quick guide — your actual rate may differ.
| Loan Amount | Option 1 | Option 2 | Option 3 | |||
|---|---|---|---|---|---|---|
| Term | Monthly | Term | Monthly | Term | Monthly | |
| R 20 000,00 | 2 yrs | R 877,43 | 3 yrs | R 599,42 | 5 yrs | R 377,42 |
| R 50 000,00 | 2 yrs | R 2 193,57 | 3 yrs | R 1 498,54 | 5 yrs | R 943,56 |
| R 100 000,00 | 3 yrs | R 2 997,09 | 4 yrs | R 2 302,93 | 6 yrs | R 1 610,49 |
| R 150 000,00 | 3 yrs | R 4 495,63 | 5 yrs | R 2 830,69 | 7 yrs | R 2 120,09 |
| R 300 000,00 | 4 yrs | R 6 908,79 | 6 yrs | R 4 831,48 | 8 yrs | R 3 797,98 |
| R 400 000,00 | 5 yrs | R 7 548,49 | 7 yrs | R 5 653,56 | 9 yrs | R 4 606,91 |
| R 600 000,00 | 6 yrs | R 9 662,96 | 8 yrs | R 7 595,95 | 10 yrs | R 6 363,93 |
| R 800 000,00 | 7 yrs | R 11 307,13 | 9 yrs | R 9 213,82 | 11 yrs | R 7 891,59 |
| R 1 000 000,00 | 8 yrs | R 12 659,92 | 10 yrs | R 10 606,55 | 12 yrs | R 9 248,90 |
* Repayments are indicative estimates at ~19.5% p.a. Actual repayments depend on your interest rate, fees, and lender terms.
Personal Loan Repayment Cheat Sheet
Key rules and numbers every South African borrower should know before signing a loan agreement.
Rule of Thumb: 30% of Take-Home Pay
Your total debt repayments (all loans combined) should not exceed 30% of your net monthly income. Exceeding this puts you at risk of financial strain and may lead to a declined application under NCA affordability assessments.
SA Prime Rate (June 2026): 11.75%
Personal loan rates are typically Prime + 4% to Prime + 10%, meaning 15.75%–21.75% depending on your credit profile. The better your credit score, the closer to Prime you can negotiate.
Shorter Term = Less Total Interest
A R100,000 loan at 19.5% over 3 years costs ±R55,000 in interest. The same loan over 6 years costs ±R116,000 — more than double. Always choose the shortest term you can comfortably afford.
Initiation & Service Fees Add Up
SA lenders can charge an initiation fee (up to R1,207.50 under NCA caps) and a monthly service fee (up to R69). On a short-term loan, fees can represent 2–5% of your total borrowing cost. Always request the full APR — not just the interest rate.
Credit Score Impact on Rate
A credit score of 700+ typically qualifies for the best personal loan rates. A score below 600 may result in rates at or near the NCA maximum of ~35.85% p.a. Improving your score by just 50 points can save thousands over the loan term.
The "Double Payment" Trick
If you can afford to pay double your required instalment for the first 6 months, you can cut your total interest by 20–35% and reduce your term significantly — because most of the interest is front-loaded early in the loan.
Avoid Skipping Payments
Missing a single payment adds penalty interest, damages your credit record, and resets any goodwill built with your lender. A missed payment can stay on your credit report for up to 2 years, affecting your ability to refinance at a better rate.
Settlement Amount ≠ Remaining Balance
If you want to settle early, always request an official settlement quote from your lender. Under the NCA you are entitled to settle at any time with a maximum 3-month interest penalty on early settlement.
Frequently Asked Questions
Answers to the most common loan repayment questions in South Africa.
How is my monthly loan repayment calculated?
What happens if I pay extra every month?
Should I pay extra before or after my debit order date?
Is there a penalty for paying off my loan early in South Africa?
What is the maximum interest rate on personal loans in South Africa?
How do initiation fees and service fees affect my loan cost?
How does my loan term affect the total cost?
Can I use this calculator for a business loan or vehicle finance?
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Rates are indicative and subject to change without notice. Finance EzyFind is a free comparison and matching service — not a lender or credit provider. All lending is subject to the National Credit Act (NCA). Please borrow responsibly.
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