Why your home loan deposit matters more than you think

For many South African homebuyers, the option of purchasing a property without a deposit can seem attractive. In some cases, a 100% home loan may make it possible to enter the property market sooner. However, while this may reduce the upfront cash needed, it can come at a significant long-term cost.

A deposit does far more than reduce the amount you need to borrow. It can improve the interest rate a bank offers, lower your monthly repayments, and reduce the total cost of your home loan over time. It also places you in a stronger financial position by reducing risk and improving affordability.

For buyers considering a property purchase, understanding the value of a deposit is an important part of making a financially sound decision.

What is a home loan deposit?

A deposit is the upfront amount a buyer pays towards the purchase price of a property. The balance is then financed through a home loan.

For example, on a property priced at R1.5 million, a 10% deposit would amount to R150,000, reducing the loan required to R1.35 million. A 20% deposit would be R300,000, bringing the loan amount down to R1.2 million.

The larger the deposit, the less money needs to be borrowed, and the lower the risk to the lender.

How a deposit affects your interest rate

When assessing a home loan application, banks consider the loan-to-value ratio, often referred to as the LTV. This is the percentage of the property’s value that is being financed through the loan.

A buyer who needs a full 100% bond represents a higher risk to the bank than a buyer who is contributing a deposit. As a result, buyers with deposits are often offered more favourable interest rates.

In general, the pattern tends to work as follows:

• A buyer with no deposit is more likely to receive a rate at prime or above prime.

• A buyer with a 10% deposit may qualify for a rate at prime or slightly below.

• A buyer with a 20% deposit or more is typically in a stronger position to negotiate a more competitive rate.

Even a seemingly small difference in interest rate can have a substantial effect on the total cost of the loan over 20 years.

Example: The cost difference on a R1.5 million property

To illustrate the impact of a deposit, consider the following three scenarios for a R1.5 million property over a 20-year loan term.

These examples show that the savings come from two sources: borrowing less capital and potentially securing a lower interest rate. Together, these factors can substantially reduce the monthly repayment and the total amount repaid over the full loan term.

The long-term financial impact of a larger deposit

The financial benefit of a deposit extends well beyond the early stages of the transaction. A larger deposit can contribute meaningfully to long-term financial fitness in several ways.

First, it lowers monthly repayments, improving day-to-day affordability and reducing pressure on household cash flow. This can make it easier to manage other ongoing ownership costs, such as municipal charges, maintenance, insurance, and unexpected expenses.

Second, a lower loan amount means less interest is paid over time. Because home loans run over long periods, even modest reductions in the principal debt and the interest rate can translate into significant long-term savings.

Third, a stronger deposit can improve overall financial resilience. Buyers with lower monthly debt commitments may be better equipped to absorb future interest rate increases or changes in personal financial circumstances.

Finally, a deposit may improve a buyer’s position when applying for finance. Banks often view applicants with deposits as lower-risk borrowers, which can strengthen approval prospects and create better room for negotiation.

Is it better to buy now or wait and save?

For many buyers, the decision is not simply whether a deposit is beneficial, but whether it is worth delaying a purchase to save one.

Buying sooner with no deposit may allow a purchaser to enter the market earlier, particularly if property prices are rising or rental costs are high. However, doing so often results in a higher loan amount, a potentially less favourable interest rate, and higher repayments over the long term.

Waiting to save for a deposit may delay the purchase, but it can also place the buyer in a much stronger financial position. The right approach depends on individual affordability, income stability, current debt levels, and local market conditions.

There is no single answer that applies to every buyer, but a deposit can play an important role in protecting long-term financial health.

A deposit is not just an upfront cost

It is easy to think of a deposit as a barrier to homeownership, particularly for first-time buyers. In practice, however, it should also be viewed as a financial tool.

A deposit can reduce the cost of borrowing, improve your interest rate, strengthen your affordability, and support better financial outcomes over the life of your home loan. Even where a buyer cannot reach a full 20% deposit, contributing something upfront can still make a meaningful difference.