South African Residential Home Loans

Home Loan Calculator & Applicant Guide

Use this professional guide to estimate monthly repayments, affordability, deposit scenarios, transfer and bond costs, extra-payment savings, interest-rate sensitivity and amortisation for residential home loans in South Africa.

Important: These calculations are estimates and guides only. Final approval, interest rate, qualification amount and legal costs depend on bank assessment, credit profile, property details, SARS rules and final attorney quotations.

Choose a calculator

All calculators are also shown below as tap-friendly buttons — no guessing or hidden swipe needed.

Monthly Repayment

Calculate the estimated bond repayment using the standard amortising PMT formula.

PMT Formula

Purchase Price

Deposit Amount

Deposit Percentage

Interest Rate

Loan Term

Estimated Monthly RepaymentR 0.00

Excludes bank initiation fee, monthly service fee and insurance products.

Loan AmountR 0.00

Total Interest PaidR 0.00

Total Cost of LoanR 0.00

FormulaPMT = loan × r ÷ (1-(1+r)^-n)

Simple Amortisation Summary

Point in Term	Interest Paid	Principal Paid	Balance

Bond Affordability

South African banks commonly consider both the gross-income repayment cap and your net disposable income. This tool shows both and highlights the lowest qualifying amount.

Lowest Rule Applies

Gross Monthly Income

Monthly Tax + UIF Deductions

Other Monthly Expenses

Preferred Monthly Repayment (Optional)

Interest Rate

Loan Term

Maximum Bond You Qualify ForR 0.00

30% Gross Income RuleR 0.00

Nett Disposable Income RuleR 0.00

Preferred Repayment OptionNot supplied

100% Bond Buying PowerR 0.00

A deposit increases buying power because the qualifying bond can be combined with your available cash deposit. For example, if you qualify for a bond of R 1 500 000 and have a R 150 000 deposit, your possible purchase price may be around R 1 650 000 before transaction costs.

Nett disposable income rule: banks typically apply 85% of net surplus to bond repayments.

Bond & Transfer Costs

Estimate transfer duty, attorney fees, petties/postages and Deeds Office registration fees using current South African residential cost assumptions supplied for this tool.

2026 SA Rates

Purchase Price

Bond Amount

New Development / VAT Property — transfer duty is R 0 because VAT is included in the price.

Grand Total Cash Required, Excluding DepositR 0.00

This excludes your deposit, moving costs, insurance and bank debits unless stated otherwise.

Cost Item	Estimated Amount	Note

Banks typically charge an initiation fee of about R 6 037.50 incl. VAT and a monthly service fee of about R 69.00 per month under NCA-regulated lending. These are mentioned for planning and are usually charged by the bank, not included in attorney cash costs above.

Extra Repayment Savings

See how paying extra into your bond can reduce interest and shorten your repayment period.

Save Interest

Current Loan Balance

Current Interest Rate

Remaining Term

Extra Monthly Amount

Total Interest SavedR 0.00

Time Saved0 months

New Estimated Payoff Date—

Scenario	Monthly Payment	Months to Pay Off	Total Interest	Payoff Date

Deposit Impact

Compare common deposit levels and see how your loan amount, repayment and lifetime interest change.

0% to 20%

Purchase Price

Interest Rate

Loan Term

Deposit %	Deposit Amount	Loan Amount	Monthly Repayment	Total Interest	Total Cost

Interest Rate Sensitivity

See how monthly repayments change from 9.00% to 15.00% in 0.25% steps. Prime reference is highlighted at 11.25%; you can override the highlight rate.

Rate Risk

Loan Amount

Loan Term

Prime / Current Highlight Rate

Interest Rate	Monthly Repayment	Total Interest	Indicator

Most residential home loans are priced around prime + 0% to prime + 2% for standard borrowers, but the final rate depends on your bank, risk profile, property, loan-to-value and credit assessment.

Year-by-Year Amortization Schedule

Generate a clean annual breakdown showing how much interest and principal is paid each year.

Full Schedule

Loan Amount

Interest Rate

Loan Term

Monthly RepaymentR 0.00

Total InterestR 0.00

Total RepaymentR 0.00

Year	Opening Balance	Annual Interest	Annual Principal	Closing Balance	% Paid Off

Second Bond Calculator

Estimate the impact of taking an additional bond on an existing home loan, including the new second-bond repayment, combined monthly repayment and loan-to-value position.

Existing Home Loan

Current Property Value

Existing Bond Balance

Current Bond Repayment (Optional)

Second Bond Amount Required

Interest Rate for Second Bond

Second Bond Term

Planning LTV Limit

Estimated Second-Bond RepaymentR 0.00

Calculated on the additional bond amount only. Bank approval and final pricing still depend on assessment.

Combined Monthly RepaymentR 0.00

New Total Bond ExposureR 0.00

New Loan-to-Value0.00%

Equity Remaining After Second BondR 0.00

Available at LTV LimitR 0.00

Headroom After RequestR 0.00

Total Interest on Second BondR 0.00

On mobile, results are stacked into readable cards so applicants do not need to swipe sideways to understand the figures.

Important: A second bond is subject to bank approval, property valuation, credit profile, affordability, loan-to-value rules and registration costs. This calculator is an estimate only and should be confirmed with MMB Mortgage Brokers.

Ready to Proceed?

Ready to Take the Next Step?

If you've reviewed your numbers and are ready to proceed with a home loan application, get in touch with me directly.

076 997 6166

💬 Chat on WhatsApp — 076 997 6166

Get in touch via phone, WhatsApp or email — whichever works best for you.

As your mortgage broker, I will submit your application to multiple banks simultaneously to secure the best rate and terms for you — at NO cost to you.

What to prepare

SA ID / Passport

Last 3 months payslips

Last 3 months bank statements

Latest ITA34 if self-employed

Offer to Purchase once you have one

Proof of residence not older than 3 months

MMB Mortgage Brokers is here to make your home loan journey clearer, easier and more professional from first calculation to final bank approval.