This is one of the most common questions we get from clients, and the answer is usually straightforward: foreign exchange rates.

The currency we bill you in is set out in the Terms & Conditions section of your signed Proposal.

In the example above, every invoice is issued in euros (EUR). If any of your employees are paid in a currency other than your billing currency, we convert their local-currency amounts into your billing currency for the invoice.

When an employee's local currency matches your billing currency, the amounts on your invoice, recurring income, employer burden, and financial charges, stay steady from month to month, unless something else changes them, such as a salary increase or a one-off business expense.

When an employee's local currency is different from your billing currency, we apply the exchange rate on the date the invoice is generated to convert their local-currency amounts. Because exchange rates fluctuate daily, the converted amount in your billing currency can shift slightly each month, even though the employee's pay in their own local currency hasn't changed at all.

Say your invoice is billed in euros, and you have two employees paid outside the eurozone: one in Turkey, one in Croatia. Here's how their local-currency pay converts to euros on the invoice, using that month's exchange rate.

Next month, the exchange rate will almost certainly be slightly different, so the euro amount on the invoice moves too, even though each employee's local-currency pay stayed the same. That's the mechanism behind most month-to-month invoice changes for clients with employees outside their billing currency's country.

You can always verify an employee's payroll information directly in the platform. After logging in, go to Pay, then Report, in the left-hand panel.