Buying a car cash vs finance in South Africa

Start with the same car

Use the same negotiated purchase price, fuel use, insurance, ownership period and resale assumption on both sides. Otherwise, you may accidentally compare an expensive car with a cheaper one rather than compare payment methods.

For finance, enter the written deposit, term, interest rate and balloon. Ask whether the rate is fixed or linked, and request the full schedule of fees and add-ons. Our simplified model assumes a constant rate with monthly compounding and excludes lender fees and optional products. A real quotation can therefore cost more than the model.

Total cost and monthly cash flow answer different questions

Cash flow is the timing of money leaving your account. A cash purchase has a large upfront payment and no monthly loan instalment. That does not make the car free to own each month: it still consumes fuel, needs upkeep and can lose value.

For a cash purchase, our ownership cost is the purchase price plus running costs, less resale proceeds. For finance, we add the deposit, payments, running costs and remaining settlement, then subtract resale proceeds. That approach counts the financed principal once. Adding the full purchase price again would double-count it.

The calculator spreads ownership cost over the selected number of months to make comparisons easier. That monthly average is not a bill or a required bank balance. Keep the actual upfront amount and regular payments visible when deciding what you can manage.

Account for the money you would keep

Paying cash uses money that would otherwise remain available. Think about the buffer you need for your own circumstances, upcoming expenses and other borrowing. A cheaper total on a spreadsheet is not sufficient if it leaves an impractical cash position.

If your reason for financing is to keep money invested, compare the loan cost with an uncertain, after-tax, after-fee return over the same period. The calculator does not model investment growth, inflation or the opportunity cost of cash. Do not interpret its cash-versus-finance difference as an investment recommendation.

Before deciding, ask what happens if your income changes or you need to sell sooner. You can shorten the ownership period in the tool and adjust the resale assumption to see the effect. For your actual agreement, get a lender settlement quote.

• Use your own insurance quotation for each payment option.
• Check whether a quoted discount depends on taking finance.
• Compare the full written offers, including products you can choose not to buy.

Before you buy

• Keep price, use, resale and ownership period consistent.
• Review upfront cash, regular payments and total cost separately.
• Include lender fees and your own cash-buffer needs outside this simplified example.