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Independent software analysis · Spain

Freelancing in Spain? Your invoicing software is about to become a legal matter.

We are SoftwareLegal360, an independent Spanish publication analysing invoicing, management and AI software for law firms, accountants and freelancers. Most of our content is in Spanish — this page is our English front door for the expat community.

Updated · September 2026
Illustration of a modern freelancer's digital kit: laptop, scales of justice and documents

Start here: VeriFactu in plain English

Mandatory from 2027 · Fines up to €50,000

Spain's new invoicing integrity system applies to every autónomo, whatever your nationality. Our English guide covers the real deadlines, the fines, how to spot genuinely compliant software — and how to comply for free.

Editor's picks for expat freelancers

Two tools, two different problems

They don't overlap: one keeps your invoicing legal in Spain, the other handles VAT when you bill clients abroad.

Invoicing in Spain · VeriFactu

STEL Order

Free plan

A permanent free plan — no card required — with VeriFactu-compliant invoicing built in, plus quotes, clients and a mobile app. Over 50,000 active users and a 4.9/5 average rating.

EU & international VAT · Online sales

Quaderno

Nº1 for VAT

Billing clients outside Spain? It calculates the correct VAT per country, validates VAT numbers in VIES and generates OSS-ready reports. Spanish company, English-friendly interface.

The rest of the site is in Spanish

40+ guides and comparisons

If your Spanish is up to it — or your browser translates — these are our most useful pages for freelancers:

Who we are

SoftwareLegal360 is an independent editorial project. We test and compare software, we publish our methodology openly, and we disclose every affiliate relationship: if you sign up through our links we may earn a commission at no cost to you. That never changes our conclusions. Nothing we publish constitutes legal or tax advice.

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