What is a loan?

Claudia AinsleyWritten byClaudia Ainsley
Reviewed byMatt Leeburn
Updated 26 Aug 2026

A loan is money advanced by a lender to a borrower, repaid as principal plus interest over an agreed term under a contract.

Also known as: borrowing

Key points

  • The three levers on any loan are the amount, the rate and the term: a longer term lowers repayments but raises total interest.
  • A secured loan is backed by collateral the lender can take if you default; an unsecured loan rests on creditworthiness.
  • Compare the comparison rate, not the headline rate, because it folds in most of the fees. It is mandated only on consumer credit.
  • Repayments amortise the debt: early on, most of each payment is interest, and later most of it is principal.
  • Lenders assess credit history, serviceability, employment and, on secured lending, the loan-to-value ratio.

How a loan works

Types of loan

Applying and comparing offers

Example

Not to be confused with

Lease
a lease pays for the use of an asset someone else owns, while a loan funds buying it yourself
Line of credit
a line of credit is a revolving facility for cashflow rather than a lump sum with a set repayment schedule

Frequently asked questions

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

A secured loan is backed by collateral, such as a property or a vehicle, that the lender can take if you default. That lower risk usually means a lower rate. An unsecured loan has no collateral behind it and relies on your credit history, so it generally costs more.

What is a comparison rate and why does it matter?

The comparison rate combines the interest rate with most of the fees into a single figure, so two offers can be measured on the same basis. It does not capture every fee, so ask for the pre-contractual statement, the Key Facts Sheet on a standard home loan or credit card, and a rate worked out on your amount and term.

Can I refinance a loan to get a better deal?

Yes. Refinancing replaces an existing loan with a new one, usually to reduce the cost or to get features you want. Weigh the whole cost of switching, including break fees on a fixed rate, discharge fees on the old loan and establishment fees on the new one.

How does the cash rate affect my loan?

Variable rate loans often move when the Reserve Bank adjusts the cash rate, which can push your repayments up or down. A fixed rate holds for the fixed period, so it does not move until that period ends. The Reserve Bank explains how the cash rate flows through to borrowers.

What should I do if I cannot make a repayment?

Contact your lender straight away rather than letting the payment slip, because late fees, default interest and, on a secured loan, repossession all follow from a default. Free financial counselling services can help you work out the options, and Moneysmart sets out what to do next.

Go deeper

Sources

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