Documentation FS · transmission

Why select a mailman on the FS portal if I just want to send invoices?

⚠ Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.

Short answer

For income e-invoice is the registration via the portal Financial Administration Mandatory. It may not be necessary for the transmission itself in the transitional period, but the provider may require a verification token, which you will get by selecting the mailman via the FS portal.

Conclusion

Financial Administration of the Slovak Republic, FAQ 9/VAT/2025/IM k e-invoice, July 2026 update

Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.