How to choose a digital postman

1. Does the provider have its own Access Point?

Some of the entities on the list merely forward through someone else’s infrastructure(they are “intermediaries”). That is not necessarily bad, but an operator with its own certified Access Point has direct control over delivery, outages and development. You can check this in the official list of the Financial Administration (in our case: PA SK ID EFSK000031).

2. Is the price list public and understandable?

A large part of the market does not publish its prices (“price list on request”). A transparent price without hidden items is a good sign. Watch in particular the price per document above the limit: with volume, that is exactly what shows up most.

3. How much does receiving invoices cost and what is included?

Receiving invoices is a regulatory obligation, not a premium feature, so it should cost nothing or only a minimum. Ask what is included: whether the provider keeps the originals (archive) and for how much, whether the archive can be switched off when you keep the originals yourself, and what the monthly receiving limit is; some providers have squeezed it down to a few dozen documents.

4. Does the provider handle reporting to the Financial Administration automatically?

From 2027 an invoice also comes with a report of its data to the tax authority (SK TDD). A good provider generates and sends it for you in the background. You should not have to deal with it manually. How it works is explained in the article on data reporting (TDD).

5. Does it have an open API and a test environment?

If you plan to connect an e-shop or an ERP, look for a REST API with documentation and ideally a sandbox for safe testing. Slovakia has a standardised national interface, SAPI-SK. Support for it means you will not be locked in with a single vendor.

6. Does it tie you to specific software?

ERP modules tend to be convenient, but they often lock you into their ecosystem. An independent transport layer leaves you free to change your accounting software without changing your provider.

7. Where are the data and how reliable is the operation?

Ask about the location of the data (ideally the EU), security and whether there is a public overview of system status. Deliverability of e-invoices is operationally critical.

8. What are the support and the language like?

Slovak-speaking support, understandable documentation and a real contact (not just a chatbot) are valued while the mandate ramps up. Check the response times.

9. Do you have to have one provider for everything?

No. Receiving invoices for your DIČ (tax ID) is always held by only one provider (it is recorded in the central SMP); for sending you may contract several at once, and which one sends an invoice is a matter of the settings of your accounting system (FS FAQ on eFaktúra, examples 36 and 73). The selection on the Financial Administration portal is not a contract: it is an expression of interest and the source of the verification data for the given provider (FAQ 72). You change the provider for receiving by terminating the contract; the original one deregisters you within 3 working days and issues a migration code with which the new provider takes over the record without any gap (FAQ II.32 and II.46). The Financial Administration does not notify anything between providers. The whole procedure is in the article changing your digital postman, the selection on the portal itself in the article choosing a provider on the FS portal.

Checklist

• I know who holds receiving for my DIČ and how I obtain a migration code from them if I want to move elsewhere.
• I know whether the provider has its own Access Point or resells (and who then actually delivers).
• A public, understandable price list including the price per document above the limit.
• A clear price for receiving including the archive of originals and a sufficient monthly limit.
• Automatic tax reporting (SK TDD) in the background.
• A REST API (SAPI-SK) and a test sandbox.
• No lock-in to a single ERP/software.
• Data in the EU, security, an overview of system status.
• Slovak-speaking support and clear documentation.

How we measure up against this list is summarised on the Comparison page. And since everything at Verteco is free until 31 December 2026, the best test is to try it directly.