CommBank being “down” can have a few different causes, and there have been several recent outages and maintenance windows that match what people search for when they ask “why is CommBank down?”. The exact reason in your case depends on whether this is a planned maintenance window, a technical outage, or something local to your device or network.

Recent reasons CommBank has been down

  • Planned maintenance (scheduled outage)
    • CommBank has recently taken services offline overnight or in the early morning for planned maintenance, during which some transfers, payments and app features are unavailable until a set time (for example, until about 9am AEST in a September 2025 window).
* In these cases, debit cards and some services still work, but limits may be lower and certain transfers or scheduled payments are delayed until after the maintenance window.
  • Major technical outage (unplanned)
    • In late 2025, CommBank had a significant nationwide outage where ATMs, online banking and the mobile app went offline, leaving customers unable to access money or make payments for a period of time.
* The bank said this was due to a technical issue affecting some services, and reported that services were progressively restored over a few hours before announcing all services were back to normal.
  • No current scheduled maintenance (as of mid‑Jan 2026)
    • CommBank’s own service updates page has recently shown no planned maintenance scheduled, meaning any sudden inability to log in or make payments right now is more likely to be an unplanned issue or something on your side (device, app, or network).

How to check if CommBank is actually down

If you’re trying to figure out right now why CommBank seems down for you, these steps usually help:

  1. Check CommBank’s official service status page
    • CommBank publishes live service updates and outage notices on its support site, including planned maintenance, partial outages, and branch disruptions.
  1. Look at trusted news sources
    • Major national outages tend to appear very quickly on Australian news sites, which have previously reported when CommBank’s ATMs, app and online banking all went offline at once.
  1. Check outage trackers / forums
    • Outage‑tracking websites and local forums (e.g. Australia/Melbourne communities) often light up with “Is CommBank down?” posts when there’s a widespread issue, which can confirm it isn’t just your account or device.
  1. Rule out local/device issues
    • Try:
      • Switching mobile data ↔ Wi‑Fi
      • Force‑closing and reopening the app, or reinstalling to ensure the latest version
      • Checking another device or browser to see if the problem is the same.

Common scenarios that feel like “CommBank is down”

  • Card works, but transfers don’t
    • During maintenance windows, card payments can still be used, but some transfers, PayID, scheduled payments or higher‑value transactions may not go through until the maintenance window ends.
  • ATM or EFTPOS failing at checkout
    • In the October 2025 outage, customers reported ATMs shutting down mid‑transaction and being unable to top up accounts at supermarket checkouts due to service disruptions.
  • App errors or login issues only
    • Sometimes the app login or specific features glitch while core banking systems remain available; these are often fixed relatively quickly and may not be classed as a full “significant outage”.

What to do if you’re stuck right now

  • Try card payments if they still work, but be prepared for lower limits or declined higher‑value transactions during a disruption.
  • If you must pay something critical, consider alternative payment methods (another bank card, cash, or a different account) until CommBank confirms services are fully restored.
  • Keep an eye on CommBank’s service update page and major news sites for confirmation of any ongoing incident and estimated fix time.

Information gathered from public forums or data available on the internet and portrayed here.