Hello, Avrile. 

Yes, you can show the VAT from your Purchase order/ bill and Invoice. We need to ensure that rates and codes are activated. 

Once the code has been selected and the transaction is saved, QuickBooks will automatically account for the reverse charge and the VAT will be reflected on your VAT return. 

Here's an article about this for more details: Set up and use VAT in QuickBooks Online. 

Let me also share this article for FAQ feature VAT in QBO: VAT Feature Update FAQ

Let me know if you need further help with setting up you VAT in QBO. I'll be here to help anytime. Take care!