# Car Loan Calculator

> Monthly car loan repayments, interest and total cost.

URL: https://paycheck-math.com/au/car-loan-calculator/  
Breadcrumbs: Home > Australia > Car Loan Calculator  
Language: en-AU  
Rates checked: 2026-10-25  

Monthly payment, total interest and the full cost of the car, including sales tax, trade-in and fees.

## Result with default inputs

Inputs: price=35000, down=4000, trade_in=0, sales_tax_rate=0, fees=0, rate=7, months=60

**Monthly payment: $613.84**

- Total interest: $5,830.23
- Total cost of the car: $40,830.23

| Line | Item | Amount |
| --- | --- | --- |
| 1 | Sales tax | $0.00 |
| 2 | Amount financed | $31,000.00 |
| 3 | Total interest | $5,830.23 |
| 4 | **Monthly payment** | $613.84 |


To compute other inputs, call the JSON API: `https://paycheck-math.com/api/v1/calculate?path=%2Fau%2Fcar-loan-calculator%2F&price=35000&down=4000&trade_in=0` or open the page URL with the same query parameters.

## Payments by loan term

_Financing $31,000 at 7% APR_

| Term | Monthly payment | Total interest |
| --- | --- | --- |
| 36 months | $957 | $3,459 |
| 48 months | $742 | $4,632 |
| 60 months | $614 | $5,830 |
| 72 months | $529 | $7,053 |
| 84 months | $468 | $8,301 |

## How it's calculated

1. Sales tax is charged on the price minus the trade-in value in most places.
2. Amount financed = price + tax + fees − down payment − trade-in.
3. Monthly payment = P × r / (1 − (1 + r)^−n), with r the APR ÷ 12.

## Questions people ask

### Is a longer car loan cheaper?

The monthly payment is lower but you pay more interest overall, and you may owe more than the car is worth for longer.

### Does a bigger down payment help?

Yes. It lowers the amount financed, the payment and the total interest.

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Estimates for information only, not tax, legal or financial advice. Check with an adviser or the official tax authority.