Hi @TimWh0
You're on the right lines - you have to have 0% going to Box 1 (Sales & Other Outputs).
As 0% is always £nil, the effect on the VAT owed is £nil.
There's no real need to create a custom code (Exempt or Z=0% have the correct effect on the VAT Return).
I have a custom code for Exports & Imports - purely to pick them out in reports.
Hope this helps.
