Documentation

Documents

Foreign-currency invoices

Updated 23/09/2026

For foreign customers duplo issues documents (quote, proforma invoice, advance and final invoice, credit note) in a foreign currency (EUR, USD or CHF) with a bilingual PDF — all labels are in Serbian and English, while the content of the line items stays as you entered it (you add the translation of the name/description yourself).

Setting on the customer

On the customer card you choose the document currency and the document language. Automatic suggestion by country: Serbia → Serbian + RSD; any other country → bilingual + EUR — you can change both manually (e.g. leave Serbian as the language for a customer from Croatia, and EUR as the currency). A new document inherits the customer’s settings; in the document form you can change them for that particular document.

Prices and the exchange rate

  • Prices on a foreign-currency document are in the document’s currency. When you choose an item with a price in another currency, the programme suggests a conversion at the NBS middle rate — round the amount freely (export prices are usually agreed in round figures).
  • Changing the currency on the document recalculates the prices already entered at the NBS middle rate (a line item from the item list from the item’s price in its own currency, a free-text line item from the amount so far) and shows the calculation next to every line item — check the amounts before saving. Without an available rate the prices stay in the old currency and the form says so clearly.
  • On issuing, the NBS middle rate is locked on the document and printed on the PDF together with the RSD equivalent — a trace for the accountant and customs. Without an available rate a foreign-currency document cannot be issued (a draft can).
  • In the KPO ledger and the business overview a foreign-currency document enters at the RSD equivalent at the locked rate.

A quote in EUR to a domestic customer (currency clause)

Quotes and proforma invoices for domestic customers are often made with prices in EUR. On the document change the Currency to EUR (the customer keeps RSD as the default); VAT is calculated normally, and in the Note the programme suggests a currency clause („Cene su iskazane u EUR. Obračun raditi na dan plaćanja po srednjem kursu NBS.“ — Prices are stated in EUR. Settlement at the NBS middle exchange rate on the payment date.), not the export note — edit it according to your contract. On the PDF for a domestic customer neither the exchange rate nor the dinar equivalent on the issue date is printed (settlement goes at the rate on the payment date); the rate is nevertheless locked on issuing for the KPO ledger and the business overview. The invoice to that customer goes in dinars: copy the quote into an invoice and change the currency to RSD — the prices are recalculated at the rate on that day — then send it to SEF.

VAT note for exports

If the company is VAT-registered, on a foreign-currency document the line items get the 0% rate, and in the Note field the programme suggests the text about the basis: for goods the VAT exemption under Article 24 of the VAT Act (ZPDV) (export of goods), for services Article 12 of the VAT Act (place of supply outside Serbia) — for a mixed invoice both notes. The suggestion is editable and you delete/change it on the advice of your accountant; the VAT block is not printed on such a PDF.

Sending

Foreign-currency documents are not sent to SEF (SEF is exclusively for domestic transactions) — you send them to the customer by email as a PDF; for a bilingual document the suggested email text also comes with an English line. Matching with a foreign-currency bank statement works by document number; automatic matching by amount is deliberately switched off for foreign-currency documents (you confirm manually).