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Verifactu-compliant invoicing: what it means and how Facturaz handles it for you

Verifactu is Spain's new mandatory invoicing standard. See what it means for your business and how Facturaz makes every invoice compliant, signed and registered automatically.

5 min readLast updated: Apr 2026

Verifactu is Spain's new, mandatory way of creating tamper-proof invoices. This guide explains what it is, why it's coming for every business, and how Facturaz signs, chains and registers every invoice for you, so compliance just happens in the background.

If you run a business in Spain, you've probably heard the word Verifactu by now. Maybe from your gestor, maybe from a worried message in a freelancer group, maybe from the tax office itself. And maybe you're not entirely sure what it means for you, or what you actually have to do about it.

Here's the short version: Verifactu is the new way Spain wants every invoice to be created, signed and recorded, so the tax office can trust that the numbers are real and haven't been changed after the fact. It's coming for everyone, and the simplest way to stay on the right side of it is to use software that's built for it from the ground up.

That's exactly what Facturaz does. Let's walk through what Verifactu is, why it exists, and how Facturaz takes the whole thing off your plate.

What Verifactu actually is

Verifactu is the AEAT's system for verifiable invoicing. Under Spain's anti-fraud law, invoicing software has to create each invoice in a way that can be checked and can't be quietly edited later.

In practice, every invoice you issue gets three things:

  • A digital fingerprint. Each invoice is linked to the one before it in a chain, so you can't slip an invoice in, take one out, or change an amount without it showing.
  • A QR code. Anyone can scan it to check the invoice against the tax office's records.
  • A record sent to the AEAT. With a Verifactu system, the invoice details are reported to the tax office automatically.

The goal is simple: make invoices tamper-proof, and make fraud much harder. For an honest business, it mostly means your paperwork is cleaner and more trusted than ever. The catch is that you can't do this properly by hand or in a spreadsheet. You need software that's certified for it.

Why this matters for you, and when

Verifactu isn't optional, and it isn't going away. The rollout is staged: companies (SLs and similar) come first, and self-employed autónomos follow. Exact dates have shifted before and could shift again, but the direction is fixed. At some point, your invoices will need to be Verifactu-compliant, full stop.

The businesses that get caught out are the ones who wait until the deadline, then scramble to switch systems, relearn their invoicing, and migrate their data under pressure. The ones who do it calmly are the ones who move to compliant software early, while there's no rush, and simply forget about it.

That's the real value of getting ahead of this: not panic, just done.

How Facturaz handles Verifactu for you

This is where it gets easy. With Facturaz, you don't manage Verifactu. You just make invoices, and the compliance happens underneath.

Here's what that looks like day to day.

You create an invoice in seconds

Pick a client, add your items, and you're basically done. Facturaz fills in your IVA and, where it applies, your IRPF withholding automatically. Invoice numbering is handled for you, in order, with no gaps. You get a clean, professional PDF you can email straight from the app.

Every invoice is signed and registered automatically

The moment you issue an invoice, Facturaz signs it, chains it to the previous one and registers it under Verifactu. The QR code and the digital fingerprint are added for you. You don't click a special "make this compliant" button, because every invoice is compliant by default.

Setup is one click, not an afternoon

The one part that used to be fiddly, authorising your account for Verifactu, now takes a single click using Spain's official Autofirma app. You pick your certificate, confirm, and you're set. No downloading forms, signing them by hand and uploading them again.

If something's wrong, you know before the tax office does

Invoices can be rejected by the system, for example if a client's details aren't right. Facturaz flags these clearly, and its AI audit can scan your invoices before a deadline and point you straight at anything that needs fixing. You stay in control, you just don't get nasty surprises.

"Do I have to understand all of this?"

No. That's the point.

You don't need to know how the invoice chain works, what a hash is, or which article of which law applies to you. You need your invoices to be correct, compliant and easy to send. Facturaz handles the technical side so you can stay focused on the actual work, the thing you're good at and the reason you started your business in the first place.

Think of it like this: you don't need to understand how a card terminal talks to a bank to take a payment. You tap, it works. Verifactu invoicing in Facturaz is the same. You invoice, it's compliant.

Switching is easier than you think

If you're coming from a gestor, a different tool, or a folder full of spreadsheets, you don't lose your history. You can bring your existing invoices into Facturaz, and the AI reads the details for you and sets up your client list as it goes. Imported invoices are kept separate from your live Verifactu invoices, so there's no risk of anything being double-counted or double-filed.

Most people are up and running the same day.

The bottom line

Verifactu is the new standard for invoicing in Spain, and it's mandatory. You can treat that as a headache, or you can let it quietly make your business cleaner and more trusted, without doing any of the technical work yourself.

With Facturaz, compliant invoicing isn't a feature you switch on. It's just how invoicing works. You create the invoice; we sign it, register it and keep it audit-ready.

Get ahead of Verifactu while there's no rush. Start free with Facturaz → You won't pay anything until you send your first invoice.

This article is general information about invoicing in Spain and how Facturaz works. It is not professional tax advice. For advice about your specific situation, speak to a qualified professional.

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This guide was written by Facturaz and last validated on April 25, 2026