Good morning Stephen.  Thank you for your query.

There is no way to match a Purchase invoice and a Sales invoice in the same transaction.

Are the Purchase and the Sale (management fee i assume) being paid to the same business entity?

If we can determine if the situation you reference is an actual Contra scenario then we can advise further.

Thank you. It is the same supplier for both the Sale and purchase. And yes it is a management fee usually. I did find a post that referenced Contra Bank Accounts, is this the solution you would propose?

Good morning Stephen

If you need to use an invoice for the management fee then yes.... using a contra account is the best way to process it.

If you can do without the invoice for the Management Fee then you could consider a Credit Note against a different nominal code - depending on the VAT scheme you operate the process would differ to do this (and correctly account for any VAT)

Thank you. Looks like I have a solution

You say "There is no way to match a Purchase invoice and a Sales invoice in the same transaction." but why not? i have multiple traders i supply to and buy from... and therefore offset purchases against sales - it seems to be so difficult to manage this easily in Sage... I'm hoping you can point me toward a simple set up to handle all of these... Thank you!