Setting up outgoing and incoming e-Invoices

e-Invoice is an invoice that is issued, sent and received in a structured electronic form. It is not a PDF sent by email, but an electronic document that is exchanged through the e-Invoice system.

This article describes the joint setup for outgoing e-Invoices that the location sends to customers and incoming e-Invoices that the location receives from suppliers. Sending and receiving e-Invoices is set up together because the same certificate is used, Fina as an information intermediary and the same Zoyya e-Invoice integration.

The setup and required checks apply to the partner Zoyya web application on desktop and mobile. Where navigation differs, both paths are shown below.

When to use this option?

This functionality is used when:

business sets up sending and receiving e-Invoices for the first time,
you need to activate the certificate for the Fina e-Account service,
should confirm Fina as an information intermediary,
Zoyya support needs to activate or check e-Account integration,
the application reports that the KPD tag is missing,
need to understand the difference between a PDF invoice and an e-Invoice,
the expected incoming e-Invoice is not visible in Zoyya.

Operation steps

Preparing integration

Prepare the certificate according to the article Obtaining a certificate for fiscalization.
Download and fill out the application form for the online service Fina e-Invoice for business entities.
Give the pass to Fina.
After processing Fina in the eTax / FISK application system, confirm Fina as an information intermediary according to Fina's official instructions.
Contact Zoyya Support to activate or verify Zoyya e-Account integration.
Check the data used on the e-Invoice according to the article Organization data (computer).
For outgoing e-Invoices, check the KPD marks on services and products.

When the KPD tag is missing

Read the application message and note the missing services or products.
For a service, open:
- on desktop: Settings > Price list > Services;
- on mobile: Main menu > Business > Settings > Price list > Services.
For a product, open:
- on desktop: Settings > Price list > Products;
- on mobile: Main menu > Business > Settings > Price list > Products.
Open a specific service or product.
Enter KPD Code.
Save the item.
Reissue the e-Invoice according to the article Overview and operation of outgoing e-Invoices (computer).

When the expected incoming e-Invoice is not visible

The incoming e-Invoice is not entered manually in the settings. Continue the check according to the article Overview and operation of incoming e-Invoices (computer) or Overview and operation of incoming e-Invoices (mobile phone).

Important: Zoyya e-Invoices work through Fina. Fina must be selected as an information intermediary for sending and receiving e-Invoices. Zoyya does not support other intermediaries for this integration.

After Fina is confirmed as an intermediary and the Zoyya integration is activated, the same setting is used for:

sending outgoing e-Invoices to customers,
receiving incoming supplier e-Invoices,
review of the status of issued e-Invoices,
work with incoming e-Invoices in the overview of incoming invoices.

Issuing and statuses of issued e-Invoices on the computer are described in the article Overview and operation of outgoing e-Invoices (computer). An overview of the status of issued e-Invoices on a mobile phone is described in the article Overview and operation of outgoing e-Invoices (mobile phone). Working with incoming e-Invoices is described in the articles Overview and operation of incoming e-Invoices (computer) and Overview and operation of incoming e-Invoices (mobile phone).

Prerequisites for installation

For the correct operation of outgoing and incoming e-Invoices, the following are required:

access to Zoyya Cash register included,
fiscalization certificate,
activated certificate for the Fina e-Account service,
Fina confirmed as an information intermediary for sending and receiving e-Invoices,
activated Zoyya e-Account integration,
correct organization data,
KPD marks on services and products used on outgoing e-Invoices in Fiscalization 2.0.

Organization data affecting accounts is described in the article Organization Data (Computer). If the certificate has not yet been requested, first open the article Obtaining a certificate for fiscalization.

Fina e-Account and intermediary

Zoyya uses the same certificate that is used to fiscalize the account. This certificate must be activated at Fina for the e-Invoice service.

To activate the certificate, the application form for the online service Fina e-Account for business entities is filled out and submitted to Fina. The application form and official Fina instructions are linked in the work steps above.

After Fina processes the application, the Tax Administration sends a notification to confirm Fina as an information intermediary. The confirmation is done in the ePorezna / FISK application system according to the official instructions of Fine.

Additional information about the procedure is available here:

Zoyya - Fiscalization 2.0, new information

Zoyya e-Account integration

Zoyya e-Account integration is not an ordinary user setting that is activated with a click. After activating the certificate on Fina and confirming Fina as an intermediary, contact Zoyya support for activation or integration verification.

Important: Activation of the e-Invoice integration in Zoyya is done through Zoyya support after the Fina e-Invoice and the information broker have been resolved.

When the application displays an integration warning or the user is unsure whether Fina is verified as an intermediary, Zoyya support is contacted.

KPD tags

For outgoing e-Invoices in Fiscalization 2.0, the invoice items must have KPD labels. If the service or product does not have a KPD mark, the application displays the message:

The following services/products do not have a KPD mark: ... Enter the KPD mark in the code book of services/products before issuing an e-Invoice.

The KPD mark is written on the service or product itself:

for services: open Settings > Price list > Services on desktop or Main menu > Business > Settings > Price list > Services on mobile, then open a service and enter KPD Code;
for products: open Settings > Price list > Products on desktop or Main menu > Business > Settings > Price list > Products on mobile, then open a product and enter KPD Code.

Important: Zoyya does not assign a KPD mark for a service or product. The classification should be checked through the official KLASUS browser or with accounting.

The official KLASUS browser is used to check the classification:

CLASS - State Bureau of Statistics

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Updated on: 24/08/2026

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