Is it enough for the accounting firm to send XML and PDF to the client by e-mail and the client sends it to himself via his postman?
Short answer
Yes, if the client checks the XML and actually sends it through its e-invoicing delivery-service provider. An e-mail from the accounting firm is only an internal submission of the document, not the delivery of the e-invoice to the customer; responsibility for correctness and deadlines remains with the client.
The accountant prepares, the client sends
A functional and extended form of cooperation with e-invoice.
Not shipping by delivery service
This step is only an internal submission of documents.
Actual shipping via postman
Statutory deadlines are calculated from there, not from the accountant's email.
Accountant's direct access
The client can give the accountant direct access to the postman's application instead of emailing.
Conclusion
An accounting firm can prepare both XML and PDF and email them to the client for onward delivery via their postman — this works, but the legal deadlines are calculated from the actual sending via certified delivery service, not from the email between the accountant and the client.
Sources
- Law no. 222/2004 Z. z. Coll. on VAT, § 76a and § 85o (as amended by Act No. 385/2025 Z. z. Coll.)
the VAT Act · FAQ of the Financial Administration of the Slovak Republic
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.