A digital postman for accounting firms
EVERIFIN makes life easier both for your accounting firm and for your clients. Connecting a client to e-invoicing takes only a few minutes, and you earn a reward for every active one.
The only digital postman supervised by the National Bank of Slovakia. We protect invoices as strictly as payment data.
Mandatory from 1 January 2027
What do you get as an accounting firm?
A reward for every client
You receive a commission for every client you set up with EVERIFIN as their digital postman.
Free for your firm
Registration is free. Your client pays for documents according to their usage, and EVERIFIN sends them the invoice.
All your clients in one place
Received and issued invoices of all your clients. You and your client see them instantly, on the web and on mobile.
How to get started? Three steps, a few minutes per client
Choose EVERIFIN
On the Financial Administration website you select EVERIFIN as your client’s digital postman. If you are not authorised to act for the client, send them an invitation and they will do it themselves.
Confirm the activation
Once the digital postman is selected, you receive an e-mail from the Financial Administration. If you sent an invitation, the client confirms it. You will both see the invoices through shared access.
After that, everything runs by itself. EVERIFIN handles conversion, delivery via Peppol and reporting to the Financial Administration in the background.
Benefits for accounting firms
Offer for accounting firms
Manage the e-Invoices of all your clients from a single login. Your client pays directly for the documents you process.
- Archiving: 10 years*
- One access point to all the companies you manage
- Receipt scanning
- Shared access with your clients
- Access-rights management, companies within a group
- API connection
- InvoiceConnect – integration in your ERP
- InvoiceBox – export to your ERP
- Matching bank data with e-Invoices
- VAT estimate and cash-flow tracking
- VAT ID validation
- Alert when a supplier’s IBAN changes
- Detection of unusual amounts
- Multiple invoice number series and branches
Pricing for the companies you manage
- Accounting documents / month: 30 (Received: unlimited)
- Archiving: 10 years
- Receipt scanning
- Matching bank data with e-Invoices
- Shared access with your accountant: Manual download
- Accounting documents / month: 99 (Received: unlimited)
- Archiving: 10 years
- Receipt scanning
- Matching bank data with e-Invoices
- Shared access with your accountant: Easy sharing
- Accounting documents / month:
- Archiving: 10 years*
- Receipt scanning
- Matching bank data with e-Invoices
- Shared access with your accountant
- API connection
Prices in euros, excl. VAT. Support 9:00 – 17:00. * Archiving fee €1.15 / month per 25 GB
What does the EVERIFIN digital postman do?
Conversion, encryption, delivery via Peppol, reporting to the Financial Administration and archiving — we do it all in the background.
Why EVERIFIN
The only NBS‑supervised digital postman
We protect invoices as strictly as payment data.
Invoice and payment in one
Your client checks a received invoice and pays it from any of their accounts directly in EVERIFIN.
Fraud protection
Alerts when a supplier’s IBAN changes or an amount is unusual.
Connection to your accounting software
InvoiceConnect and InvoiceBox for supported accounting systems.
What the law says
An amendment to the VAT Act (Section 76a, Act No. 222/2004 Coll.) introduces mandatory e-invoicing through the European Peppol network.
Questions
What do I need at the Financial Administration?
Authorisation to act for the client. On the Financial Administration website you then select EVERIFIN as the client’s digital postman and confirm the activation in the e-mail the Financial Administration sends you.
How does the reward work?
You receive a commission for every active client you set up with EVERIFIN as their digital postman. The terms are set out in the commission agreement we conclude with you.
What if I am not authorised to act for the client?
Send the client an invitation from EVERIFIN. The client selects the digital postman at the Financial Administration and confirms the activation. You then both see the invoices through shared access.
How much does EVERIFIN cost an accounting firm?
Registration is free for your firm. Your client pays for documents according to their usage, and EVERIFIN invoices them directly. Paid plans are free until 31 December 2026.
Will my client see the same documents as I do?
Yes. You and your client both see received and issued invoices instantly, on the web and on mobile — with no e-mails and no attachments.
Can I transfer documents to my accounting system?
Yes. For , InvoiceConnect (integration directly in your ERP) and InvoiceBox (export to your ERP) are available. Your accounting system can also be connected via API.
Interested in working together?
We will gladly walk you through the service and go over the ways we can work together.