Better way of doing expenses in foreign currency

[WordIsBond]

@ASB
The link you cited is for VAT, which is probably helpful for OP, since he's asking about FreeAgent and presumably using it for his VAT reporting.

You note well that the currency gain/loss matters in terms of invoices/payments, and that's the primary context in which it is used in my accounts. I do incur foreign expenses, but the main currency transactions are invoice/payments, since most of my clients are foreign.