Hi philip11,
Welcome to the Community. QuickBooks Online is a great program that gives you the ability to easily track sales and expenses. I'd be glad to help.
In order to accurately reconcile your transaction, I recommend contacting an accountant. They'll be able to point you in the right direction to reconcile your transaction to keep your books balanced. If you don't have an accountant, we can help you locate a ProAdvisor in your local area.
Let me know if you have any questions, I'll be happy to help.