Extra control at your fingertips

Secure your account. Manage your spending

Securely lock your CommBank Debit Mastercard when you need to. And unlock it again when you don’t.  Use it to help minimise your spending while you’re working out the best financial decisions for you.

  • Temporarily lock your card
    Misplaced your card or had it stolen? Add a temporary lock while you look for it. And unlock your card if you find it
  • Lock contactless payments
    Prefer not to tap & pay with your card, then add a lock to only pay using your PIN
  • Lock online payments
    If you’re not shopping online regularly, add a lock to stop online payments from your card
  • Lock in store international payments
    Spending too much while you’re overseas or staying in Australia for a while? Lock your card to stop international in store payments.

Lock in the CommBank app

You’ll need to have the CommBank app installed on your phone

  1. Log on securely to the CommBank app & tap Cards on the home screen
  2. Swipe to the card you want to lock and tap on the image
  3. Choose to which lock to activate
  4. Log off once you’re done

Lock in NetBank

If you’re not already registered for NetBank, you can register now

  1. Log on securely to NetBank & click on Settings
  2. Click  on Lost, stolen or damaged cards in the Card security & limits section
  3. Click on Manage beside Debit Mastercard and choose which lock to activate
  4. Log off once you’re done

Backed by our 100% security guarantee

Our 100% security guarantee protects you from unauthorised transactions on personal and business accounts when you protect how you access your accounts and tell us if something is wrong. Tell me more.

Mother and daughter with tablet

See exactly what you're spending

Your spending decisions, no matter how small, all add up.

Spend Tracker categorises every debit (and credit card) transaction, making it easier to see the impact your spending decisions have on your everyday finances. If you’re locking your debit card so you don’t stray off track, take a look at Spend Tracker.

Things you should know

Locks don’t apply to transactions that are flagged as recurring (e.g. direct debits) and transactions not sent to us for authorisation.  Transactions made using Tap & Pay set up on a compatible smartphone aren’t blocked. Some transactions made in CommBank branches, telephone, online or mobile banking including transfers to other accounts, bill payments, and assisted cash withdrawals are also excluded. Other conditions apply.

Full terms and conditions available on the CommBank app. The CommBank app is free to download however your mobile network provider charges you for accessing data on your phone. Find out about the minimum operating system requirements on the CommBank app page. Terms and conditions are available on the app. NetBank access with NetCode SMS is required.