Thanks for posting here, sweetavenue.
One possible reason why your sales are duplicating is that the imported deposits from Square are added instead of matching them to entries that are already in QuickBooks Online. Allow me to help you in solving this issue.
- Go to the Banking or Transactions menu and select Banking.
- Locate the tile for Square and proceed to the Categorized tab.
- Find the Square transactions and click Undo.
Once done, go to the For review tab. Select the Square transactions to expand the view and tick the Find match button. On the Match transactions page, search the duplicate entry and checked it, then tap Save.
If you want to completely remove these transactions, go to For review tab after you clicked Undo. Then, check the corresponding box and select Exclude.
Need help to balance your accounts? Here's the link you can check: Reconcile an account in QuickBooks Online.
Keep on posting here and we'll respond as soon as we can. Take care!
