VAT code 8 is excluded from the VAT return as it is out of scope. If you need to include transactions with this code on the return:
Click System.
Click VAT Rates.
Click VAT Code 8 in the list.
Click VAT Return.
Untick the Exclude from VAT Return checkbox.
Click Save.
Per Dimensions version 2.60a/3.00a, the behaviour of VAT code 8 changed from version 2.51f:
Transactions using VAT code 8 (for example, debtors invoices) exist in the database.
In System > VAT Rates, VAT code 8 is configured with all 9 boxes unticked and the Exclude option also unticked.
Print the VAT return (new or reprint), both Summary and Detailed.
Result in v2.51f: The value for VAT code 8 appears in both the VAT Summary and VAT Detailed reports. Result in v2.60a/3.00a: The value for VAT code 8 does NOT appear in the VAT Summary or Detailed report. Advice for v2.60a and 3.00a: It is not possible to configure VAT code 8 with all its VAT return update boxes unticked from the front end. This should not be manipulated from the back end. This change was made for CIS Reverse Charge VAT processing. Any VAT code with none of the Update VAT Return checkboxes ticked will not show values in the summary or detailed breakdown. VAT code 8 transactions are still visible on the Detailed VAT Audit Report.