Can I have 2 companies setup under the same account one using euro and the other sterling?
Nope, one currency one account. you can bill and receive payment in multiple currencies but every account has to have a home currency you couldn’t have two in one set of books.
Why would you want to do that out of curiosity.
Well then you just invoice in Stg. When you’re creating an invoice you’ll “advanced..” click that an you can change currency.
Bullet if a full multi currency accounting product, so we’ll manage all the tax implications of FX gain/loss.
Sounds like you don’t need 2 accounts. Also if you’re an Irish company then you’ve to report in Euro.
If you click on Invoice Settings you’ll see you can add Invoice Templates and create multiple brands under the one accounts package.