E-invoicing software that already speaks the format Europe's rules expect
Each paid order in Olmira can produce a UBL 2.1 invoice aligned to EN 16931, the EU's standard for a structured, machine-readable e-invoice — alongside a normal PDF, generated automatically, with no separate invoicing software to buy or reconcile against.
What's actually inside the XML
The file declares itself against the EN 16931 customization (urn:cen.eu:en16931:2017) and carries the standard invoice type code, so a receiving system knows what it's looking at before it parses the body. Your company profile becomes the supplier party; the order's billing details become the customer party. Every line keeps its own tax category and rate, and mixed VAT rates, discounts and shipping are folded into the correct tax groups and reconciled the way the standard's rounding rule expects — not rounded once at the end and hoped about.
The one thing you have to fill in first
Legal name, a valid two-letter country code, a complete address, a tax or VAT ID. Olmira keeps flagging what's missing until the profile is complete — and the country requirement is enforced outright: without a valid code the e-invoice XML won't generate at all. It's a five-minute, one-time form. Complete it once and every order from then on inherits it, invoice footer note included.
What it costs — and what it doesn't need
It's a standard-aligned one: the XML follows the UBL 2.1 syntax and the EN 16931 semantic data model, the European standard behind most e-invoicing mandates. "Certified" implies a formal accreditation process Olmira hasn't gone through — what you get is a correctly structured document built to that standard, on every order, automatically.
Yes. Each line keeps its own tax category and rate, discounts and shipping are folded into the right group, and the tax total reconciles line by line to the EN 16931 rounding rule rather than being estimated once for the whole order.
That's the reason the format exists: EN 16931 / UBL 2.1 is a widely supported structure, not a proprietary Olmira export. Most accounting and e-invoicing platforms built for the European market can ingest it directly.