You do not have to. We are here to turn the chaos into order and peace of mind. E-invoicing does not have to be complicated — it just takes timely preparation. Below is a concrete client plan and a free accounting workspace for managing their e-invoices in one place.
Accountant access included · Free plan: 500 received + 5 sent/mo · API, automation, bulk, integrator and white-label priced separately
Start with your own workflow. Confirm what your accounting software will support, choose a digital mailbox provider that can also serve your clients and test how invoices will reach your books.
Ask one simple question: Will our current program be ready to send and receive Slovak e-invoices from 1 January 2027? Also ask whether you need an update and who will help you switch the feature on.
If the program is ready, you continue working in it as before. The program sends and receives e-invoices in the background, much like an email program sends and receives messages.
If the program cannot communicate with a digital mailbox provider, it may still not need replacing. The vendor or IT team can create a secure technical connection, called an API, between the two systems.
Compare not only price, but accountant access, multi-client switching, permissions, exports and software connectivity. Many digital mailbox providers offer dedicated solutions for accounting firms.
Compare certified digital mailbox providersReceive a test e-invoice, find it in the client workspace, export or synchronise it and verify who can see or change it. Do this before December.
If your program needs a technical connection, send its vendor or your IT team our API integration options. API simply means a secure way for two programs to exchange information automatically.
ePošťák offers accountants one workspace for all clients. You switch between companies without keeping a separate login for every client.
Request an accounting workspaceAny accountant can request their own workspace. You do not add client companies on your own — each client remains in control of their business and invites you after choosing and activating ePošťák.
Every client who chooses one of the web programs in our current price list — Free, Standard or Company — gets their own e-invoice mailbox. Once they grant you access, you can manage them from your accounting workspace.
We prepare one sign-in where you will later see every client who gives you access.
After the client activates ePošťák as their certified delivery service provider, the company owner sends an invitation to your email. You accept it and the company appears in your workspace.
With view-only access, you can see and download invoices for bookkeeping but cannot change anything. With broader accounting access, you can process documents and, if the client permits it, create and send e-invoices on their behalf.
Open the client, select the invoices you want to book, choose the Pohoda format and download the prepared file. Import that file into Pohoda and continue working there as usual. You do not retype every invoice by hand.
We notify the client and ask them to settle the payment. Do not worry: we do not stop receiving new e-invoices through Peppol, so invoices continue to arrive. The available features and the number of invoices shown in the web interface may then follow the limits of the Free program until payment is settled.
Transparency note: CPDS.sk is an educational project created by the ePošťák team. For binding interpretation, always rely on legislation and current Financial Administration guidance.
Explain to the client that invoices between Slovak businesses are changing from 1 January 2027. They will need a digital mailbox provider — a service that securely delivers e-invoices, much like an email provider delivers email.
Then work through these steps together.
The client can sign in to the Financial Administration's official VPDS application and choose a provider themselves. If you are authorised to act for that taxable person, you can sign in, select the correct client and make the choice on their behalf. The selection must be completed separately for every client entity.
Choosing a provider in VPDS is the first step. Then follow the selected provider's instructions and complete registration. With ePošťák, this activates the client's Peppol mailbox and Peppol ID so invoices know where to be delivered.
Complete setup with ePošťákA practical timetable: contact clients and select their provider from August to November 2026. Complete registration and test receipt during September to November. Use December only for unresolved exceptions, not as the start of preparation.
A provider can be changed. If your client wants to move to ePošťák, use our simple step-by-step guide.
How to switch to ePošťákUntil now, the workflow was simple — clients sent you invoices by email or handed over paper copies. You entered them into your accounting software and moved on.
From 1 January 2027 everything changes. Every business in Slovakia will be required to send and receive invoices electronically through a certified digital mailbox provider. Invoices will be in structured UBL format, routed through the international Peppol network, and recorded by the Financial Administration of the Slovak Republic in real time.
For accountants, this creates concrete problems:
Multiple digital mailbox providers will compete on the market. If you manage 50 companies, you could end up logging into 50 different systems — each with its own interface, its own export format, its own credentials.
