Can I invoice different customers in different currencies?
Currency is set at business level, so a single Gaffer business bills in one currency. Businesses that genuinely trade in two currencies usually run them as separate entities, which also keeps VAT and reporting clean.
Does this convert between currencies?
No. It sets the currency your business operates and invoices in. It is not an FX tool and does not apply exchange rates to individual transactions.
Why is locale separate from currency?
Because they are genuinely different things — an Irish business and a UK business both handling euro-or-sterling amounts still format dates and separators differently. Keeping them separate avoids guessing one from the other.
Does UK VAT still work?
Gaffer's VAT handling, CIS deductions and MTD-ready VAT summaries are built around UK requirements. If you are trading outside the UK tax system, check that the finance features match your obligations before relying on them.