How of I change the date format to dd/mm/yyyy?

Welcome to the Community, cnorcott.

Changes to the date format in your QuickBooks Online account will apply to all transactions and reports. Here's how to make the change:

1. In the upper-right corner of the page, select the Settings (⚙) menu, then Account and settings.
2. Go to the Advanced tab and scroll down to Other preferences.
3. Click Edit, then set the Date format to dd/mm/yyyy.
4. Select Save, then Done.

Let us know if you need anything else. We’re here to help.