What is an acceleration clause?

Claudia AinsleyWritten byClaudia Ainsley
Reviewed byMatt Leeburn
Updated 26 Aug 2026

An acceleration clause is a term in a loan contract that lets the lender demand the whole outstanding balance immediately if the borrower breaches the agreement.

Also known as: acceleration provision, accelerated payment clause

Key points

  • The usual trigger is default: missed repayments, a breach of covenants, or selling the secured asset without consent.
  • Once accelerated, the full principal plus interest and fees falls due, not just the payments you have missed.
  • For regulated consumer credit the lender must give a default notice under the National Credit Code and let the remedy period run before enforcing.
  • Acceleration normally comes before the lender enforces its security or starts repossession.
  • Under the National Credit Code a hardship notice must be decided within the statutory period; business facilities follow lender policy or the Banking Code.

How an acceleration clause works

What triggers acceleration

What happens next

Example

Not to be confused with

Default
default is the breach itself, acceleration is what the lender is entitled to do about it
Early settlement
early settlement is the borrower choosing to pay out early, acceleration is the lender demanding it

Frequently asked questions

What triggers an acceleration clause?

Most often missed repayments that are not brought up to date after a default notice. Contracts also list breaches such as false information in the application, letting insurance lapse, selling the secured asset without consent, breaching a covenant, or an insolvency event.

Can a lender demand full repayment of a loan?

Yes, where the contract contains an acceleration clause and a triggering event has occurred. For regulated consumer credit the lender first has to give a default notice and allow the stated period to pass. Commercial facilities generally give the lender more freedom to act quickly.

What happens after a loan is accelerated?

The whole balance becomes payable immediately. If it is not paid, the lender can enforce its security, which may mean repossessing the asset, appointing a receiver, or pursuing a guarantor. Default interest and enforcement costs are usually added to what is owed.

Is an acceleration clause legal in Australia?

Yes, and it appears in most loan contracts. Regulated consumer credit contracts have to comply with the notice requirements in the national credit legislation, and terms in standard form consumer or small business contracts can be challenged if they are unfair.

How do you stop a loan being accelerated?

Acting during the default notice period matters most, and paying the arrears usually cures the default. A hardship notice asks the lender to vary the contract: under the National Credit Code it must be decided within the statutory period, while business facilities follow lender policy or the Banking Code. AFCA and free financial counselling are also available.

Go deeper

Sources

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