The Invoice Status Report lists invoices and their status (paid/unpaid) in a given duration
Go to Reports > Billing > Invoice Status Report
Invoice Date Range: The date range options you have are Last Month, Last Year, This Month, and This Year
Once your filters are set, to preview the report, click the View button at the top right of the window.
Export or Print Report
You can export all reports to either PDF or Excel.
To do so, select the format you want, in the ‘Print as’ field, then click Download
This will save the report to your default downloads location where you can then print, or save to another location.