Aestus financijsko savjetovanje d.o.o. (OIB: 07521517800) is the developer of the Parra software and an authorized information broker. You can contract the information broker service with Aestus through your Parra user profile.
You need to contract the information broker service with Aestus if you want to use the Parra app to:
Only receive eInvoices (B2B)
Only issue and fiscalize eInvoices (B2B and B2G)
Receive (B2B) and issue as well as fiscalize eInvoices (B2B and B2G)
The procedure will differ depending on whether you have uploaded a fiscalization certificate or not.
Fiscalization certificate has been uploaded to Parra app
For users who have already uploaded a fiscalization certificate for final consumption, the steps are as follows:
In the menu bar on the left-hand side, go to Settings, then under Documents issuance select Fiscalization and eInvoices settings.
In the Information broker for eInvoices section, click “Appoint Aestus as your information broker”.
A new window will open where, by clicking “You can review the contract here”, you can read the contract.
After reading the contract, accept it by checking the box next to “I confirm that I have read and accept the contract with Aestus financijsko savjetovanje d.o.o. for the provision of information broker services.”
Then click “Confirm and sign” in the bottom right corner.
A message will appear confirming that you successfully signed the contract for information broker service. You will receive an email confirming that the service has been succesfully contracted and a reminder for the next step in FiskAplikacija.
The next required step must be completed in FiskAplikacija on the ePorezna portal. Confirm the "Adresa za zaprimanje eRačuna" (address for receiving eInvoices). You are required to confirm this address no later than December 31st, 2025.
The steps in ePorezna are as follows:
a. Open the official ePorezna website.
b. Select „Ulaz/Odregistracija“.
c. Choose one of the available options depending on the credentials you have, and click “Ulaz u korisnički portal>”.
d. In the lower left segment under Usluge, select FiskAplikacija.
e. After clicking on FiskAplikacija, a new web window will open. On the left menu bar, click “Fiscalizacija 2.0”.
f. After clicking “Fiscalizacija 2.0”, a dropdown menu will appear where you need to select “Administracija”.
g. The tabs “Adrese za zaprimanje eRačuna ” and “Ovlaštenja za fiskalizaciju” will appear.
h. Select “Adrese za zaprimanje eRačuna”.
i. A table with data will appear. In the last cell under “Akcija”, there is an eye icon. Click the eye icon; a window will appear where you confirm the address for receiving eInvoices.
j. After clicking “Potvrdi”, the final window will appear where you also confirm your selection.
k. Once everything is saved, in the main table under the “Status” column, a green “Potvrđen” will appear.
8. After you have confirmed the address for receiving eInvoices in FiskAplikacija (steps a–k), log in to the Parra app. In Fiscalization and eInvoices settings, under the Information broker for eInvoices section, a message will appear indicating that Aestus has been successfully confirmed as the eInvoice exchange system. Please note that the notification in the Parra app may take a few minutes to appear after confirmation in FiskAplikacija.
Note: If you have connected your fiscalization certificate with the Parra app, all fiscalization messages (related to B2C invoices and B2B/B2G eInvoices) for your company will be signed with your fiscalization certificate.
If your fiscalization certificate expires or is deleted, you will not be able to issue B2C invoices or eInvoices. To continue issuing eInvoices, you must authorize Aestus financijsko savjetovanje d.o.o. for fiscalization through FiskAplikacija on the ePorezna portal – instructions for adding authorization are described in step 8 of the next article.
Fiscalization certificate has not been uploaded to Parra app
A fiscalization certificate is not mandatory for fiscalizing eInvoices, as this can be done with the certificate of the information broker – Aestus financijsko savjetovanje d.o.o.
For users who have not uploaded a fiscalization certificate, the steps are as follows:
In the left-side menu bar, go to Settings, then under Documents issuance select Fiscalization and eInvoices settings.
In the Information broker for eInvoices section, click “Appoint Aestus as your information broker”.
A new window will open offering two options:
a) “Add your fiscalization certificate” – by clicking this option, you can upload your fiscalization certificate (B2C) and then contract the information broker service in fewer steps.
b) “Skip step” – if you do not have a fiscalization certificate, skip its upload and continue contracting the information broker service following the instructions below.
