Why are my contra accounts upside down
Ensure you understand how Xeros' reporting works
Xero displays alphabetically.
This means that if you have 10 accounts in a group, they will start at A and end at Z.
This creates issues for contra accounts.
This is because the are often named "Accumulated depreciation", which starts with A.
Here is the correct layout to remove this issue.
Plant & Equipment
Plant & Equipment - Accumulated Depreciation
By using a "space hyphen space", you are guaranteed to get them displaying correctly.