Settings

How to set up invoice numbering

Čas: 1 minute

The numbering must by law be sequential and uninterrupted. Invoice.si does this automatically - you can customize the format and indexes.

The screenshots in this guide show the app interface in Slovak. The app is available in your language with the same layout.

Slovak VAT legislation requires sequential numbering of invoices — no gaps, no duplicates. Fakturuj.si handles this automatically for each document type separately.

Procedure

  1. In the left-hand menu, open Settings → Document numbering.
  2. Select the Numbering format — for example, 20250001 (year + annual index) or another predefined format.
  3. For each document type (Invoice, Quotation, Credit Note, Proforma Invoice, Delivery Note), you can see the current annual and monthly index. You can edit these manually using the pencil icon.
Nastavenie číslovania dokumentov
Tip: only use manual index editing when migrating from another invoicing system (to continue an existing sequence). Normally, let Fakturuj.si set the numbers automatically.

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