Balloon Payments Explained: Car Loans Australia

Short answer

A balloon payment (also called a residual) is a lump sum set aside at the start of a car loan and left owing until the final month, instead of being paid off gradually like the rest of the loan. It lowers the regular monthly repayment because less of the loan is being amortised — but it increases total interest paid, because a larger balance sits accruing interest for the full term, and it leaves a sizeable lump sum due when the loan ends.

What a balloon payment actually is

When a car loan is set up with a balloon, the lender splits the vehicle finance into two parts: the balloon percentage (commonly 20-40% of the purchase price) that stays untouched until the last payment, and the remaining balance, which is amortised into regular monthly repayments over the loan term in the normal way. The monthly repayment is calculated as if only the non-balloon portion needs to be paid off — the balloon amount itself is added as one final lump-sum instalment at the end.

This structure is common for business vehicles, novated leases, and buyers who plan to trade in, sell, or refinance the car before or at the end of the loan term rather than keep paying it down to zero.

Choosing a balloon percentage

Lenders typically cap balloon percentages based on the vehicle's age and expected useful life — newer vehicles on shorter terms can often carry a higher balloon than older vehicles on longer terms, reflecting how quickly the car is expected to depreciate. A sensible starting point is to set the balloon no higher than the vehicle's realistic resale value at the end of the term, so a trade-in or private sale can cover the lump sum without needing to refinance. Setting the balloon too aggressively — higher than likely resale value — is what turns "manageable monthly repayment" into "unexpected shortfall" at the end of the loan.

Worked example: $40,000 car loan, 5 years, 30% balloon

On a $40,000 car loan at the 7.5% reference rate over 5 years with no balloon, the standard monthly repayment is $802, and total interest over the term comes to about $8,091.

Structuring the same loan with a 30% balloon ($12,000) lowers the monthly repayment to $636 — a saving of about $165 a month — but leaves that $12,000 owing as a lump sum at the end of month 60. Total interest across the term rises to about $10,164, roughly $2,073 more than the no-balloon loan, because the $12,000 balloon portion sits accruing interest at 7.5% for the full 5 years without ever being reduced.

In other words, the balloon trades a smaller monthly commitment now for a larger total cost and a $12,000 obligation waiting at the end of the term.

End-of-term options

• Pay out in cash. If the balloon amount has been saved separately or the vehicle is sold, the lump sum can be paid off in full and the loan closed with no further debt.
• Refinance the balloon. The residual amount can be rolled into a new loan, spreading it over a further term — but this adds another round of interest and should be budgeted for rather than assumed as a default outcome.
• Trade in or sell. Many buyers use the vehicle's resale or trade-in value at term end to cover the balloon, particularly if the balloon percentage was set conservatively relative to expected depreciation.

Novated lease residuals work the same way

A novated lease uses the same residual-value mechanic as a car loan balloon, but the residual percentage isn't freely chosen — it follows ATO minimum residual value guidelines based on the lease term. See our novated lease guide for the specific percentages and how salary packaging changes the comparison.