Help us improve our website by completing a quick survey. Start survey now

Lock, block and limit your credit card.

You’ll need to update your browser so you can continue to log on to your online banking from 28th February. Update now.


Lock your card with the CommBank app or via NetBank

Enjoy extra control at your fingertips

Lock, Block, Limit gives you more ways to control and customise your credit card via the CommBank app or NetBank.

LOCK in-store international payments

LOCK international payments

If you’re not shopping on an international website or travelling overseas you can lock international online and in-store payments. Then simply unlock them instantly whenever you need to.

LOCK your card temporarily

LOCK your card temporarily

If you misplace your credit card, you can temporarily lock it while you look for it. Then unlock it when you find it again. 

LOCK contactless card payments

LOCK contactless card payments

Now you can lock contactless card payments if you’re not tapping your card to pay. Then simply unlock whenever you need to.

BLOCK ATM cash advances

BLOCK ATM cash advances

Block ATM cash advances if you don’t want to withdraw cash from your credit card.

LIMIT your spending

LIMIT spend per transaction

Set a limit per transaction, then whenever a purchase is above that limit, it’ll be declined and we’ll alert you. 

Lock your card temporarily icon

SET a spending cap

Setting a spending cap helps you keep on top of your spend. And you can still access additional funds if you need them. 

Lock your card in 4 easy steps on the CommBank app


Open the CommBank app and tap the Cards icon on the home screen.

Logon screen

Log on securely (if you haven’t already).

Swipe to choose the credit card you want

Swipe to choose the credit card you want to lock, then tap to manage your card settings.

Select the lock or limit feature you’d like

Select the lock, block or limit feature you’d like to activate. To temporarily lock your card, tap the Lost, stolen or damaged card button.

Lock your card in 4 easy steps using NetBank

Log on to NetBank.

Step 3

Select Credit card settings to lock international or contactless card payments, limit spend, block ATM cash advances or set a spending cap. To temporarily lock your card, go to Lost, stolen or damaged cards.

Step 2

Go to Settings.

Step 4

On the Card settings page, click on the pencil icon, then select Lock on the features you’d like to activate.

Things you should know:

Lock, Block, Limit does not apply to transactions that are flagged as recurring (e.g. direct debits) and transactions not sent to us for authorisation. Except for the spending cap, transactions made via Tap & Pay set up on a compatible smartphone. Some transactions made via CommBank branches, telephone, online or mobile banking, including transfers to other accounts, bill payments, and assisted cash withdrawals are also excluded. Other conditions apply. Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Android and Google Play are trademarks of Google Inc. Mastercard and the Mastercard brand mark are registered trademarks of Mastercard International Incorporated.