> ## Documentation Index
> Fetch the complete documentation index at: https://nayax-44d6e37b-fis-cortina.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Regional Requirements

> Country-specific FiscalInfo fields and deposit fee handling.

FisCortina is designed to accommodate the fiscal requirements of multiple tax jurisdictions. The `FiscalInfo` object provides flexible fields that map to region-specific tax authority identifiers. Additionally, some regions require fiscal data to be displayed on the device screen at the end of a transaction.

## Country-specific parameters

Croatia and Poland are shown here as examples of how regional tax authority identifiers map to `FiscalInfo` fields. FisCortina supports additional regions not listed here. Contact your Nayax Integration Engineer for guidance on your specific region.

<AccordionGroup>
  <Accordion title="Croatia (CIS): Fiscalization Act, Porezna uprava" icon="flag">
    | FiscalInfo Field       | Croatian Identifier | Description                                                    |
    | ---------------------- | ------------------- | -------------------------------------------------------------- |
    | `FiscalProtectionCode` | ZKI                 | Zaštitni kod izdavatelja (issuer protection code)              |
    | `FiscalSignature`      | JIR                 | Jedinstveni identifikator računa (unique invoice identifier)   |
    | `FiscalCompanyTaxId`   | OIB                 | Personal Identification Number of the issuer                   |
    | `FiscalInvoice`        | —                   | Invoice designation in format: `number/business unit/register` |

    **Example: Full FiscalInfo response for Croatia**

    ```json theme={null}
    {
      "fiscalResponse": {
        "Result": {
          "ResponseCode": 0,
          "Verdict": "Approved",
          "StatusMessage": "Success",
          "ProviderErrorCode": 0
        },
        "FiscalInfo": {
          "FiscalDateTime": "20250506143508",
          "FiscalRrn": "d6e35283-eb1f-4e15-8899-e30d65636f5a",
          "FiscalId": 5208211,
          "FiscalReceiptUrl": "https://porezna.hr/racun/d6e35283",
          "FiscalInvoice": "101/1/1",
          "FiscalSignature": "JIR-4f2c8a3e1b9d6f7c2e4a8b3d5f1e9c7a",
          "FiscalProtectionCode": "ZKI-98AFB231C4D2E5F6A7B8C9D0E1F2A3B",
          "FiscalCompanyTaxId": "12345678901"
        }
      }
    }
    ```
  </Accordion>

  <Accordion title="Poland (KSeF): Krajowy System e-Faktur" icon="flag">
    | FiscalInfo Field     | Polish Identifier     | Description                                                                                                             |
    | -------------------- | --------------------- | ----------------------------------------------------------------------------------------------------------------------- |
    | `FiscalInvoice`      | KSeF reference number | Reference number for the e-invoice                                                                                      |
    | `FiscalCompanyTaxId` | NIP                   | Numer Identyfikacji Podatkowej (tax ID)                                                                                 |
    | `Data.POSDisplay`    | —                     | Polish tax law requires fiscal data to be shown on the device screen. See [POS Display](/docs/fis-cortina/pos-display). |
  </Accordion>

  <Accordion title="Other regions" icon="globe">
    | FiscalInfo Field       | Description                                                 |
    | ---------------------- | ----------------------------------------------------------- |
    | `FiscalSignature`      | Any authority-issued digital signature or verification code |
    | `FiscalProtectionCode` | Any regulatory protection or hash code                      |
    | `FiscalCompanyTaxId`   | Merchant's tax registration number in local format          |

    Contact your Nayax Integration Engineer for guidance on any region not listed here.
  </Accordion>
</AccordionGroup>

***

## Deposit fee handling

Some regions and transaction types include a deposit fee component: a surcharge collected at the point of sale and tied to the fiscal record.

<Note>
  **Coming soon.** Full documentation for deposit fee handling is currently in progress. This section will cover how deposit fees are represented in the fiscal request, how they interact with the `Products` array, and any region-specific requirements. (Ref: NCS-126984)

  If your integration involves deposit fees, coordinate with your Nayax Integration Engineer directly for interim guidance.
</Note>

## Next steps

<CardGroup cols={2}>
  <Card title="POS Display" href="/docs/fis-cortina/pos-display">
    Format and send fiscal data for display on the device screen.
  </Card>

  <Card title="Request & Response Reference" href="/docs/fis-cortina/response-reference">
    Full field definitions and response codes for all endpoints.
  </Card>
</CardGroup>