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Car Loan Repayment & Balloon Payment Calculator

Work out monthly car finance repayments, total interest, and the balloon residual owing at term end.

Last reviewed by the myCalculator Editorial Team

This calculator uses Australian rules and Australian data sources. Results may not apply outside Australia.

Input Parameters

$
$
%
years
%

A balloon lowers monthly repayments but leaves a lump sum owing at term end.

$

Calculation Results

Monthly Repayment
$819/mo
Balloon / Residual Amount
None
Total Interest Payable
$8,737
Total Amount Payable
$49,132
Loan Amount (incl. establishment fee)
$40,395
Comparison Rate (Approx)
8.19% p.a.
Loan Term
5 Years (60 months)
Summary: Financing $40,395 at 7.99% p.a. over 5 years, your monthly repayment is $819. Total interest cost: $8,737.
Step-by-Step Calculation Solution
1.Loan Amount = Vehicle Price - Deposit + Fees = $45,000 - $5,000 + $395 = $40,395
2.Balloon Amount = $45,000 × 0% = $0
3.Amount Financed (ex. balloon) = $40,395 - $0 = $40,395
4.Monthly Repayment = P × r(1+r)^n / ((1+r)^n - 1) = $819
5.Total Repayments = $819 × 60 months + $0 balloon = $49,132
6.Total Interest = $49,132 - $40,395 = $8,737

Formula & How Car Loan Repayment & Balloon Payment Calculator Works

Mathematical Formula
M = (P - Balloon/(1+r)ⁿ) × [r(1+r)ⁿ] / [(1+r)ⁿ - 1], where P = Price - Deposit + Fees

A car loan is repaid in equal instalments that cover interest and principal. On a $45,000 car with a $5,000 deposit and a $395 establishment fee, the amount borrowed is $40,395. At 7.99% over 5 years the repayment is about $819 a month, and total interest is about $8,737. A balloon or residual payment lowers the monthly repayment but leaves a lump sum to pay at the end, and increases the total interest. Compare the comparison rate, which includes fees, not just the headline rate, and check whether you can make extra repayments. A shorter term costs less interest overall, and a bigger deposit lowers both the repayment and the interest.

How to Calculate Car Loan Repayment & Balloon Payment Calculator (Step-by-Step)
  1. Enter Vehicle Price ($) ($): Input your target parameter value.
  2. Enter Deposit / Trade-In ($) ($): Input your target parameter value.
  3. Enter Interest Rate (% p.a.) (%): Input your target parameter value.
  4. Enter Loan Term (Years) (years): Input your target parameter value.
  5. Enter Balloon / Residual (% of Vehicle Price) (%): Input your target parameter value.
  6. Enter Establishment Fee ($) ($): Input your target parameter value.
  7. Apply Formula: Calculate using M = (P - Balloon/(1+r)ⁿ) × [r(1+r)ⁿ] / [(1+r)ⁿ - 1], where P = Price - Deposit + Fees.
  8. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)

Does a balloon payment make a car loan cheaper?

No. A balloon lowers the monthly repayment but raises total interest, because the balloon amount remains outstanding for the entire term and accrues interest the whole time.

What interest rate is typical on an Australian car loan?

Secured new-car loans from banks typically run 6.5%–9% p.a., while unsecured personal loans used for older vehicles commonly sit between 10% and 16% p.a.

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Calculated via mycalculator.com.au — Free Australian Calculator Hub
Official Regulatory & Government Data Sources

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Independent & Verified

Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

Australia Lending DeskACL Regulated

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