Practical guides for freelancers and small businesses — from sending your first invoice to staying compliant across borders.
How to register your business for AADE's myDATA REST API — the exact portal, menu path, and what you'll get at the end, so you can connect it to your invoicing software.
22 August 20264 min readWhich register numbers, courts, and director names your company must print on every invoice — by country.
7 July 20265 min readMissing the e-invoicing format isn't just a compliance footnote — Germany and Greece both attach real fines to it, and Greece's are surprisingly aggressive.
30 July 20265 min readYour German tax advisor almost certainly uses DATEV. Here's what that means for how you should hand over your invoices.
30 July 20265 min readE-invoicing is coming across Europe — Germany already has a deadline, Austria and others are following. Here's what it means for your business and what you need to do.
27 July 20265 min readBoth are valid German e-invoice formats, but they serve different clients. Here's how to tell which one you need — and which one you almost certainly don't.
30 July 2026A practical comparison of invoicing tools that meet Austrian legal requirements — Kleinunternehmer under §6 UStG, UID-Nummer, and UVA preparation.
27 July 20265 min readA practical comparison of invoicing tools for Cypriot freelancers — VAT exemption below €15,600, 19% VAT, and what each tool handles automatically.
27 July 20266 min readA practical comparison of invoicing tools that meet German legal requirements — §14 UStG fields, Kleinunternehmer support, and DATEV export.
27 July 20265 min readGermany draws a legal line between liberal professions and commercial traders. Here is what each means, how to tell which you are, and what changes.
20 May 20266 min readWhat every invoice must include, how to number them correctly, and how to handle VAT — so you get paid without the back-and-forth.
17 May 20266 min readWhat to file with FinanzOnline, when you need a Gewerbeschein, and how the SVS social insurance registration actually works.
30 July 20266 min readThe exact paperwork to file with the Finanzamt, what you need before you start invoicing, and how long each step actually takes.
30 July 20267 min readA step-by-step guide to incorporating a private limited company (LTD) in Cyprus — from name reservation to tax registration and your first invoice.
27 July 20268 min readA practical step-by-step guide to incorporating a GmbH or UG in Germany — from notary to bank account to tax registration.
19 May 20267 min readHow to incorporate an IKE in Greece — from articles of association to GEMI registration and tax number. A step-by-step guide for Greece's modern LLC.
19 May 20264 min readThree documents, three different jobs. Here's what each one is for, when you issue it, and what it legally represents.
27 July 2026Once your buyer is in a different country, VAT rules change significantly — and the B2B vs. B2C distinction finally matters.
24 July 20265 min readWithin the same country, the VAT rate depends on what you're selling — not on whether your buyer is a business or a consumer.
24 July 20266 min readA practical guide to all German business identifiers: Steuernummer, USt-IdNr., the new W-IdNr., and which one belongs where.
19 May 20265 min readDifferent products carry different VAT rates. Austria's four-bracket system is the clearest example of why — and how Billino handles it for you.
24 July 20265 min readA plain-English guide to VAT: what it is, whether you need to charge it, and where to find your VAT number on existing documents.
17 May 20265 min readThere are several legitimate situations where you issue invoices with no VAT at all. Here's when each one applies and what you need to document.
24 July 2026When a client doesn't pay, there's a clear sequence that works: a payment reminder, then a formal demand, then escalation. Here's the process.
27 July 20265 min readNET 30, due on receipt, Skonto — what these terms mean, which is standard where, and how to write them so you actually get paid on time.
27 July 20264 min readA scannable payment code on your invoice isn't a legal requirement — but it's a widely supported standard that eliminates typos and speeds up how fast you get paid.
30 July 2026