Hi there useraccounting45,
It's important that all your bills are correctly marked as paid for your books to be well balanced. QuickBooks Online has a variety of reports able to help you see the different aspects of the finances of your company. I can provide some information about reports.
One report you can view is the Unpaid Bills report, located in the What you owe section. There isn't the option to filter it by a certain due date, however, it does show all bills that haven't been paid yet.
If you have any other questions, feel free to reach out here.