The Nominal Ledger is the definitive report your accountant will want to see. It is a complete list of all your accounts, and their entries, together with running balances. It is exportable so your accountant can load it directly into a spreadsheet.
Like all the other transaction tables, you can set filters for the Nominal Ledger. You only need to set the Tax Date filter for this report. That way you can view and export each year independently.