Can I select VAT to be applicable on all items on a purchase invoice

I have created only one tax code an i want this to be applied on all my purchase invoice by default. How can i get it done without enabling tax code on each item of my inventory as i hav mor than 400 products in inventory

Cannot be done yet but upcoming improvements to importing will allow you to export all your inventory items including tax code column. Then you can set tax code in bulk in your spreadsheet program, then re-import all data back to Manager.

This will be highly appriciated. As it looks really difficult to update VAT for300 0r 400 produts one by one