The steps.
Open Reports to review invoiced totals, paid invoices, outstanding amounts and overdue balances.
Read Paid invoices by issue month as a grouping of paid invoices by their invoice date. It does not show the date cash was received.
Choose the sections to show, then export CSV or use the print/PDF option. Use Settings → Tools for the separate account data export.
Before you finish.
Outstanding includes overdue invoices. Foreign-currency invoices without a usable exchange rate are excluded from sterling figures and identified on the report.