Veerenni 40a
10138 Tallinn
+372 6 519 519

Unifiedpost Group was founded in Belgium in 2001 and since September 2020 we are listed on Euronext Brussels. Unifiedpost AS has offered its services to Estonian customers for more than 20 years. Under brand names Itella, Opus Capita and Fitek, we became the leading provider of invoicing services to both public sector and businesses. 

Here you can read more about our history and acquisitions over the years.

Unifiedpost Group wants to become the leading cloud-based platform for SME business services built on “Documents”, “Identity” and “Payments” and help customers structure complex financial administrative processes by delivering simple, smart, digital solutions. 

Unifiedpost AS employs 50 people in Estonia.

Our offering in Estonia




The Administrative Billing Solution For Entrepreneurs

Simplifying the administrative burden for SMEs, the self-employed and freelancers.… is our core belief.

We offer you the opportunity to manage all of your administration and invoicing in a smooth, simple and secure way. Our all-in-one platform for administration & billing provides an overview of all your incoming and outgoing invoices, on demand from anywhere.. Allowing you to spend less time on administration and invoicing, and make quick adjustments where necessary.

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Fitekin and Purchase Invoice Solution 

Fitekin is Unifiedpost’s online purchase invoice management system, which enables the approval of purchase invoices, cost allocation, and automation of these processes. It simplifies the management of e-invoices, PDF invoices, and paper invoices. Fitekin offers the possibility of teleworking, as invoices can be managed from anywhere. The only prerequisite is that you have an Internet-connected smartphone, tablet, or computer. Invoices confirmed and posted in the invoice management system Fitekin are sent to the customer’s accounting software (ERP) or, if necessary, to another customer’s information system. The Fitekin solution makes the whole purchase invoice processing process fast, easy, and clear. Invoices with information are stored in accordance with the time prescribed by law. So you can also use Fitekin as an archive of purchase invoices, which makes searching the invoice archive quick and easy.

Login Fitekin           More info


Sales Invoice Solution 

We enable companies to conveniently and quickly automate the entire invoicing process. The company sends the invoice data to us, either from the accounting system or from the business software. We do everything else - converting data, generating sales invoices, visualizing invoices, sorting invoices between different invoicing channels, and sending invoices to consumers. We offer your company the opportunity to send sales invoices to business and private customers through both physical and electronic channels. We also archive your company's sales invoices and make those available to the customer service. 

More info is a fast and modern solution for sending sales invoices, which combines different usage possibilities. Invoices can be sent from the platform to the Estonian e-invoice network and Estonian banks, as well as international e-invoices to various European countries. is a technologically fresh platform that can be expanded with different possibilities; new services are opened step by step. Invoices in pdf format can be sent to those who do not yet operate with e-invoices.

As of July 1, 2019, e-invoices can be sent to the state, local governments, and other public sector institutions in the required format via

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Unifiedpost offers a payment service for bulk invoice senders, where the customer pays the invoice sent by email with the attached payment button. The payment service can be used both in the cover letter of invoices sent by email and in the document sent, as well as on printed invoices with a QR code. The payment service is an additional service for sending invoices. The payment option is added to the invoices as a payment button (in the technical sense with a payment link), and the recipient of the invoice can choose their home bank from among the banks and pay the invoice securely.

The invoice sender can monitor the invoice life cycle. Is the invoice open, paid, is it due, or is it overdue? A unique payment link is generated for each invoice, which can be used in different environments and added to reminders. For example, in the self-service portal, in an SMS or email sent as a reminder, etc.

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We offer the EDI (Electronic Data Interchange) recognized as the standard in the international business market, which combines different business management systems and ensures the efficient exchange of electronic data between trading partners. Electronic data exchange solutions are relevant not only for businesses that handle a large number of orders, managing stocks of goods and inventories: such as wholesale, retail, logistics and transport, manufacturing companies, hotels. The EDI solution can be tailor-made for small and medium-sized businesses.

EDI helps to “talk” between the business management systems of suppliers, consignees, logistics companies and other process participants in real-time. Submission of orders, confirmation of receipt, waybills, invoices delivery in your company will become an effective process and you will feel the real value when you start using it.

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News & Events

Why do I need an e-invoice?

Tallinn (Estonia), 8 Sep 2021 — Andrus Kaarelson, CEO of Unifiedpost Estonia, explaining the e-invoices on the Estonian market and why the private sector should learn from the Estonian state.

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Unifiedpost Estonia together with Telia makes the e-receipt widely available

Tallinn (Estonia), 1 June 2021 — 230,000 m-parking customers will be the first in Europe to use a unique mobile e-receipt.

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Fitek Group is rebranding to Unifiedpost Group  

La Hulpe (Belgium), 5 January 2021 — Fitek - the leader in financial automation processes, known for developing and operating e-invoice sending and receiving solutions, is rebranding  to Unifiedpost Group as of January 2021. 

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You're in good company

"We chose Unifiedpost (before Fitek LT) as our partner years ago. They were then and still are professionals in their field. Using the sales invoice service helps us save time on both manpower and the development and management of technical solutions. The most important thing for our customers is that the issued invoices are correct and reach them on time. We send over 30,000 invoices a month, and the volume of customers and invoices is constantly growing."

Katrin Ruben, Product Manager, Luminor Liising AS

“TalTech, Tallinn University of Technology uses a complete Unifiedpost (before Fitek LT) web-based billing system solution. Purchase invoices are received and digitized by Unifiedpost. Invoices are sent to the invoice management system, where the invoices are processed in-house, and the information reflected in the invoice is sent to the TalTech financial information system MS Dynamics NAV. Invoices are archived in the e-archive. The reasons for the introduction of the e-invoicing system were the acceleration of the invoice circulation process, the possibility to process documents regardless of time and place, the reduction of technical work, and the improvement of data quality. The system has met all our expectations in this regard.”

Ave Tamm, Head of the TalTech Accounting Department

"The transition to e-invoicing is the future and PDF or paper invoices will disappear. The sooner we make new things clear to ourselves and start using them, the more successfully we will move towards the future. The benefits can be measured both in the number of hours previously spent entering invoices and in the increase in the turnover of invoices within the company."

Rainer Rohtla, CEO of Via 3L Group

"The speed of invoice movement has improved, especially from units located in different locations. Problematic invoices do not disappear into someone’s drawer but find a quick solution. Everyone can handle invoices promptly and does not have to travel to the office to sign them. The auditor can be allowed in the e-environment; there is no need for subsequent inspection and transmission of annoying purchase invoices in PDF format."

Kadi Abro, Chief Financial Officer of Jazz Car Wash

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