About the project

A clearer map of European e-invoicing

E-Invoicing Guide is a structured, source-led reference for businesses navigating country mandates, deadlines and technical requirements.

What we publish

We turn official regulatory material into reusable country records. One verified deadline powers the country guide, deadline calendar, homepage and requirements checker, reducing duplicated facts and inconsistent updates.

Our sourcing approach

Primary authorities—tax administrations, finance ministries, legislation and official portals—take precedence. Each country record includes a source and last-verified date. Secondary commentary may add context but should not establish a legal deadline.

What this site is not

It is not a law firm, accounting practice or tax adviser. Our guides are a starting point for research and implementation planning, not a substitute for advice tailored to a specific entity or transaction.

Corrections and contact

Regulations move quickly. To flag an outdated source or factual issue, email hello@einvoicingguide.com with the relevant official reference.