4. Download the contract to your device by clicking the download icon next to “Download the contract to appoint Aestus as your information broker”.
5. Then the person authorized to represent the company must sign the contract – with electronic signature or certificate, or ink signature.
6. Once the contract is signed, upload it to Parra by clicking “Upload file”.
7. Click “Confirm” in the bottom right corner to save the contract.
After successfully uploading the contract, you will receive an email confirming that the contract has been successfully uploaded. In the Information broker for eInvoices section, the status will show “Pending review”, as illustrated below.
Once we have reviewed the contract, we will confirm by email whether the contract is accepted or rejected.
The email confirmation of an accepted contract will also contain instructions for the next steps to complete the process.
If the contract is rejected, you will receive an email with an explanation and instructions to fill out and upload the corrected contract (repeat steps 4–7).
Contracts that have been correctly uploaded to Parra app are typically reviewed within the next business day.
Once the contract is accepted, a notification will appear in the Parra app, as illustrated below.
8. After the contract has been accepted by Aestus financijsko savjetovanje d.o.o., complete the next two required steps in FiskAplikacija on the ePorezna portal. First, confirm the address (access point, i.e., the application) for receiving eInvoices. You must select an address for receiving eInvoices by December 31st, 2025; if needed you can change it later.
The steps in ePorezna are as follows:
a. Open the official ePorezna website.
b. Select „Ulaz/Odregistracija“.
c. Choose one of the available options depending on the credentials you have, and click “Ulaz u korisnički portal>”.
d. In the lower left segment under Usluge, select FiskAplikacija.
e. After clicking on FiskAplikacija, a new web window will open. On the left menu bar, click “Fiscalizacija 2.0”.
f. After clicking “Fiscalizacija 2.0”, a dropdown menu will appear where you need to select “Administracija”.
g. The tabs “Adrese za zaprimanje eRačuna ” and “Ovlaštenja za fiskalizaciju” will appear.
h. Select “Adrese za zaprimanje eRačuna”.
i. A table with data will appear. In the last cell under “Akcija”, there is an eye icon. Click the eye icon; a window will appear where you confirm the address for receiving eInvoices.
j. After clicking “Potvrdi”, the final window will appear where you also confirm your selection.
k. Once everything is saved, in the main table under the “Status” column, a green “Potvrđen” will appear.
9. Then, still in FiskAplikacija, on the “Ovlaštenja za fiskalizaciju” tab, add fiscalization authorization for Aestus financijsko savjetovanje d.o.o. as follows:
a. On the right side, click “+ Novo ovlaštenje”.
b. After selecting “+ Novo ovlaštenje”, a new window will open. Enter the OIB of the access point (Aestus financijsko savjetovanje d.o.o. OIB: 07521517800), click “Dohvati”, and select the desired start date for the authorization.
c. Save your selection by clicking “Spremi”
10. Once you have successfully confirmed the address for receiving eInvoices and added fiscalization authorization for Aestus financijsko savjetovanje d.o.o., log in to the Parra app. In Fiscalization and eInvoices settings, under the Information broker for eInvoices section, a message will appear indicating that Aestus has been successfully confirmed as the eInvoice exchange system. Please note that the notification in the Parra app may take a few minutes to appear after confirmation in FiskAplikacija.
Sending and receiving eInvoices through the Parra app will be availabe starting January 1st, 2026.
How to review the infromation broker service contract?
The contract you signed for the information broker service can be reviewed in Parra app under “Settings” > “Fiscalization and eInvoices”, in the Information broker for eInvoices section. Click on the icon next to Contract (as shown in the image below), and a new browser tab will open with the text of the contract.
Information about the date when the contract was signed, as well as the user who uploaded it, is listed in the Information Intermediary for eInvoices section.
How to terminate the information broker service contract with Aestus financijsko savjetovanje d.o.o.?
Contracting the information broker service with us does not involve a long-term obligation, and you can terminate this service at any time without penalties. To request termination of the information broker service contract, send an email to [email protected].
We will get back to you as soon as possible with the next steps.