In short
The amount a South African bank will lend you for a home is not a mystery number handed down at the end of a long process. It is the output of a calculation you can run yourself in about ten minutes. Lenders start with your gross monthly income, subtract what you already owe and what it costs you to live, apply an affordability rule of thumb - most work on a bond instalment of no more than about 30% of gross income - and then convert that affordable instalment into a loan amount at the interest rate your credit profile earns you.
That is why two people on identical salaries can be offered bonds hundreds of thousands of rand apart. A clean credit record, a permanent job, few other repayments and a deposit saved up will push your number to the top of the band. Store accounts, a vehicle instalment, a thin credit history or an irregular income will pull it down. Below we walk through each of the checks a lender runs, show what they do to the final figure in rand, and set out what you can realistically change before you submit an application.
The calculation
Every home loan assessment in South Africa runs on the affordability rules of the National Credit Act. A credit provider is legally required to establish that you can service the agreement out of your income before it may grant it, and it must be registered with the National Credit Regulator (NCR) to lend at all. In practice that legal duty is implemented as a fairly mechanical sum: what comes in, what goes out, what is left, and what monthly instalment that leftover will comfortably carry.
The industry shorthand is the 30% rule. If you earn R30 000 a month before deductions, a lender will usually work with a maximum bond instalment of around R9 000. Turning that instalment into a loan amount depends entirely on the rate and the term. Over 20 years at 11% a year, R9 000 a month services a bond of roughly R870 000. Drop the rate to 10% and the same instalment carries about R930 000. That is R60 000 of extra buying power bought purely with a better credit profile - which is a good illustration of why the credit record matters as much as the payslip.
The 30% figure is a ceiling, not a promise. Existing credit commitments and your declared living expenses come off first, and whatever is left sets the real limit:
Banks compare all of it against your gross income as a debt-to-income ratio. Below about 36% total debt service is comfortable territory; once the proposed bond pushes the ratio past roughly 40%, the application starts running into resistance, and past 50% a decline is likely regardless of how good the rest of your profile looks. This is the single most useful number to work out before you apply, because it is also the one you can change fastest by settling a small account or two.
The assessment, step by step
Different banks weight these slightly differently and each runs its own scorecard, but every South African home loan assessment covers the same six areas. Knowing what each one is testing tells you exactly where your own application is strong and where it is thin.
Lenders look at gross monthly income first, then at how reliably it arrives.
Permanent, salaried employees have the easiest path: three to six months of payslips and matching bank statements are usually enough. If you are self-employed, on contract or earning largely from commission, expect to supply more - typically two years of financial statements or personal and business bank statements, plus a tax clearance status. Banks tend to average variable income over 6 to 12 months and may discount it, so a commission-heavy package will support a smaller bond than the same total earned as basic salary. Overtime, bonuses and rental income can count, but usually only where you can show a consistent history.
The bureau report explains whether you have honoured credit before, and it sets the interest rate you are offered.
South African bureaus - TransUnion, Experian, XDS and others - each use their own scale, so the band you fall into matters more than the raw number. What the lender is reading is the behaviour behind it: months of on-time payments, how much of your available credit you routinely use, whether there are defaults, judgments or adverse listings, and how many credit enquiries you have made recently. You are entitled to one free credit report a year from each registered bureau under the National Credit Act. Pull yours before the bank does, and dispute anything that is wrong - bureaus must investigate within 20 business days.
Everything you already pay each month is deducted before the bank works out what you can afford.
Your bank statements are the evidence here, so the expense figures you declare need to match what actually leaves your account. Understating them does not help; the assessor will simply substitute realistic figures and may query the difference. Clearing a store account or a small personal loan before you apply frees the whole instalment for the bond, which is often worth far more than the same amount added to a deposit. A R1 500 monthly repayment settled is roughly R145 000 of extra bond at 11% over 20 years.
A deposit lowers the loan-to-value ratio, and lenders price risk off that ratio.
Deposits of 10% to 20% are common and materially improve both your approval odds and the rate you are quoted. On a R1 200 000 property, a 10% deposit of R120 000 cuts the bond to R1 080 000, trims the instalment, and moves you into a lower-risk lending band. One hundred percent bonds are widely available in South Africa, particularly for first-time buyers with clean records and stable salaried income, but they are priced accordingly. Remember that the deposit is not the only cash you need - bond registration and transfer attorney fees are payable on top, and transfer duty applies above the threshold set in the annual Budget.
Stability counts almost as much as the amount.
A permanent employee three years into a role reads as lower risk than someone on a six-month contract earning the same money, and probation is a common reason for a lender to hold back. Fixed-term contract workers are not excluded, but banks will look at the renewal history and the remaining term. If a job change is on the cards, applying either well before or a few months after it usually gives a cleaner result than applying in the middle of the transition.
The bank lends against the property as well as against you, so it forms its own view of what the place is worth.
A valuer appointed by the bank inspects the property and reports a market value. If that value comes in below the purchase price, the bank lends against the lower figure and you cover the gap in cash. Property type matters too: a sectional title unit brings levies into the affordability calculation, while vacant land, smallholdings and unconventional builds are treated more cautiously and may attract a lower loan-to-value cap. Location influences resale risk, which feeds back into the same decision.
