Can I issue an e-invoice from Excel?
Short answer
Excel can be the data source, but the mandatory e-invoice must be created as a valid structured document in a supported format and pass checks.
Excel can help
The table can carry document number, partner, item, prices, rates and payment information.
XML is critical
The result must be a structured invoice that is verified by the validator and processed by the partner.
Not enough columns
Missing numbers, wrong units or amounts can break the export even with a nice table.
We need an evidence package
Save XML, report, preview and link to original data source.
Conclusion
Use Excel as an input aid, not as the final e-invoice format.
Sources
- Law no. 222/2004 Z. z. Coll. on VAT, § 76a
- Law no. 222/2004 Z. z. Coll. on VAT, § 85o
- UBL/Peppol rules for structured invoice
Act No. 222/2004 Z. z. Coll. about VAT · FAQ of the Financial Administration of the Slovak Republic on e-invoice (7/7/2026) · Peppol BIS Billing 3.0
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.