Personal Loan Calculator

How the Personal Loan Calculator Works

A personal loan is repaid in fixed monthly instalments over an agreed term - typically 12 to 60 months. Each instalment covers the interest accrued during that month plus a portion of the outstanding principal. This structure is called an amortising loan.

The monthly repayment is calculated using the standard annuity formula:

South African personal loan interest rates are quoted as an annual percentage rate (APR). The National Credit Act caps personal loan interest at the repo rate plus 21% - currently capping at around 29.25% per year for unsecured credit. Most major lenders charge between 12.5% and 29.25% depending on your credit profile.

The calculator also shows the total cost of credit - the sum of all repayments - and the total interest paid, which is the difference between the total cost of credit and the principal borrowed. A longer term reduces your monthly payment but significantly increases total interest.

How to Use This Calculator

1. 1

   Enter the loan amount

   Type the amount you want to borrow in Rands. South African personal loans typically range from R1 000 to R300 000, depending on the lender.

2. 2

   Enter the annual interest rate

   Use the rate quoted in your pre-approval or compare against the prime lending rate (currently 10.25%). Most unsecured personal loans are priced between prime + 3% and prime + 18%.

3. 3

   Select the repayment term

   Choose between 12 and 60 months. A shorter term means higher monthly payments but far less total interest paid.

4. 4

   Review your results

   The calculator shows your monthly repayment, total repayment amount, and total interest. Compare different scenarios by adjusting the sliders.

5. 5

   Check affordability

   Under the NCA, lenders must perform an affordability assessment. As a rule of thumb, your total debt repayments should not exceed 30–40% of your net monthly income.

Frequently Asked Questions

What is the maximum personal loan interest rate in South Africa?

Under the National Credit Act, the maximum interest rate for unsecured personal credit is the repo rate plus 21% per year. With the repo rate at 8.25% (as at mid-2025), the cap is 29.25% per annum. Lenders may also charge an initiation fee (capped at R1 207.50 on the first R10 000 plus 10% of the amount above R10 000, to a maximum of R2 439.45) and a monthly service fee (capped at R69).

How does the loan term affect my repayment?

Extending the term reduces your monthly instalment but substantially increases the total interest you pay. For example, a R50 000 loan at 20% per year costs about R1 321/month over 48 months (total interest: R13 408) versus R930/month over 72 months (total interest: R16 960). The monthly saving of R391 costs you R3 552 more overall.

Can I settle my personal loan early in South Africa?

Yes. The NCA gives you the right to settle any credit agreement early at any time. On a personal loan settled within the first 12 months, the lender may charge a settlement penalty of up to 3 months' interest or 1% of the outstanding balance. After 12 months, no penalty applies. Early settlement always saves you money on total interest.

What is an initiation fee and is it included in my repayment?

An initiation fee is a once-off charge for setting up the credit agreement. Lenders typically add it to the loan balance (capitalise it), which means you pay interest on it over the term. Always ask your lender whether the quoted repayment includes the initiation fee - our calculator allows you to add it to the principal for an accurate total-cost view.

What credit score do I need for a personal loan in South Africa?

South African lenders do not publish fixed credit score thresholds, but a score above 650 (on most bureau scales) generally qualifies you for standard rates. Scores above 700-750 typically attract the most competitive pricing. Your credit profile is held by TransUnion, Experian, Compuscan (now Experian), and XDS - you are entitled to one free report per year from each.

Is a personal loan better than using a credit card?

For large, planned expenses, a personal loan is usually cheaper than a credit card. Personal loans have a fixed rate and a defined payoff date, while credit cards compound daily on the revolving balance and can trap you in minimum-payment cycles. However, for short-term bridging where you can pay the full balance before the interest-free period ends, a credit card can be interest-free.