In your VAT settings, you can choose to set a default VAT percentage for your sales, which will be applied to all transactions that have an income category.  In the bookkeeping feature, if the transaction is matched to an invoice sent through the Invoicing tool, we’ll then override your default with the VAT charged on the invoice. 

For an expense transaction, we can’t set the VAT by default because it will vary depending on what you bought. You’ll need to set the VAT you’re reclaiming for each expense.

Lastly, add an attachment to the transaction to move it to ‘completed’.