How is a personal loan repayment calculated in South Africa?

Monthly repayments are calculated using the loan amount, interest rate, and term. Under the NCA, short-term loans under R8,000 can charge up to 5% interest per month plus an initiation fee (max R1,207.50) and a monthly service fee (max R69). Use PrimeCompare's calculator to see your total cost of credit before applying.

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

Under the National Credit Act: short-term loans (under R8,000, under 6 months) are capped at 5% per month interest. Unsecured personal credit agreements have a cap of repo rate plus 21% per year. Always check the total cost of credit including initiation and service fees.

Can I afford a personal loan in South Africa?

A rule of thumb is that your total debt repayments should not exceed 30-40% of your net monthly income. Use our calculator to see your monthly instalment, then compare it against your take-home pay. NCA-registered lenders are legally required to conduct an affordability assessment before approving any loan.

Updated June 2026

Personal Loan Calculator South Africa 2026

Written and reviewed by Kyle Govender, Founder & Editor · JohannesburgLast reviewed July 2026PrimeCompare is not a credit provider or financial adviser. How we review lenders

Quick answer Enter your loan amount, term and interest rate below to estimate your monthly repayment, total interest and total cost of credit for a personal loan in South Africa. The calculator applies the National Credit Act's maximum rate and fee caps so the estimate reflects what a legally compliant NCR-registered lender can charge — your actual offer will depend on the individual lender's affordability assessment.

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Last updated: June 2026 · Affiliate disclosure

See exactly what your loan will cost before you apply. Adjust the amount, term and interest rate to calculate your monthly repayment, total interest and total cost of credit — all under NCA rules.

Calculate Your Loan Repayment

Loan Amount (R)

R500R5,000R250,000

Term (months)

1 month6 months72 months

Monthly Interest Rate (%)

0.5%3.0% p/m5% (NCA max)

Include NCA fees?

Initiation fee (R1,207.50) Service fee (R69/month)

Monthly repaymentR0

Total interestR0

Total fees (initiation + service)R0

Total cost of creditR0

Total repayableR0

⚖️ NCA cap: Short-term loans (under R8,000, under 6 months) are capped at 5% interest per month + max R1,207.50 initiation fee + max R69/month service fee. This calculator uses these maximums as defaults.

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How to Read Your Loan Calculator Results

Term	What it means
Monthly repayment	The amount you pay each month including principal, interest and service fee
Total interest	The total interest charged over the full loan term
Total fees	Initiation fee (once-off) plus monthly service fees over the term
Total cost of credit	Total interest + total fees — this is what borrowing actually costs you above the loan amount
Total repayable	Loan amount + all interest + all fees — the total you pay back

Example Repayments at NCA Maximum Rates

Loan Amount	Term	Monthly Repayment	Total Cost of Credit	Total Repayable
R1,000	1 month	R1,326.50	R326.50	R1,326.50
R3,000	3 months	R1,619.17	R857.50	R3,857.50
R5,000	3 months	R2,519.17	R1,257.50	R6,257.50
R8,000	6 months	R2,016.75	R4,100.50	R12,100.50
R20,000	24 months	R1,233.05	R9,593	R29,593
R50,000	36 months	R2,187.13	R28,737	R78,737

Short-term examples use NCA maximum rates. Larger amounts use 28.0% per year — the NCA maximum of repo (7.00%, May 2026) plus 21%, and include the once-off initiation fee (R1,207.50 incl VAT, financed) and the R69 monthly service fee. Actual rates vary by lender and applicant profile — good credit typically means 15–24%.

Frequently Asked Questions

How is my monthly repayment calculated?

Monthly repayment = (Loan amount × monthly rate) / (1 - (1 + monthly rate)^-term) + monthly service fee. The initiation fee is typically added to the loan balance or charged upfront.

What is the NCA maximum interest rate?

Short-term loans under R8,000 with terms under 6 months: 5% per month. Personal credit agreements for larger amounts: repo rate + 21% per year — 28.0% at the current 7.00% repo rate (May 2026).

Are these NCA fees always charged?

Lenders can charge up to the NCA maximums but don't have to. Some lenders charge lower rates or waive fees for good credit profiles. Always request a pre-agreement quote to see the exact costs before signing.

Can I repay my loan early?

Under the NCA, you have the right to settle any credit agreement early. The lender can charge a settlement fee but cannot penalise you for early repayment. Early settlement reduces your total interest cost.

Disclaimer: PrimeCompare is a comparison and information service. This page does not constitute financial advice. All lenders listed are NCR-registered and NCA-compliant. Always read the pre-agreement quote before signing any credit agreement.