Mersal Billing across currencies without rewriting history
The situation
Half the client base pays in one currency and the firm reports in another. The tax authority wants the VAT line in a third.
What goes wrong without a system
Everything converts at today's rate, so last year's revenue changes every morning and no figure can be repeated to an accountant without an explanation.
How it runs in Mersal
Bill in the client's currency
The invoice carries its own currency and its own rate, entered at issue.
The rate freezes
That rate is stored on the document. Reporting derives from it, so the market moving does not move history.
Carry tax locally
The VAT line can be denominated separately, for the authority that asks for it.
Change base currency deliberately
If the reporting currency changes, Mersal asks whether to convert at a stated rate or relabel one-to-one, and re-bases reporting without touching what clients were charged.
What it prevents
- Revenue that changes overnight
- A settings change rewriting issued invoices
The fastest way to judge this is to watch it run against your own way of working.