E-invoices will all use the standard UBL format, but every provider will display them differently and offer different export options. Manual downloads and data entry may not go away — they'll just move from your inbox to a web portal.
When did a client's invoice arrive? Did the supplier actually send it? Was it delivered? Without a central place to check, you lose track of what's happening across your clients.
When a client chooses ePošťák as their digital mailbox provider and invites you as their accountant, their company appears in your accounting workspace. All authorised clients and their e-invoices stay in one place.
Client sends invoices by email or paper
All e-invoices in one portal
Manually re-keying data from PDFs into software
One-click export to your accounting software
No way to know if a client's invoice arrived
Real-time delivery status
Each client chooses your access level. View only is designed for downloading documents without changes; Accounting and Full accounting access allow the operations explicitly granted by the company owner.
The switch to e-invoicing isn't just stressful for business owners — it's a major shift for accountants too. That's why we built a tool that makes your work easier, not harder.
Select the invoices, click "Export to accounting software", and pick your format — Pohoda XML, Omega TXT, ISDOC 6.0, Money S3 XML, or CSV for Excel. No manual data entry, no downloading files one by one. More on accounting software integrations in our dedicated article.
Share your contact details. We review the request, prepare the workspace and send a setup link.
After selecting Kaja Solutions s.r.o. (ePošťák) in VPDS, the company owner sends an invitation to your email and chooses the access level.
Open the email link, accept the invitation and the company appears in your accounting workspace with the granted permissions.
As an accountant, you first request a free accounting workspace. It gives you one place for the client companies that use ePošťák as their certified delivery service provider (CPDS).
For every client separately, sign in to the Financial Administration portal under that taxable person and select Kaja Solutions s.r.o. (ePošťák). An accountant can do this on the client's behalf only with valid authorisation for that taxable person.
Select Kaja Solutions (ePošťák)Official VPDS application of the Financial Administration
In the company workspace, the owner enters the accountant's email address, chooses the access level and sends the invitation. Access is never created unilaterally by the accountant.
The email states the company and the offered access level. After clicking Accept invitation, the company appears in the accountant's workspace and is ready to manage within the granted permissions.
The accountant portal is and will always be free. Your clients pay for their digital mailbox service — you pay nothing to access their invoices.
No more logging into different systems. One portal, one login, visibility across all your clients.
The owner chooses View only, Accounting or Full accounting access and can change or revoke it at any time.
Pohoda XML, KROS Omega TXT, ISDOC 6.0, Money S3 XML, CSV for Excel. Select invoices, pick a format, download.
Get notified the moment a new invoice arrives for a client. No need to log in and check every day — the system alerts you.
Managing 10 clients or 500? The portal is built for accounting firms of every size.
Mandatory e-invoicing in Slovakia takes effect on 1 January 2027. The Financial Administration portal for choosing a digital mailbox provider is already available at vpds.financnasprava.sk. Do not leave the selection and testing until December. If preparation is postponed until the last minute, the business may fail to meet its statutory duties from 1 January 2027 on time. A breach of e-invoicing duties may result in a fine of up to €10,000, or up to €100,000 for a repeated breach.
Reach out now and we will review the request and prepare your accounting workspace in advance. When your first client switches to ePošťák, everything will already be in place — no waiting, no last-minute scramble.
For a full picture of what's changing for accountants, read our guide to e-invoicing for accountants. We've also put together a practical checklist for accounting firms and a step-by-step guide to onboarding your clients.
These Slovak-language guides help you prepare your office, explain the change to clients and set up a repeatable onboarding process.
Kompletný sprievodca novým workflowom, komunikáciou s klientmi a praktickou prípravou.
Opakovateľný onboarding, komunikačné šablóny a postup prechodu klientov.
Desať konkrétnych krokov na prípravu účtovníckej kancelárie a jej klientov.
Ako efektívne spravovať e-fakturáciu naprieč desiatkami klientských firiem.
Prehľad Peppol integrácie a exportov v slovenských účtovných softvéroch.
We hope e-invoicing will be a little easier with ePošťák.