How to create and use a loan repayment schedule in South Africa. Covers NCA prescribed maximum interest rates, amortisation, balloon payments, early settlement, and how to dispute incorrect loan statements.
A loan repayment schedule shows every payment you will make over the life of a loan, breaking each payment into its interest and capital components. In South Africa, how that schedule is structured — including the interest rate — is regulated by the National Credit Act 34 of 2005 (NCA). Understanding your repayment schedule helps you spot overcharging, plan for early settlement, and avoid the compounding cost of minimum-only payments.
Every loan repayment has two parts:
In the early months of a loan, most of each payment goes to interest because the outstanding balance is high. As the balance decreases, a larger share of each payment goes to capital. This pattern is called amortisation.
| Month | Opening Balance | Payment | Interest | Capital | Closing Balance |
|---|---|---|---|---|---|
| 1 | R50,000 | R1,611 | R958 | R653 | R49,347 |
| 2 | R49,347 | R1,611 | R945 | R666 | R48,681 |
| ... | ... | ... | ... | ... | ... |
| 36 | R1,598 | R1,611 | R31 | R1,580 | R0 |
(Illustrative figures at approximately 23% annual interest, 36 months)
The key insight: if you miss a payment or pay only a partial amount, the unpaid interest is typically capitalised — added to the outstanding balance — which accelerates the growth of your debt.
The NCA prescribes maximum interest rates for different credit agreement types. As of 2024, the prescribed maximums are:
| Credit Type | Maximum Annual Interest |
|---|---|
| Mortgage agreements | Repo rate + 12% |
| Credit facilities (credit cards, overdrafts) | Repo rate + 14% |
| Unsecured credit transactions | Repo rate + 21% |
| Short-term credit (loans under 6 months or R8,000) | 5% per month (not annual) |
| Developmental credit agreements | Repo rate + 27% |
The South African Reserve Bank (SARB) sets the repo rate; the NCA adds the permitted margin on top of it. At a repo rate of 8.25% (early 2024), the maximum interest on an unsecured personal loan is 29.25% per year.
If a registered credit provider charges above the NCA cap, the excess interest charge is unlawful and you can challenge it through the National Credit Regulator (NCR).
The NCA also caps initiation fees and monthly service fees. For an unsecured loan:
These fees must appear on your repayment schedule. If your schedule only shows a single monthly instalment without itemising interest and fees separately, request a full amortisation schedule from the credit provider.
A compliant NCA repayment schedule must show:
If you are comparing two loan offers, compare the total cost of credit — not just the monthly instalment. A longer term lowers the monthly payment but increases total interest paid significantly.
Some vehicle finance agreements in South Africa use a balloon (residual) payment — a large lump sum due at the end of the term that was excluded from the monthly amortisation. Key points:
Always ask for a full amortisation schedule that shows the balloon payment separately so you can plan for it.
The NCA gives you the right to settle a credit agreement early at any time. On early settlement:
If your statement does not match your repayment schedule:
The NCR and the Credit Ombud handle disputes at no cost to the consumer.
If you cannot meet your scheduled repayments, the NCA provides for debt review — a formal process administered by a registered debt counsellor. Under debt review:
Debt review is not appropriate for everyone — consult a registered debt counsellor registered with the NCR before proceeding.
Last reviewed: 2026-03-03. This article is informational only - verify requirements with official sources before acting.
ElyForma articles are written for informational use and practical guidance. They do not replace advice from a qualified legal professional for your specific case.
Expert in SA credit law, NCA compliance, and personal finance management.