Before you apply
Most of what determines your bond amount can be improved, but the changes work on different timescales. Some take one afternoon, others take six months, and it is worth knowing which is which before you start house hunting.
Pull your credit reports and fix errors - a duplicated account or a settled debt still showing as outstanding is common and costs you nothing but time to correct. Settle and close small store accounts and revolving facilities; each one you clear releases its instalment into your affordability. Bring credit card balances down below about a third of the limit, since high utilisation reads as strain even when every payment has been on time. And stop opening new credit: a fresh vehicle instalment or a phone contract taken out weeks before you apply can move the debt-to-income ratio enough to change the answer.
Build an unbroken run of on-time payments - nothing repairs a credit profile faster or more cheaply. Let your bank statements settle into a pattern that shows disposable income each month rather than a balance that runs to zero before payday. Keep saving toward the deposit and the transfer costs, and if your income is irregular, use the time to build the documented history a lender will want to see.
Applying jointly with a spouse or family member combines two incomes and can lift the qualifying amount substantially - but both parties are jointly and severally liable for the full debt, so it is a decision to make with clear eyes. Extending the term from 20 to 30 years lowers the monthly instalment and raises the amount you qualify for, at the cost of considerably more interest over the life of the loan; treat it as a way in rather than a plan, and overpay when you can. If your combined household income falls between R3 501 and R22 000 a month, check whether you qualify for the government's First Home Finance subsidy (previously known as FLISP), which contributes toward the deposit for first-time buyers.
A prequalification from a bank or a bond originator gives you an indicative amount based on your declared figures and a credit check, usually within a day. It is not an approval and it does not bind anyone, but it stops you making an offer you cannot finance, and estate agents take a prequalified buyer more seriously. Once you have a signed offer to purchase, submitting to several lenders rather than only your own bank is worth the effort - banks compete on the margin they add to prime, and a difference of half a percentage point on a R1 000 000 bond is well over R100 000 across 20 years.
Remember
Your qualifying amount is arithmetic, not luck. Understand the inputs and you can influence most of them before a lender ever sees your application.
Most lenders work on a bond instalment of up to roughly 30% of gross monthly income - about R9 000 a month on a R30 000 salary, which supports a bond near R870 000 at 11% over 20 years.
Existing credit repayments and declared living costs are deducted first; a total debt-to-income ratio comfortably under 40% keeps an application in safe territory.
Your bureau record sets the interest rate, and the rate sets the amount - one percentage point on the same instalment is worth roughly R60 000 of extra bond.
A 10% to 20% deposit lowers the loan-to-value ratio and improves both approval odds and pricing; 100% bonds exist but are priced for the higher risk.
The bank values the property independently and lends against the lower of value and purchase price, so a shortfall has to be covered in cash.
Settling one small account, correcting a bureau error or applying with a co-applicant can change the answer more than months of saving - and only NCR-registered credit providers may grant the loan.
Questions and answers
Straight answers to the questions that come up most often when South Africans work out what they can borrow for a home.
Working backwards from the usual affordability rules, a R1 000 000 bond over 20 years at around 11% costs roughly R10 300 a month. At a 30% affordability ceiling that points to a gross income of about R34 000 a month, or a combined R34 000 across two applicants - assuming you have little other debt. Every existing repayment raises the income you would need.
For salaried applicants: a valid South African ID, proof of residence, your last three to six payslips, three to six months of bank statements, and the signed offer to purchase. Self-employed applicants add financial statements, a tax clearance status and business bank statements. Have proof of your deposit ready as well, and check your own credit report before you submit.
Yes. One hundred percent bonds are available in South Africa and are used regularly by first-time buyers with clean credit records and stable salaried income. You still need cash for bond registration and transfer costs, and the rate on a 100% bond is usually a little higher than on the same loan with 10% down.
A cluster of home loan enquiries within a short window is normal and treated as rate shopping rather than as several separate credit hunts. Spreading applications over months, or mixing them with unrelated credit applications, is what reads badly. Submitting through a bond originator puts one set of documents in front of several banks and keeps the process tidy.
It works through the interest rate. A strong profile can earn a rate below prime, while a weaker one is priced at prime plus a margin. On an identical affordable instalment, one percentage point of rate is worth roughly R60 000 of bond on a R900 000 loan - and a poor record can mean a decline or a demand for a larger deposit rather than simply a worse price.
Not harder in principle, but more document-heavy. Lenders want evidence that the income is durable, which usually means two years of financial statements, up-to-date tax affairs and personal plus business bank statements. Variable income is often averaged and discounted, so the qualifying amount may come out below what a comparable salary would support.
The bank lends against its own valuation. If the valuer comes in under the purchase price, the shortfall becomes your problem: you cover it in cash, renegotiate the price with the seller, or walk away if the offer to purchase allows it. Making the offer subject to bond approval protects you here.
An approval in principle often comes back within a few working days once the bank has a complete file. The rest of the process - valuation, formal grant, attorney instructions, bond registration and transfer at the Deeds Office - typically runs from six weeks to three months. Delays are usually caused by missing documents or by the transfer side rather than by the credit decision.
Bond qualification comes down to affordability and deposit. Jacob has verified the worked examples used to explain both.
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