How it works

From a form to a delivered e-invoice.

Fill in a few fields, validate, and send a legally compliant e-invoice.

Invonio invoice editor with buyer, one line item and live VAT totals

Invonio

Create invoice Valid · EN 16931

Invoice number

RE-2026-0043

Issue date

30.06.2026

Bill to

Müller GmbH

DescriptionQty × Unit priceVATNet

Consulting, June 202612 × €85.0019%€1,020.00

Illustration · sample data

Step 1 · Write it

Create an invoice in a simple form.

Add your customer, the invoice details and line items. Invonio structures the data to the EN 16931 model, with VAT grouped by rate.

Invonio invoice form with invoice number, dates, VAT treatment, buyer, one line item and totals

DescriptionQty × Unit priceVAT %Net

Consulting, June 202612 × €85.0019€1,020.00

Illustration · sample data

Step 2 · Send it

Every invoice shows where it is: queued, sent or delivered. A sent invoice is locked — correct it with a linked credit note.

Invonio invoice page showing the delivery status and a linked credit note

Incoming e-invoices land in your inbox as a readable document, not a wall of XML. Download the original whenever you need it.

Invonio inbox showing a received e-invoice as a readable document

DescriptionQtyUnit priceNet

Beratung Q28€118.00€944.00

Reisekosten1€96.00€96.00

Download original

Illustration · sample data

In four steps

Four steps: business profile, invoice form, EN 16931 validation, then sending by email or Peppol with an archived copy

Illustration · sample data

Start free

Receiving is free forever and 3 invoices a month are free. Need more? From €6/month.