What is collateral?

Claudia AinsleyWritten byClaudia Ainsley
Reviewed byMatt Leeburn
Updated 26 Aug 2026

Collateral is the property a borrower pledges to a lender as security for a loan, which the lender can sell if the borrower defaults.

Also known as: security property, pledged asset, loan security

Key points

  • Typical collateral is the thing being financed: a house, a ute, an excavator, or a business's stock and receivables.
  • The lender registers its interest, on the land title for property or the Personal Property Securities Register for goods.
  • Lenders advance a proportion of the value, measured by the loan to value ratio, leaving a buffer if prices fall.
  • If you default the lender can repossess and sell the collateral, then pursue you for any shortfall.
  • Collateral is what separates secured borrowing from an unsecured loan, where nothing specific stands behind the debt.

How collateral works

What lenders accept

Collateral in Australian finance

Example

Not to be confused with

Security (collateral)
the legal interest the lender holds, where collateral is the property that interest attaches to
Collateral risk
the risk the collateral is worth less than expected by the time it has to be sold

Frequently asked questions

What does collateral mean on a loan?

It means a specific asset is pledged to the lender as backing for the debt. You keep using it, but the lender holds a registered interest over it. If you default, the lender can take that asset and sell it to recover what it is owed.

What can be used as collateral?

Property is the usual collateral for home and commercial lending. For business finance it is normally the asset being bought: a vehicle, truck, trailer or piece of plant. Some facilities are secured over stock, receivables or a general charge over company assets.

What happens to collateral if I default?

The lender can enforce its security, which usually means taking the asset and selling it. Proceeds go against the debt, and you stay liable for any shortfall plus enforcement costs. Consumer credit rules require notices before that point, so speak to the lender early about hardship options.

Is collateral the same as security?

They are used interchangeably in conversation, but strictly speaking collateral is the asset and security is the legal interest the lender takes over it. Australian documents and registrations tend to use the word security, while collateral is more common in accounting and international finance.

Can the same asset be collateral for two loans?

Legally yes. A second lender can take security behind the first and ranks after it on the register, recovering only what is left once the first is paid. In practice most asset finance contracts prohibit granting further security over the same item without the first lender's written consent.

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Sources

This article is general information only and is not financial advice.