About this calculator
Amortisation formula applied to (price − deposit − balloon).
Buying a car on finance is one of the biggest monthly commitments most South Africans take on. This calculator shows what your vehicle finance instalment will be once you factor in your deposit, an optional balloon payment, the interest rate and the contract term. It uses the standard amortisation formula applied to the amount actually financed.
A balloon payment is a lump sum due at the end of the contract that is excluded from the monthly amortisation. Choosing a balloon lowers the monthly instalment but means you must settle, refinance or trade the vehicle in to clear the balloon when the term ends. The calculator shows the balloon amount separately so you can plan for it.
Vehicle finance rates in South Africa are usually quoted as prime plus a margin and depend on your credit profile, the deposit and the type of vehicle. Terms of 60 to 72 months are common. Remember that the calculator excludes on-the-road fees, comprehensive insurance and tracking — these add meaningfully to your true monthly cost of ownership.
How to use it
- 1Enter the vehicle price. Type the negotiated on-the-road price.
- 2Add your deposit. Cash or trade-in value applied upfront.
- 3Decide on a balloon. Optional lump sum due at the end of the contract.
- 4Set rate and term. Use the rate offered by the bank and a 60–72 month term.
- 5Check the instalment. Confirm you can afford it alongside fuel, insurance and maintenance.