Is a car loan or personal loan cheaper for buying a car?

Car loans are usually cheaper because the vehicle serves as security, reducing the lender risk. But personal loans offer more flexibility — no asset encumbrance and no restrictions on the vehicle age or type.

What is the difference between a secured and unsecured car loan?

A secured loan uses the car as collateral, giving lower rates but restricting your ability to sell until the loan is paid. An unsecured personal loan has no collateral, higher rates, but full ownership flexibility.

Can I use a personal loan to buy a car privately?

Yes. Personal loans work for private sales, older vehicles, and situations where a secured car loan would not be available or practical.

Car Loan vs Personal Loan Australia | Which to Use

By AusTaxTools Editorial Team · March 16, 2026

Short answer

Car loans offer lower rates because the vehicle is security. Personal loans cost more but give you full flexibility — no asset encumbrance, no vehicle age restrictions, and easier private sale purchases. The right choice depends on your priorities: cost or control.

Secured car loan

Lower rates (typically 1–3% less), but the lender holds security over the vehicle. You cannot sell or trade without settling or refinancing first. Best for newer vehicles from dealerships.

Unsecured personal loan

Higher rates, but no asset encumbrance. You own the car outright from day one. Works for private sales, older cars, and situations where a secured loan is impractical or unavailable.

Balloon payment option

Car loans can include a balloon — a lump sum at the end that lowers monthly repayments but increases total interest. Useful for cash flow, risky if you cannot refinance or pay at maturity.

Common mistakes

Choosing a car loan purely on rate without considering the restrictions on selling or modifying the vehicle.
Using an unsecured personal loan for a new car when a secured loan would save thousands in interest.
Accepting dealer finance without comparing to bank or online lender rates — dealer margins can be substantial.
Setting a balloon payment without a clear plan for how to handle it at maturity.

Car loan repayments

Calculate secured car loan repayments across frequencies and terms.

Personal loan repayments

Compare unsecured personal loan repayments for the same purchase amount.

Balloon payment calculator

Model how a balloon changes monthly repayments and total cost.

New vs used comparison

Total cost comparison including depreciation, rates, and running costs.

Fixed vs variable for car loans

Decide whether to lock or float on a shorter-term vehicle loan.

Match the loan to the purchase

The cheapest loan is not always the best loan. Match the structure to how you buy and own.

Compare both options side by side before settling on a financing path.

Compare car loan options

Related Guides

Novated Lease Explained

How novated leases work, tax benefits, and whether salary packaging a car makes sense for your situation.

Buying New vs Used: Financing

Compare financing options, depreciation impact, and total cost of ownership for new and used vehicles.

Frequently Asked Questions

Is a car loan or personal loan cheaper for buying a car?: Car loans are usually cheaper because the vehicle serves as security, reducing the lender risk. But personal loans offer more flexibility — no asset encumbrance and no restrictions on the vehicle age or type.
What is the difference between a secured and unsecured car loan?: A secured loan uses the car as collateral, giving lower rates but restricting your ability to sell until the loan is paid. An unsecured personal loan has no collateral, higher rates, but full ownership flexibility.
Can I use a personal loan to buy a car privately?: Yes. Personal loans work for private sales, older vehicles, and situations where a secured car loan would not be available or practical.