What is Umart's Australian Business Number (ABN)? Grant November 22, 2017 22:18 Updated Follow Umart's ABN is 74 076 486 416. This can also be found at the top of all of our receipts. Related articles Umart Amazon Price Match Guarantee How do i change the Billing Address on my account? What does 24-48hrs mean? What is Umart Online's Phone Number? Why can i only get delivery from the Mt Waverley Store?