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

Upgrade your browser for the best CommBank website experiences. Click here.

Close

Contact us

Contact us using the details below or visit commbiz.com.au to find an answer to your query.

To change your contact details, please contact your CommBiz Administrator to update them online.

CommBiz 13 2339 (24 hours, 7 days)
+61 2 9115 1479 (International callers)
Email
CommBiz Markets 1300 CBA EFX / 1300 222 339 (8am - 6pm EST, Monday - Friday) Email
CommBiz Global Trade 1300 654 112 (8.30am – 5.30pm EST, Monday – Friday) Email
Business Banking 13 1998 (24 hours, 7 days)  Email
Merchant Services 1800 230 177 (24 hours, 7 days) Email
Commercial Cards 13 1576 (24 hours, 7 days)
+61 13 1576 (International callers)
Email
Asset Finance 1800 811 446 (8am – 8pm EST, Monday – Friday)  Email
CommSec 13 1519 (8am – 8pm EST, Monday – Friday) Email
Colonial First State 13 1336 (8am – 7pm EST, Monday – Friday) Email