The currency is part of the transaction
A transaction is recorded in the currency it was actually struck in, together with the rate applied at the time. That is what makes it possible to answer, months later, both what the customer was charged and what it was worth to you — two different questions that a single-currency system collapses into one.
Exchange differences are posted, not absorbed
When an invoice raised in one currency is settled later at a different rate, the difference is a real gain or loss. It posts to the ledger as one, rather than quietly distorting the revenue figure. Your margin stays honest and your auditor can see the movement.
- Transaction currency and rate stored on the document
- Realised exchange gains and losses posted on settlement
- Reporting in your base currency, with the detail preserved underneath
Presentation follows the customer
Prices can be presented in the currency the customer expects while you are paid and account in yours. Currency symbols and formatting derive from the currency itself, so a price never displays with the wrong symbol against it.
Why this matters beyond exporters
Multi-currency is not only for businesses that trade internationally. A hotel taking bookings from overseas guests, a distributor importing stock, or any business in a market with an unstable local currency all need to hold more than one currency honestly. Treating that as an advanced edge case is how reporting drifts away from reality.