Purchase price minus your deposit
Current prime = 10.25%. Banks typically offer prime to prime + 2%
Standard SA home loans are 20 years
Enter your loan amount and interest rate, then click Calculate to see your monthly repayment and term comparison.
Get the best bond rate in South Africa
ooba submits your application to all major banks simultaneously — Standard Bank, ABSA, FNB, Nedbank and more. The service is completely free.
Get pre-approved with ooba — free, no obligation →How Bond Repayments Work in South Africa
A bond repayment is the fixed monthly amount you pay to your bank over the agreed loan term. Each payment covers two components: interest charged on the outstanding balance, and a capital (principal) reduction. In the early years of a bond, most of your repayment goes toward interest — over time, the capital portion grows as your outstanding balance reduces.
The Effect of Interest Rate on Your Repayment
The interest rate has an enormous impact on your total cost. On a R1,500,000 bond over 20 years, the difference between prime (10.25%) and prime + 2% (12.25%) is roughly R2,000 per month — and over R400,000 in additional total interest. This is why securing the best possible rate matters, and why bond originators like ooba exist: they negotiate with all major banks on your behalf at no cost to you.
Term Length and Total Cost
Choosing a 30-year term reduces your monthly repayment but dramatically increases total interest paid. A shorter term requires higher monthly payments but builds equity faster and costs far less overall. If affordable, the shortest term you are comfortable with will save you hundreds of thousands of rands over the life of your bond.
The Power of Extra Payments
One of the most effective ways to reduce your bond cost is to pay extra each month. Even a small additional payment applied directly to the capital can shave years off your bond and save substantial interest. Use our Extra Bond Payment Calculator to see exactly how much you could save.
Initiation Fees and Service Fees
In addition to your monthly repayment, South African banks typically charge a once-off initiation fee (currently capped at R6,037.50 including VAT) and a monthly service fee (around R69/month). These add to your total cost of credit and should be factored into your affordability assessment.
Frequently Asked Questions
As of 2026, the South African prime lending rate is 10.25%, based on the SARB repo rate of 6.75% plus a fixed 3.5% margin. The rate changes whenever the Reserve Bank's Monetary Policy Committee adjusts the repo rate.
Monthly repayments use the amortisation formula: P × r(1+r)^n / ((1+r)^n − 1), where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the number of monthly payments. Each payment covers interest first, with the remainder reducing your capital balance.
Most banks require a 10–20% deposit, though 100% bonds are occasionally available to buyers with excellent credit. A larger deposit reduces your monthly repayment, total interest paid, and may secure a better interest rate.
Yes — significantly. A 20-year term has higher monthly payments than a 30-year term, but you pay far less total interest. The savings can run to hundreds of thousands of rands over the life of the loan.
Yes. You can renegotiate your rate with your bank (especially if your credit has improved), switch your bond to a lender offering a better rate, extend your term, or make a lump-sum capital payment. A bond originator like ooba can assist with a rate review or switch at no cost.