If a supplier has paid a invoice twice by mistake and i have transferred the payment back, so net effect is zero, how should i assign the transactions?

Hey Chris-Andrewarth,

Welcome to the UK Community Page for QuickBooks Online.

In this case, you need to create the transactions using the Plus Icon, to represent the refund and expense out of the business.

You've used Supplier paid an invocie twice, is this income that's been paid twice? We use supplier to mean vendors/money out. I just want to clarify the query before looking to resolve it for you.