Tax and VAT

Whether a business is registered for VAT decides what goes on the invoice. The answer sits in the Financial Administration registers and, for cross-border trade, in VIES.

Three types of registration

Slovak law distinguishes ordinary VAT payers, entities registered under section 7 and section 7a of the VAT Act. They are three different registers with different consequences for the invoice, and confusing them is a common source of errors.

FirmAPI returns all three plus the registration and deregistration dates, so you can tell what applied on any given day, not just today.

Domestic and cross-border

For a Slovak counterparty the Financial Administration registers are the source of truth. For a customer in another member state you need VIES, the only place that confirms an EU VAT number is valid.

Registers in this group

Each register below is a separate source. Those with their own page also document the exact fields and update frequency.

Tax Authority – VAT payers

Current list of VAT payers including VAT IDs, refreshed weekly.

Register detail

Tax Authority – Tax reliability index

Tax reliability rating assigned by the Slovak Tax Authority.

Register detail

Tax Authority – Erased VAT payers

Companies removed from the VAT register with date and reason.

Register detail

EU VIES

European Commission service for real-time VAT ID verification.

Register detail

Try it on your own data

A free account requires no payment card. Our database holds 2 160 466 entities from 48 public registers.

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