If I have changed the vat code on an expense transaction from NO VAT to 0.0% Z why doesn't the transaction appear in the vat return?

Hello Julie185, Thanks for posting on the Community page, So it should show for you. If the period has been filed then it won't show on the filed return but will in the current exceptions report, or if the transaction is dated after the current open period it won't show until the period that it is dated within. If none of them applier please try clearing your cache and cookies to all time, close the browser down, reload it and log back in and see if it resolves it for you.