Thanks Adrian but this doesn't do what I need it to. 

The link you sent is for domestic reverse charge VAT which is not what I'm talking about. 

The original bill is from a Dutch supplier and doesn't have VAT payable on it BUT reverse charge VAT does apply. I've spoken with an accountant and they have confirmed I need to

1) add 20% of the bill amount to box 1 of the VAT report to pay to HMRC. The supplier doesn't get anything. 

2) As we can claim the above back from the funder (not the same organisation as the Dutch supplier), I also need this to be recorded as an expense. 

I can set up a journal but can only post to VAT control, not box 1. This is what I need to do on QB. 

Can you let me know how I can do this. 

Thank you!